KR102623400B1 - Power supply having a smart power controller that solves all problems arising from input and an air circulating apparatus using the same - Google Patents

Abstract

The present invention includes a smart power controller (1) that detects abnormal power of AC power in an AC power line connected to a power supply device and controls energization of the power line; The smart power controller (1) includes an input unit (Input) where AC power is input, an output unit (Output) that outputs AC power, and a switching unit that passes power between the input unit (Input) and the output unit (Output). (60); A voltage detection unit 70 that outputs an input voltage and a reference voltage; And a control unit 10 that calculates the difference between the reference voltage of the voltage detection unit 70 and the input voltage and controls the switching unit 60 to cut off the power when it exceeds the set range. When an abnormal voltage is detected, the time interval of the set timer 150 is initialized, reset, and counted, and after the reset time interval is completed, the switching unit 60 is turned on based on the zero potential point of the AC sine waveform to energize the power. ; It is characterized by .

Description

Power supply having a smart power controller that solves all problems arising from input and an air circulating apparatus using the same}

The present invention automatically blocks the incoming AC power whenever overvoltage such as overvoltage, undervoltage, surge and peak voltage, and standby power occurring in the input power is detected, and reconnects the load when the AC power voltage stabilizes again to a safe level. It can operate normally, and even when standby power is cut off and surge and peak voltages are introduced into the input, it unconditionally starts at 0° after several tens of ms and prevents inrush. It is a smart device with a separate structure that solves all problems that occur in the input. The aim is to provide a power supply device with a power controller and an air circulator using the same.

Recently, the air circulator market is emerging as a promising market due to fine dust flowing in from domestic and foreign countries. As the air quality in enclosed places increases with the carcinogen radon and other substances harmful to the human body, air circulator products with various functions added to bring in outside air inside and circulate inside air outside are on the market. This is a trend that is being shown.

Meanwhile. The air circulator is a product driven by an electronic circuit device, and if more than a certain amount of current is supplied, not only is the lifespan shortened, but the fan motor is damaged.

In modern times, the trend of technological development such as miniaturization, weight reduction, higher speed, and lower power consumption of electrical or electronic devices has made the devices more precise, which makes the devices vulnerable to external disturbances (e.g., abnormal power sources such as overvoltage). . Accordingly, developers were seeking various measures to prevent damage from external disturbances when designing devices.

Accordingly, research on protection circuits to prevent damage from such abnormal power sources has been actively conducted, but no clear results have been achieved to date.

In addition, as the power source is used in combination with various devices, interference in the form of noise and peak voltage generated by peripheral devices using the same power source accelerates cracks in the devices, shortening their lifespan. There is a problem with shortening

For example, when overvoltage occurs from the AC input power line, a 380V overvoltage protection circuit is installed to protect against overvoltage, but due to the problem of increased cost, a protection circuit consisting of an SCR, a small condenser, and a resistor is adopted. However, the overvoltage protection circuit using SCR does not recover even when normal power is applied until the charged condenser is completely discharged. In other words, there is an irrationality in that it operates again only after discharging is completed after turning it off. In addition, as soon as 380V is applied to the product, the internal pressure of the internal components is exceeded, so there are many cases where the components are already damaged.

In addition, in the case of wall switches, they do not simply have an on/off function, but electronic controller switches equipped with display-type CO ₂ concentration, fine dust concentration, and filter performance detection functions are mainly used. At this time, regardless of whether the wall switch is on/off, current is required to drive the display or LED indicator lamp, etc., and since a potential difference is generated accordingly, tens of volts of power are generated even when the switch is turned off, and the SMPS turns on the power. Since the recognition and circuit operation problems occur, the standby power consumption of the air circulator occurs.

Additionally, in the past, overcurrent may occur, causing damage to the fuse or damage to components in the input and rectifier parts of the product. At this time, unless the fuse is designed to be removable, it must be replaced.

In addition, conventionally, in order to withstand surges of 4Kv or more, it can be improved by adding a surge absorber or surge protector separately to the input or using a varistor with a very large capacity. If the input is not filtered, the circuit part is damaged and sparks occur. It can happen.

In addition, conventionally, when an inrush current occurs, a situation in which an input peak occurs occurs very frequently, and the difference and damage are large depending on each phase angle of the AC power source, which can lead to product defects. That is, in the past, problems with product defects due to inrush current may occur.

In addition, conventionally, because standby power is consumed at about 1% of the rated power (ex: about 4W for 400W), standby power can be reduced only by physical shielding. That is, in the past, there was a problem of energy waste due to standby power.

KR 10-2084050 B1(2020.02.26)

The present invention was created to solve the above-described conventional problems. The purpose of the present invention is to detect abnormal voltage, automatically cut off the AC power line, and prevent inrush when restarting. The aim is to provide a power supply device with a smart power controller that solves the problem and an air circulator using the same.

The present invention may include the following examples to achieve the above object.

An embodiment of the present invention includes a smart power controller that detects abnormal power of AC power in an AC power line connected to a power supply device and controls energization of the power line, and the smart power controller has an input unit (Input) where AC power is input. and an output unit (Output) that outputs AC power, a switching unit that conducts power between the input unit (Input) and the output unit (Output), a voltage detection unit that outputs the input voltage and the reference voltage, and the reference voltage of the voltage detection unit. It includes a control unit that calculates the difference in input voltage and controls the switching unit to cut off the power when it exceeds the set range. When an abnormal voltage is detected, the control unit initializes the time interval of the set timer, resets it, and then counts the reset time. We provide a power supply device with a smart power controller that solves all problems arising from the input, which is characterized by turning on the switching unit to energize the power based on the zero potential point of the AC sine wave after the interval is completed.

In the above embodiment, the control unit includes a zero potential detection module that detects a zero potential, an abnormal voltage detection module that detects an abnormal voltage by calculating the difference between the detection voltage and a reference voltage, and initializes a set time interval when the abnormal voltage is detected. , a timer that resets and counts, and a switching driver that turns on the switching unit based on the zero potential point according to the time interval calculated by the timer and turns off the switching unit when an abnormal voltage is detected by the abnormal voltage detection module.

In addition, the switching unit includes a first switching element and a second switching element, the base of the first switching element is connected to the control unit, a diode is connected to the input terminal in the forward direction toward the input side, and the second switching element has the input terminal connected to the output side. It is characterized by being connected in the forward direction.

In addition, the voltage detection unit may include a plurality of distribution resistors connected in series to distribute the input voltage below a set level, and a reference resistor installed on a power line branched from the power line to which the plurality of distribution resistors are connected to generate a reference voltage. You can.

Another embodiment according to the present invention is a smart power controller that solves all problems occurring in the input including a power supply device with a built-in smart power controller of the above embodiment and an air circulator that receives power supplied from the power supply device. An air circulator using an equipped power supply is provided.

Therefore, unlike the existing method of configuring a protection circuit using a fuse, surge observer, surge protector, and large-capacity varistor, the present invention is capable of recovering and preventing product defects caused by sparks, damage to circuit parts, and input peaks. There is an effect.

Figure 1 is a block diagram showing a power supply device equipped with a smart power controller that solves all problems occurring at the input and an air circulator using the same.
Figure 2 is a circuit diagram showing a smart power controller.
Figure 3 is a block diagram showing the control unit.
Figure 4 is a flowchart showing a control method of a smart power controller.
Figure 5 is a graph showing a waveform according to an embodiment of the present invention.

Although the present invention may be subject to various changes and may have various embodiments, specific embodiments will be described in detail by illustrating them in the drawings. This is not intended to limit the present invention to specific embodiments, and is not intended to limit the present invention to any of the changes, equivalents, or substitutes included in the spirit and scope of the present invention for connecting and/or fixing structures extending in different directions. It must be understood as applicable.

The terms used herein are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that it does not exclude in advance the existence or possibility of addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, a preferred embodiment of a power supply device equipped with a smart power controller that solves all problems arising from input according to the present invention and an air circulator using the same will be described in detail with reference to the attached drawings.

Figure 1 is a block diagram showing an air circulator using a power supply with a smart power controller that solves all problems occurring at the input.

Referring to Figure 1, the present invention includes a smart power controller (1) and an air circulator (4).

The smart power controller (1) is a power supply device that supplies power to the air circulator (4) and switches the AC power line connected to the air circulator (4) to block or energize the supplied power.

Here, the smart power controller (1) automatically cuts off the AC power line when abnormal power is detected, but turns on the AC power line when it detects that the power is stable. At this time, the smart power controller 1 switches so that AC power is supplied based on the zero potential point to prevent inrush power when restarting.

In addition, the smart power controller (1) prevents damage due to inrush by unconditionally starting at 0° after several tens of ms even if surge or peak voltage is introduced from the input power.

The smart power controller (1) is a power supply device that supplies power to the air circulator (4) and is installed integrally with the air circulator (4), or is connected to the air circulator (4) and/or the power supply device of the air circulator (4). It can be installed in a separate form.

Such a smart power controller 1 will be described in detail with reference to FIGS. 2 to 5.

FIG. 2 is a circuit diagram showing a smart power controller, and FIG. 3 is a block diagram showing the control unit of FIG. 2.

Referring to FIGS. 2 and 3, the smart power controller 1 includes a control unit 10 that cuts off power when overvoltage is detected, an input unit that inputs AC power, and an output unit that outputs AC power. , a switching unit 60 that switches and energizes the power under the control of the control unit 10, a smoothing unit 20 that smoothes the AC power, a voltage detection unit 70 that outputs the input voltage and a reference voltage, and a timer ( 150) It may include a setting unit 30 that sets the interval, and a first clamping unit 40 and a second clamping unit 50 that clamp the current level.

The input and output are connected to the AC power line. That is, in the present invention, the smart power controller (1) is characterized by detecting abnormal power of the AC power in the AC power line that supplies power to the air circulator (4) and cutting off the power.

The smoothing unit 20 is provided with a plurality of resistors and a smoothing capacitor connected in parallel to the input unit (Input) to stabilize the input voltage input through the input unit (Input) and supply it to the control unit 10. The power supplied from the smoothing unit 20 is input to the power supply pin of the control unit 10 and is turned on.

The switching unit 60 cuts off or energizes AC power under the control of the control unit 10. For example, when the control unit 10 detects an abnormal power source (e.g., overvoltage, surge voltage), the switching unit 60 is turned off by the control signal to switch between the input unit and the output unit. Shut off the power line.

Here, the switching unit 60 may include a first switching element (Q1) and a second switching element (Q2). The first switching element (Q1) and the second switching element (Q2) are turned on or off by a control line connected to the drive pin of the control unit 10. Here, the base of the first switching element (Q1) is connected to the control unit 10, the diode is connected to the input terminal in the forward direction to the input side, and the second switching element (Q2) has the input terminal connected in the forward direction to the output side (Output). It may be an IGBT connected to . Here, the input terminals of the first switching element (Q1) and the second switching element (Q2) are connected to the first clamping unit (40) and the second clamping unit (50).

The first clamping unit 40 and the second clamping unit 50 include resistors (RCR1, RCE2) and capacitors (CRC1, CRC2) and clamp the current at a set level. In addition, the first clamping unit 40 and the second clamping unit 50 may include a plurality of resistors that are respectively connected to the input pin and output pin of the control unit 10 to divide the voltage. That is, resistors Rin1, Rin2, and Ron3 are installed on the input pin of the control unit 10, and Rout1, Rout2, and Rout3 are installed on the line connected to the output pin.

The first clamping part 40 and the second clamping part 50 are used to maintain a waveform for detecting a zero-crossing point where the AC phase angle is 0 in the AC sine waveform.

The voltage detection unit 70 may include a plurality of distribution resistors (Rsns1, Rsns2, and Rsns3) connected in series to distribute the input voltage below a set level, and a reference resistor (Rsref) that generates a reference voltage.

The reference resistor (Rsref) is branched from the power line to which the distribution resistors (Rsns1, Rsns2, and Rsns3) are connected and installed on the power line connected to the comparator pin of the control unit 10.

Distribution resistors (Rsns1, Rsns2, Rsns3) are connected to the sensing pin of the control unit 10.

Therefore, the voltage detection unit 70 outputs the detection voltage and the reference voltage through the sensing pin and the comparator pin, respectively, and the control unit 10 can detect the overvoltage by calculating the difference.

The setting unit 30 includes a first external capacitor (Ct) connected between the timer pin and the GND pin of the control unit 10, and a second external capacitor (Csref) connected to the line from the voltage sensing unit 70 to the GND pin. ) may include. Among them, the first external capacitor (Ct) is a delay circuit, for example, sequentially rises and falls between 0.3 and 3.7 V by the pull-up current and pull-down current of the control unit 10, and is used for calculating the timer coefficient (e.g. For example, it provides a delay (time constant) value of 47pF ± 20% required for counting the time interval between starting or restarting from the zero potential point.

For example, when an abnormal voltage (overvoltage) is detected in the AC power input from the input unit, the control unit 10 turns the power on at the point when the phase angle changes from positive to negative and from negative to positive based on the zero potential. It protects the connected air circulator (4) by blocking, and when the voltage stabilizes, it restarts at the AC phase angle O° (zero potential point or zero-crossing point) and always synchronizes when the voltage on both ends of the smart power controller or power supply is 0. Therefore, the inrush current can be minimized.

Here, the control unit 10 includes a zero potential detection module 110 that detects a zero potential, a switching driver 120 that controls the switching unit 60, an abnormal voltage detection module 130 that detects an abnormal voltage, and a zero voltage detection module 130 that detects an abnormal voltage. It includes a timer 150 that calculates the above and a driving module to which power is input.

The zero potential detection module 110 detects the zero potential in the waveform clamped by the first clamping unit 40 and the second clamping unit 50 through the input pin and output pin. Here, the zero potential detection module 110 detects the positive phase in the sine waveform input through a plurality of resistors (Rin1, Rin2, Rin3) connected in series through an input pin, and a plurality of resistances (Rin1, Rin2, Rin3) connected in series through an output pin. The negative phase of the input sine wave can be detected through the resistances (Rout1, Rout2, Rout3).

Here, the plurality of resistors (Rin1, Rin2, Rin3, Rout1, Rout2, Rout3) are external resistances of the input pin/output pin and are preferably selected in the range of 2.2MΩ to 3.3MΩ.

For example, if the current clamping level exceeds 1mA in a power line of AC 90~400V, 50Hz~60Hz, a voltage of 2kV or more may be generated. To accommodate such overvoltage, it is desirable to set the external resistance value of the input pin/output pin to 2.2MΩ ~ 3.3MΩ.

The switching driver 120 selectively or simultaneously turns on the first switching unit (not numbered) and the second switching unit (not numbered) based on the zero potential detected by the zero potential detection module 110. Or turn it off. In addition, the switching driver 120 turns off the switching unit 60 when an abnormal voltage is detected according to the detection result of the abnormal voltage detection module 130, and when a normal voltage is detected, the zero potential detection signal of the zero potential detection module 110 Accordingly, the switching unit 60 is driven to energize the connected AC power line.

The abnormal voltage detection module 130 detects an abnormal voltage. Here, the abnormal voltage detection module 130 compares the input voltage input through the voltage detection unit 70 and the reference voltage and generates an abnormal voltage detection signal when the difference exceeds a set range (for example, ±1.5V). Print out.

That is, the abnormal voltage detection module 130 calculates the presence or absence of an abnormal voltage by calculating the difference between the detected voltage input through the voltage detection unit 70 and the reference voltage input through the comparator pin.

At this time, the sensing voltage is connected to the input unit (Input) and the distributed voltage through a plurality of resistors (RSNS1, RSNS2, RSNS3) connected in series is divided with the power line to which the reference resistor (RSREF) is connected and input to the sensing pin. .

The timer 150 calculates a timer 150 coefficient for calculating the zero potential. For example, the timer 150 starts operation when the input voltage is within a set voltage level, and this also applies to the initial power-on state and the recovery state after overvoltage. Here, the total duration of the timer 150 may be determined by the external capacitor (Csref) of the setting unit 30.

For example, timer 150 includes an internal pull-down current of 9uA followed by a pull-up current of 9uA, which can sequentially increase an external capacitor (Csref) between 3.7V and 0.3V and back to 3.7V. This continues for 1024 cycles to generate a total timer 150 coefficient of 0.8 seconds/nF, and the timer 150 equation is shown in Equation 1 below.

[Equation 1]

Interval(sec) = cycles x Vramp x 2 x CT (F) / Iramp

= 1024 x 3.4 x 2 x CT (F) / 9u = 0.774 sec/nF

Here, the timer 150 may count or initialize a set time period according to the detection result of the abnormal voltage detection module 130 and then restart.

For example, if an abnormal voltage is generated in the abnormal voltage detection module 130 during the interval of the timer 150, the timer 150 initializes the current elapsed time in the set time period and starts counting again. This reset of the timer 150 interval is performed until the voltage stabilizes to a starting voltage within a set level.

The present invention includes the above-described configuration, and hereinafter, a control method of the smart power controller (1) with a zero-line start function that solves all problems of the input power according to the present invention achieved through the above-described configuration will be described. do.

Figure 4 is a flowchart showing a control method of a smart power controller, and Figure 5 is a graph showing waveforms according to an embodiment of the present invention.

Referring to Figures 4 and 5, the present invention includes a step S110 for turning on, a step S120 for detecting and switching a zero potential, a step S130 for detecting an abnormal voltage, a step S140 for turning off when an abnormal voltage is detected, and a timer (150). ) includes a step S150 of initializing and resetting, a step S160 of detecting whether the abnormal power is normalized, and a step S170 of detecting and switching the zero potential.

Step S110 is a step in which the control unit 10 is turned on by the input voltage. The control unit 10 receives alternating current (AC) power input through an input unit (Input) connected to the AC power line through the diode (Dvcc) of the smoothing unit 20, a plurality of resistors (RVCC1 to RVCC3), and a capacitor (CVCC). It turns on when power is input through the power supply pin.

In step S120, the control unit 10 is synchronized with the first detected zero potential point (see a in FIG. 5) after the time period (CT) according to the set timer 150 coefficient has elapsed and generates a drive signal (DRV) through the drive pin. This is the step of outputting and driving the first switching unit (not assigned a drawing number) and the second switching unit (not assigned a drawing number). Therefore, the smart power controller (1) energizes the AC power line to supply power to the air circulator (4).

Step S130 is a step in which the control unit 10 detects an abnormal voltage. Here, the abnormal voltage detection module 130 detects the abnormal voltage when the difference between the detected voltage of the voltage detection unit 70 and the set reference voltage exceeds the set range. This occurs when the peak value in the VLNE waveform of FIG. 5 exceeds the reference value OVP+VE and the reference value OVP+VE in the VLOAD waveform. Here, the VLINE waveform is a graph measuring the waveform of the AC power line, and the VLOAD waveform is the output side voltage, that is, input through external resistors (Rin1, Rin2, Rin3, Rout1, Rout2, Rout3) connected to the input pin/output pin of the control unit. Corresponds to the waveform of the signal.

The VCC waveform is the waveform input to the power supply pin of the control unit 10, and the DRV is the first switching unit (not numbered) and the second switching unit (not numbered) output from the drive pin by the switching driver. ) is the driving signal. CT is a waveform that roughly shows the time interval calculated from the timer.

Step S140 is a step where the control unit 10 turns off the AC power line when an abnormal voltage is detected. When an abnormal voltage is detected, the control unit 10 turns off the first switching unit (not numbered) and the second switching unit (not numbered) to block the AC power line (b or c in Figure 5). reference).

Here, the switching driver 120 can turn off the first switching unit (not numbered) and the second switching unit (not numbered) based on the zero potential point of the zero potential detection module 110.

For example, when the switching driver 120 detects an abnormal voltage (e.g., overvoltage), the positive phase overvoltage produces a falling edge (EDGE) downward from the peak value, and the negative phase overvoltage produces an upward edge. Turn it off at EDGE.

Step S150 is a step in which the control unit 10 initializes the counting of the timer 150. The control unit 10 initializes and resets the time interval set based on the time when an abnormal voltage is detected. And the timer 150 counts the time interval calculated by the reset timer coefficient.

Step S160 is a step in which the control unit 10 detects whether the abnormal voltage is normalized while counting the time interval at which the timer 150 is reset. The control unit 10 detects that the abnormal voltage has normalized if the difference between the detection voltage detected through the abnormal voltage detection module 130 and the reference voltage is maintained within the set range for a time period within the reset time interval. do.

Alternatively, if an abnormal voltage is detected while counting the reset time interval, the control unit 10 re-processes step S150. This process can be repeated until the input voltage is normalized.

If normalization is maintained until the counting of the reset time interval is completed by the control unit 10, step S170 is the first step to be turned on at the point when the zero potential changes from the positive (+) phase or the zero potential to the negative (-) phase. This is the step of turning on the switching unit (not numbered) and the second switching unit (not numbered).

Therefore, the present invention can synchronize the AC switch based on the zero potential. In addition, the present invention can be turned on in the positive rising section of the zero potential point when the timer 150 interval calculated by the timer 150 coefficient reset after the occurrence of overvoltage is completed. At this time, if an abnormal voltage occurs during the reset time interval, the time interval is reset again and waits until the next full cycle returns to the normalized voltage.

That is, in the present invention, when an abnormal voltage occurs, the time progressed to date among the set time intervals is initialized and counting begins again. This resetting of the time interval is performed until the voltage stabilizes to a starting voltage within the set level.

Therefore, in the present invention, when the AC power voltage stabilizes again to a safe level, the load is reconnected and operates normally, thereby blocking the LED afterimage effect caused by low voltage due to the potential difference of the electronic switch.

In addition, the present invention detects the voltage of the AC power line and can directly cut off or energize, so it is possible to block standby power, and even if surge or peak voltage flows into the input, it unconditionally starts at 0° after several tens of ms to prevent rush. can do.

In addition, the present invention, unlike the existing method of configuring a protection circuit using a fuse, surge observer, surge protector, and large-capacity varistor, allows recovery and prevents product defects caused by sparks, damage to circuit parts, and input peaks. can

In the above, preferred embodiments of the present invention have been shown and described, but the present invention is not limited to the specific embodiments described above, and can be used in the technical field to which the invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

1: Smart power controller
4: Air circulator
10: control unit
20: smooth part
30: Setting section
40: first clamping part
50: second clamping part
60: switching unit
70: voltage detection unit
110: Zero potential detection module
120: switching driver
130: Abnormal voltage detection module
140: driving module
150: Timer

Claims (8)

A smart power controller (1) that detects AC power abnormalities in the AC power line connected to the power supply device and controls the energization of the power line; Including,
Smart power controller (1)
An input unit where AC power is input and an output unit which outputs AC power,
A switching unit 60 that supplies power between an input unit and an output unit (Output);
A voltage detection unit 70 that outputs an input voltage and a reference voltage; and
The difference between the reference voltage and the input voltage of the voltage detection unit 70 is calculated, and if it exceeds the set range, the switching unit 60 is controlled to cut off the power. If the power is detected to be stable after the power is cut off, the set timer is set. A control unit 10 that initializes and resets the time interval of 150, counts the reset time interval, and then turns on the switching unit 60 based on the zero potential point of the AC sine wave to control the power supply. do,
The control unit 10 is
A zero potential detection module 110 that detects a zero potential;
An abnormal voltage detection module 130 that detects an abnormal voltage by calculating the difference between the detection voltage and the reference voltage;
A timer 150 that resets the set time interval when an abnormal voltage is detected, and resets and counts the time interval when the power is stabilized; and
A switching driver 120 that turns on the switching unit based on the zero potential point according to the time interval calculated by the timer 150 and turns off the switching unit 60 when the abnormal voltage detection module 130 detects an abnormal voltage; Including,
The voltage detection unit 70 is
A plurality of distribution resistors (Rsns1, Rsns2, Rsns3) are connected in series to distribute the input voltage below the set level, and are installed on a power line branched from the power line to which the plurality of distribution resistors (Rsns1, Rsns2, Rsns3) are connected. Containing a reference resistance (Rsref) that generates a voltage; A power supply device with a smart power controller that solves all problems occurring at the input.
delete In claim 1, the switching unit 60 is
Equipped with a first switching element (Q1) and a second switching element (Q2),
The base of the first switching element (Q1) is connected to the control unit 10, the diode is connected to the input terminal in the forward direction toward the input side, and the second switching element (Q2) has the input terminal connected in the forward direction to the output side. being connected; A power supply device with a smart power controller that solves all problems occurring at the input.
delete In claim 1, the setting unit 30 is
A first external capacitor (Ct) connected to the timer pin connected to the timer 150 of the control unit 10, and a power line extending from the voltage detection unit 70 to the switching unit 60 of the control unit 10 are installed. Includes a second external capacitor (Csref),
The first external capacitor (Ct) is a delay circuit that sequentially rises and falls between 0.3 and 3.7 V by the pull-up current and pull-down current of the control unit 10, and is necessary for starting or restarting from the zero potential point when calculating the coefficient of the timer 150. providing a delay (time constant) value of 47pF±20%; A power supply device with a smart power controller that solves all problems occurring at the input.
In claim 1, the switching driver 120 is
When an abnormal voltage is detected by the abnormal voltage detection module 130, the power supply is supplied at the point when the phase angle changes from positive (+) to negative (-) or from negative (-) to positive (+) based on the zero potential (Z). blocking the voltage, and when the voltage is stabilized and changes to positive or negative phase at the zero potential point of the AC power supply, driving the switching unit 60 to energize the power; A power supply device with a smart power controller that solves all problems occurring at the input.
In claim 1,
The zero potential detection module 110 detects the positive phase in a sine waveform input through a plurality of resistors (Rin1, Rin2, Rin3) connected in series through an input pin, and a plurality of resistors (Rin1, Rin2, Rin3) connected in series through an output pin. Detects the negative phase in the sine wave input through (Rout1, Rout2, Rout3),
A plurality of resistors (Rin1, Rin2, Rin3, Rout1, Rout2, Rout3) are selected from the range of 2.2MΩ to 3.3MΩ; A power supply device with a smart power controller that solves all problems occurring at the input.
A power supply device with a built-in smart power controller of claim 1, and an air circulator receiving power from the power supply device; An air circulator using a power supply with a smart power controller that solves all problems arising from inputs including.

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