CN208846637U - Power source charges control circuit, transducer air conditioning control circuit and transducer air conditioning - Google Patents
Power source charges control circuit, transducer air conditioning control circuit and transducer air conditioning Download PDFInfo
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- CN208846637U CN208846637U CN201821564408.1U CN201821564408U CN208846637U CN 208846637 U CN208846637 U CN 208846637U CN 201821564408 U CN201821564408 U CN 201821564408U CN 208846637 U CN208846637 U CN 208846637U
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Abstract
The utility model provides a kind of power source charges control circuit, transducer air conditioning control circuit and transducer air conditioning, by using first switch module and second switch module in parallel on AC charging circuit, first switch module is opened based on zero cross signal to charge to electrolytic capacitor, the first switch module is closed after charging is full, and opens second switch module and subsequent DC bus-bar voltage is powered load.It may be implemented to use the current-limiting resistance of smaller resistance value in compared with the prior art, so that practical obtain big charging current, so that charging rate increases, and the power consumption of the current-limiting resistance wants volume that is small, thus can reduce current-limiting resistance compared with the prior art.
Description
Technical field
The utility model relates to frequency control field more particularly to a kind of power source charges control circuits, transducer air conditioning control
Circuit and transducer air conditioning processed.
Background technique
It is applied to high-power power supply AC/DC (ac/dc) power inverter at present, as being applied to transducer air conditioning
The power inverter of the high direct voltage power supply (more than 300V) of compressor drive circuit, will use the electrolysis of large capacity in DC side
Capacitor (more than 400uF) does smothing filtering, needs to charge to these electrolytic capacitors when powering on, only when electrolytic capacitor fills
Subsequent power inverter could work normally after full electricity.Since electrolytic capacitor capacity is big, filled when plugging in meeting when powering on
Electric current can be very big, thus needs to increase current-limiting circuit, and existing the relevant technologies generally use PTC or current-limiting resistance+relay
The mode of device carries out buffering charging to high-voltage electrolytic capacitor, generates in large inrush current defective loop when preventing from powering on or being switched on
Device, since power device current limliting capacity main in circuit is limited (such as relay, rectifier bridge, protective tube), and common machine
The time of closing contact of tool formula relay is uncertain, therefore can not be dynamic in the fixed position of alternating current using relay control charging
Make, if the attracting electric relay just at alternating current peak value, the dash current of generation is maximum, it is therefore necessary to biggish using resistance value
PTC or current-limiting resistance, it is partially long to result in the charging time in this way, when circuit needs relatively long waiting from powering on to operating normally
Between.Above content is only used for auxiliary and understands the technical solution of the utility model, does not mean the recognition that the foregoing is prior art.
Utility model content
The main purpose of the utility model is to provide a kind of power source charges control circuits, it is intended to solve due to existing electricity
The too long time for causing entire circuit normal work to need opposite waiting relatively long in source charging circuit charging time when powering on asks
Topic.
To achieve the above object, a kind of power source charges control circuit provided by the utility model, power source charges control circuit
Including rectification module, electrolytic capacitor, load, MCU, zero crossing detection module, first switch module and second switch module；
Rectification module input terminal connects AC power source, and rectification module output end connects DC bus, electrolytic capacitor and direct current
Bus is in parallel, and the rectified module output ripple direct current of alternating current charges to electrolytic capacitor and exports flat to constitute charge circuit
Sliding direct current, to be connected to the load supplying on DC bus；
Zero crossing detection module is connected in parallel on exchange input side, for detecting the zero cross signal of AC power source；
It is connected on charge circuit after first switch module and second switch wired in parallel, wherein first switch module is opened
It is higher than the switching speed of second switch module to close speed；
MCU be used for according to zero passage detection signal, first controlled when powering on first switch module conducting with to electrolytic capacitor into
Row charging, and disconnect in rear control first switch module and being connected with second switch module, so that the voltage of DC bus is to negative
The work of load is powered.
Preferably, power source charges control circuit further includes voltage detection module；
Voltage detection module is connected in parallel on DC bus, for detecting the voltage value of DC bus；
MCU controls the conducting of first switch module first according to voltage value when powering on to charge to electrolytic capacitor, and
The disconnection of control first switch module is connected with second switch module afterwards.
Preferably, first switch module includes first switch unit and the first driving unit；
First control terminal of first switch unit connects the first output end of the first driving unit, and the of first switch unit
Two control terminals connect the second output terminal of the first driving unit, and first switch unit is connected on charge circuit；
The control terminal of first driving unit connects MCU, and MCU output control signal controls the first driving unit to drive first
The on-off of switch unit.
Preferably, first switch unit include first resistor, it is first silicon-controlled；
One end of first resistor is one end of first switch unit, the other end of first resistor and first silicon-controlled second
Anode connects the first control terminal with first switch unit altogether, and the first silicon-controlled first anode is the another of first switch unit
End, the first silicon-controlled control terminal are the second control terminal of the first driving unit.
Preferably, the first driving unit includes second resistance, 3rd resistor and the first optocoupler；
One end of second resistance is first the first output end of driving unit, and the other end of second resistance connects the first optocoupler
The cathode of light emitting diode, the anode of the light emitting diode of the first optocoupler are the second output terminal of the first driving unit, the first light
The control terminal of the current collection of the triode of coupling extremely the first driving unit, the emitter ground connection of the triode of the first optocoupler.
Preferably, second switch module includes the first relay；
The both ends of the switch of first relay are the both ends of second switch module, one end connection of the coil of the first relay
DC power anode, the other end of the coil of the first relay are the control terminal of second switch module.
Preferably, power source charges control circuit further includes PFC module；
PFC module is connected between rectification module and electrolytic capacitor, carries out function to the Rectified alternating current of rectification module output
Rate factor correction.
Preferably, power source charges control circuit further includes PFC drive module；
PFC drive module output end connects PFC module, and PFC drive module input terminal connects MCU, to drive in the case where MCU is controlled
Dynamic PFC module work.
Preferably, power source charges control circuit further includes switch drive module；
Switch module drive module output end connects the control terminal of second switch module, switch module drive module input terminal
Connect MCU.
To achieve the above object, the utility model also provides a kind of transducer air conditioning control circuit, the transducer air conditioning control
Circuit processed includes above-mentioned power source charges control circuit.
To achieve the above object, the utility model also provides a kind of transducer air conditioning, and transducer air conditioning includes above-mentioned change
Frequency air conditioner control circuit.
The frequency conversion control circuit of the utility model, by AC charging circuit using in parallel first switch module and
Second switch module opens first switch module based on zero cross signal and charges to electrolytic capacitor, closed after charging is full this first
Switch module, and open second switch module and subsequent DC bus-bar voltage is powered load.It may be implemented to use
Small current-limiting resistance is wanted compared with the prior art, so that practical obtain big charging current, so that charging rate increases, and the limit
The power consumption of leakage resistance is relatively existing to want volume that is small, thus can reduce current-limiting resistance.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the utility model power source charges control circuit first embodiment；
Fig. 2 is zero passage detection waveform diagram in first embodiment；
Fig. 3 is the electrical block diagram of the utility model power source charges control circuit second embodiment；
Fig. 4 is the electrical block diagram of the utility model transducer air conditioning control circuit.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
The utility model proposes a kind of power source charges control circuits, and the control circuit is by converting alternating current to direct current height
Piezoelectricity, as inputting the alternating current for being 220V, the direct current of output can reach 300V or more, to need high current
Load A0 power supply, for example IPM (intelligent power module) power supply of driving compressor, or the IPM module to drive direct current generator
Power supply etc., the basic circuit structure figure of the power source charges control circuit of the present embodiment is as shown in Figure 1, the power source charges control circuit
Including rectification module 60, electrolytic capacitor E1 and E2, load A0, MCU30, zero crossing detection module 50, first switch module 10 and the
Two switch modules 20；In order to export big electric current, electrolytic capacitor capacity here is larger generally in 400uF or more.
60 input terminal of rectification module connect AC power source, 60 output end of rectification module connect DC bus, electrolytic capacitor with
DC bus is in parallel, and the rectified 60 output ripple direct current of module of alternating current is to constitute charge circuit, simultaneously to electrolytic capacitor charging
Output smoothing direct current, for the load A0 power supply being connected on DC bus；Rectification module 60 can be by rectifier bridge stack or divide
The rectification circuit of vertical element composition, is rectifier bridge stack in Fig. 1, the charge circuit in Fig. 1 here refer to alternating current from firewire L or
Zero curve N sets out, and after being input to rectification module 60, exports what direct current constituted electrolytic capacitor E1 and E2 charging from rectification module 60
Circuit.
Zero crossing detection module 50 is connected in parallel on exchange input side, for detecting the zero cross signal of AC power source；
It is connected on charge circuit after 20 parallel connection of first switch module 10 and second switch module, wherein first switch module
10 switching speed is higher than the switching speed of second switch module 20；
MCU30 is used to first control the conducting of first switch module 10 when powering on to electrolysis electricity according to zero passage detection signal
Appearance charges, and disconnects in rear control first switch module 10 and connecting with second switch module 20, to control DC bus
The work of voltage against load A0 is powered.
Since the commencing speed of first switch module 10 is higher than the switching speed of second switch module 20, be conducive in zero passage
When control first switch module 10 it is accurately open-minded in zero-acrross ing moment, as first switch module 10 can be used it is silicon-controlled or switch
The high power device of the switching speeds such as pipe, and second switch module 20 then can be used the switching speeds such as relay it is low can excessive electricity
The Mechanical switching devices of stream are connected since MCU30 accurately controls first switch module 10 in zero passage point moment according to zero cross signal
It first charges to electrolytic capacitor, the alternating voltage instantaneous value of near zero-crossing point is small at this time, therefore can adopt in first switch module 10
It, again can be real in the case where meeting the requirements the current-limiting resistance consumption heating with small current-limiting resistance is wanted in compared with the prior art
Now quickly charge to electrolytic capacitor.It is subsequent i.e. controllable after by first switch module 10 to electrolytic capacitor charging complete
It is disconnected, then to control second switch module 20 constantly on, realizes AC power source through second switch module 20 to subsequent electricity with this
Road power supply, is realized when powering on this to electrolytic capacitor quick charge.Above-mentioned control first switch module 10 can be by simply prolonging
When mode realize that, to electrolytic capacitor charging complete, delay time can be in previous experiments according to the size of electrolytic capacitor and
Current-limiting resistance in one switch module 10 determines.
Further, which further includes voltage detection module B0, and voltage detection module B0 is connected in parallel on
On DC bus, for detecting the voltage value of DC bus；Relatively above-mentioned MCU30 first controls the conducting of first switch module 10 through prolonging
Charging of the Shi Shixian to electrolytic capacitor, MCU30 can be directly according to the voltage value size elder generation control switch module of DC bus here
10 conducting, its voltage value reach electrolytic capacitor it is fully charged when corresponding preset voltage value when, i.e., control switch module 10 disconnect,
The accurate charging complete to electrolytic capacitor is realized with this.
Specifically, first switch module 10 includes first switch unit 11 and the first driving unit 12；
First control terminal of first switch unit 11 connects the first output end of the first driving unit 12, first switch unit
11 the second control terminal connects the second output terminal of the first driving unit 12, and first switch unit 11 is connected on charge circuit；
The control terminal of first driving unit 12 connects MCU30, and MCU30 output control signal controls the first driving unit 12
Drive the on-off of first switch unit 11.
Further, which includes first resistor R11, the first silicon-controlled TR1；
One end of first resistor R11 is one end of first switch unit 11, and the other end of first resistor R11 and first is controllably
The second plate of silicon TR1 connects the first control terminal with first switch unit 11 altogether, and the first anode of the first silicon-controlled TR1 is first
The other end of switch unit 11, the control terminal of the first silicon-controlled TR1 are the second control terminal of the first driving unit 12.
Further, which includes second resistance R12,3rd resistor R13 and the first optocoupler IC2；
One end of second resistance R12 is 12 first output end of the first driving unit, the other end connection the of second resistance R12
One end of the bilateral diode of one optocoupler IC2, the other end of the bilateral diode of the first optocoupler IC2 are the first driving unit 12
Second output terminal, one end of the anode connection 3rd resistor R13 of the light emitting diode of the first optocoupler IC2,3rd resistor R13's is another
One end is the control terminal of the first driving unit 12, the minus earth of the light emitting diode of the first optocoupler IC2.
Further, which includes the first relay RY1；
The both ends of the switch of first relay RY1 are the both ends of second switch module 20, the coil of the first relay RY1
One end connect DC power anode, the other end of the coil of the first relay RY1 is the control terminal of second switch module 20.
Zero crossing detection module 50 is mainly by the 4th resistance R4, the 5th resistance R5, optocoupler IC1, the 6th resistance R6, the 7th resistance
R7 and third transistor Q3 composition, alternating voltage is input to optocoupler IC1 by the 4th resistance R4 and the 5th resistance R5 partial pressure, at it
Outlet side exports zero cross signal, and through the 6th resistance R6, the 7th resistance R7 shaping, in third transistor Q3 collector outputting standard
Zero cross signal, zero cross signal waveform is as shown in Figure 2.
Rectification module 60 is mainly made of rectifier bridge stack BR1, and the alternating current of input is converted into Rectified alternating current.
DC voltage detection module B0 is in parallel with electrolytic capacitor E1 and E2, the voltage value for DC bus；Specifically, straight
Flowing voltage detection module B0, mainly the 8th resistance R14, the 9th resistance R15 and the tenth resistance R17 of antihypertensive effect are divided by
Pressure, the low pressure for finally obtaining representing DC voltage on the tenth resistance R17 are output to through the eleventh resistor R16 of metering function
In MCU30, capacitor C5 is played a filtering role.
Here load A0 is the load powered by above-mentioned DC bus-bar voltage, such as drive compressor IPM module and
The load such as compressor or direct current generator.
The working principle of this circuit is as follows: when powering on, the zero cross signal that MCU is detected according to zero crossing detection module,
Zero-acrross ing moment exports high level and drives the first optocoupler IC2 conducting by 3rd resistor R13, so that the first silicon-controlled TR1 is opened
Logical, AC power source back charges to electrolytic capacitor E1 and E2 through the first resistor R11 for current limliting is charged, controllably due to first
Silicon TR1 is open-minded in zero-acrross ing moment, thus the electric current for flowing through first resistor R11 is very small, with the increase of alternating voltage, electrolysis electricity
Holding increasing on E1 and E2 also with voltage, the voltage difference of the two determines the size of current for flowing through first resistor R11,
Due to being to open the first silicon-controlled TR1 in zero-acrross ing moment, so that the voltage difference of the two maintains lower value always, if first can
Control silicon TR1 be not it is open-minded in zero-acrross ing moment, such as in open-minded close at alternating voltage peak, the then pressure difference meeting on first resistor R11
It is very big, cause it is very high by the electric current of the resistance, thus power consumption increase it is very much, need using relatively powerful model and
Using larger resistance value.And when opening the first silicon-controlled TR1 using zero-acrross ing moment, the electric current for flowing through first resistor R11 is relatively small very
It is more, thus the lesser resistance of resistance value, relative increase electric current, than opening in non-zero-acrross ing moment due to the current-limiting resistance can also be used
Electric current increase and larger resistance value need to be used to reduce for power consumption, charging current will increase, thus the charging modes can be more
Accelerate speed.
It is worth noting that in first ac cycle of alternating voltage, since electrolytic capacitor E1 and E2 do not have at the beginning
There is voltage, thus from zero passage start time within the period, alternating voltage can be by first resistor R11 always to electrolytic capacitor E1
It charges with E2, in next ac cycle, although the first silicon-controlled TR1 is open-minded in zero-acrross ing moment, when opening
The time alternating voltage of beginning is also lower with the voltage on E2 than electrolytic capacitor E1, will not charge at this time to it, only alternating current
When pressure rises above the voltage on electrolytic capacitor E1 and E2, just start to the voltage charging on electrolytic capacitor E1 and E2, in this way
By several ac cycles, so that it may fully charged to electrolytic capacitor E1 and E2.
Further, power source charges control circuit further includes switch drive module 40；
40 output end of switch module drive module connects the control terminal of second switch module, the input of switch module drive module
End connection MCU30.The switch drive module 40 is mainly made of the second triode Q1 in figure, and input terminal connects MCU30, is led to
MCU30 output low and high level signal is crossed, control switch drive module 40 drives the switch state switching of second switch module 20.
Since the switching speed of first switch module 10 is higher than the switching speed of second switch module 20, be conducive in this way
Control first switch module 10 is accurately open-minded in zero-acrross ing moment when zero passage, and the switching device of first switch module 10 is in addition to adopting at this time
, can also be using the fast switching devices of switching tube etc with the as described above first silicon-controlled TR1, and second switch module 20
Due to not being strict with to time point is opened for after electrolytic capacitor E1 and E2 charging complete, thus can be using opening
The logical lower device of speed such as relay.
Using the scheme of the present embodiment, it may be implemented to use the current-limiting resistance of smaller resistance value in compared with the prior art, thus
Practical to obtain big charging current, so that charging rate increases, and the power consumption of the current-limiting resistance is relatively existing wants small, thus
It can reduce the volume of current-limiting resistance.
Further, the utility model power source charges control circuit first embodiment, the utility model power source charges are based on
In control circuit second embodiment, as shown in figure 3, frequency conversion control circuit further includes PFC module 70, PFC module 70 is connected to whole
Between flow module 60 and electrolytic capacitor E1 and E2, Active PFC is carried out to the Rectified alternating current of rectification module output.Such as Fig. 1
Shown, which is mainly made of inductor L1, IGBT pipe Q2 and fast recovery diode D2, and can further comprise
PFC drive module 90 controls PFC drive module 90 by MCU30 and switches over to the switch state of IGBT pipe Q2, to realize function
Rate factor correction.
The utility model also proposes a kind of transducer air conditioning control circuit, as shown in figure 4, the transducer air conditioning control circuit
Including above-mentioned power source charges control circuit, loading A0 at this time is specially IPM (intelligent power module) module for driving compressor
And frequency-changeable compressor.
By the transducer air conditioning control circuit of the utility model, relatively existing transducer air conditioning control circuit can be real
It quickly charges to electrolytic capacitor when now powering on, and reduces the power consumption and volume of current-limiting resistance, be conducive to transducer air conditioning control electricity
Rapid operation after the electricity of road.
The utility model also proposes a kind of transducer air conditioning, including above-mentioned transducer air conditioning control circuit.
In the description of this specification, the description meaning of reference term " first embodiment ", " second embodiment ", " example " etc.
Refer to that specific method, device or feature described in conjunction with this embodiment or example are contained at least one implementation of the utility model
In example or example.In the present specification, schematic expression of the above terms are necessarily directed to identical embodiment or show
Example.Moreover, specific features, method, apparatus or the feature of description can be in any one or more of the embodiments or examples to close
Suitable mode combines.In addition, without conflicting with each other, those skilled in the art can will be described in this specification
The feature of different embodiments or examples and different embodiments or examples is combined.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of power source charges control circuit, which is characterized in that the power source charges control circuit includes rectification module, electrolysis electricity
Appearance, load, MCU, zero crossing detection module, first switch module and second switch module；
The rectification module input terminal connects AC power source, and the rectification module output end connects DC bus, the electrolysis electricity
Hold it is in parallel with the DC bus, the alternating current through the rectification module output ripple direct current to constitute charge circuit, to
The electrolytic capacitor charging and output smoothing direct current, for the load supplying being connected on the DC bus；
The zero crossing detection module is connected in parallel on exchange input side, for detecting the zero cross signal of AC power source；
It is connected on the charge circuit after the first switch module and the second switch wired in parallel, wherein described first
The switching speed of switch module is higher than the switching speed of the second switch module；
The MCU is used to first control the first switch module conducting when powering on to institute according to the zero passage detection signal
It states electrolytic capacitor to charge, and disconnects in the rear control first switch module and being connected with the second switch module, so that
The work for obtaining the voltage against load of the DC bus is powered.
2. power source charges control circuit as described in claim 1, which is characterized in that the power source charges control circuit further includes
Voltage detection module；
The voltage detection module is connected in parallel on the DC bus, for detecting the voltage value of the DC bus；
The MCU when powering on according to the voltage value first control first switch module conducting with to the electrolytic capacitor into
Row charging, and disconnect in the rear control first switch module and being connected with the second switch module.
3. power source charges control circuit as described in claim 1, which is characterized in that the first switch module is opened including first
Close unit and the first driving unit；
First control terminal of the first switch unit connects the first output end of first driving unit, the first switch
Second control terminal of unit connects the second output terminal of first driving unit, and the first switch unit is connected on described fill
On electrical circuit；
The control terminal of first driving unit connects the MCU, and MCU output control signal control first driving is single
Member drives the on-off of the first switch unit.
4. power source charges control circuit as claimed in claim 3, which is characterized in that the first switch unit includes the first electricity
It is resistance, first silicon-controlled；
One end of the first resistor is one end of the first switch unit, the other end of the first resistor and described first
Silicon-controlled second plate is connected to the first control terminal of the first switch unit altogether, and the described first silicon-controlled first anode is
The other end of the first switch unit, the described first silicon-controlled control terminal are the second control of first driving unit
End.
5. power source charges control circuit as claimed in claim 3, which is characterized in that first driving unit includes the second electricity
Resistance, 3rd resistor and the first optocoupler；
One end of the second resistance is first output end of the first driving unit, and the other end of the second resistance connects institute
One end of the bilateral diode of the first optocoupler is stated, the other end of the bilateral diode of first optocoupler is that first driving is single
The second output terminal of member, the anode of the light emitting diode of first optocoupler connect one end of the 3rd resistor, the third
The other end of resistance is the control terminal of first driving unit, the cathode of the light emitting diode of the triode of first optocoupler
Ground connection.
6. power source charges control circuit as described in claim 1, which is characterized in that the second switch module include first after
Electric appliance；
The both ends of the switch of first relay are the both ends of the second switch module, the coil of first relay
One end connects DC power anode, and the other end of the coil of first relay is the control terminal of the second switch module.
7. power source charges control circuit as described in claim 1, which is characterized in that the power source charges control circuit further includes
PFC module；
The PFC module is connected between the rectification module and the electrolytic capacitor, the pulsating direct current to rectification module output
Electricity carries out Active PFC.
8. power source charges control circuit as claimed in claim 6, which is characterized in that the power source charges control circuit further includes
Switch drive module；
The switch module drive module output end connects the control terminal of the second switch module, and the switch module drives mould
Block input terminal connects the MCU.
9. a kind of transducer air conditioning control circuit, which is characterized in that the transducer air conditioning control circuit includes that power such as requires 1-8
Power source charges control circuit described in any one.
10. a kind of transducer air conditioning, which is characterized in that the transducer air conditioning includes the transducer air conditioning as described in weighing and require 9
Control circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564408.1U CN208846637U (en) | 2018-09-21 | 2018-09-21 | Power source charges control circuit, transducer air conditioning control circuit and transducer air conditioning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564408.1U CN208846637U (en) | 2018-09-21 | 2018-09-21 | Power source charges control circuit, transducer air conditioning control circuit and transducer air conditioning |
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| CN208846637U true CN208846637U (en) | 2019-05-10 |
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| CN201821564408.1U Active CN208846637U (en) | 2018-09-21 | 2018-09-21 | Power source charges control circuit, transducer air conditioning control circuit and transducer air conditioning |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190761A (en) * | 2019-06-14 | 2019-08-30 | 矽力杰半导体技术(杭州)有限公司 | AC-DC conversion circuit and method |
| CN111750509A (en) * | 2020-05-15 | 2020-10-09 | 海信（山东）空调有限公司 | Zero-crossing detection circuit and air conditioner |
| CN112737360A (en) * | 2020-12-29 | 2021-04-30 | 上海骄成机电设备有限公司 | Rectifying circuit and power supply |
| CN112984739A (en) * | 2021-04-08 | 2021-06-18 | 珠海格力电器股份有限公司 | Air conditioner control method, air conditioner control device, air conditioner and storage medium |
| US20210305908A1 (en) * | 2020-03-30 | 2021-09-30 | Panasonic Intellectual Property Management Co., Ltd. | Switching device, switching power supply apparatus, and vehicle |
| CN114001439A (en) * | 2021-11-30 | 2022-02-01 | 海信（广东）空调有限公司 | Air conditioner and control device and method thereof |
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2018
- 2018-09-21 CN CN201821564408.1U patent/CN208846637U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190761A (en) * | 2019-06-14 | 2019-08-30 | 矽力杰半导体技术(杭州)有限公司 | AC-DC conversion circuit and method |
| US20210305908A1 (en) * | 2020-03-30 | 2021-09-30 | Panasonic Intellectual Property Management Co., Ltd. | Switching device, switching power supply apparatus, and vehicle |
| US11799390B2 (en) * | 2020-03-30 | 2023-10-24 | Panasonic Intellectual Property Management Co., Ltd. | Switching device, switching power supply apparatus, and vehicle having zero-crossing point detection time correction |
| CN111750509A (en) * | 2020-05-15 | 2020-10-09 | 海信（山东）空调有限公司 | Zero-crossing detection circuit and air conditioner |
| CN112737360A (en) * | 2020-12-29 | 2021-04-30 | 上海骄成机电设备有限公司 | Rectifying circuit and power supply |
| CN112737360B (en) * | 2020-12-29 | 2022-07-05 | 上海骄成超声波技术股份有限公司 | Rectifying circuit and power supply |
| CN112984739A (en) * | 2021-04-08 | 2021-06-18 | 珠海格力电器股份有限公司 | Air conditioner control method, air conditioner control device, air conditioner and storage medium |
| CN114001439A (en) * | 2021-11-30 | 2022-02-01 | 海信（广东）空调有限公司 | Air conditioner and control device and method thereof |
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