CN103078411B - Energy source collecting device - Google Patents
Energy source collecting device Download PDFInfo
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- CN103078411B CN103078411B CN201310005846.XA CN201310005846A CN103078411B CN 103078411 B CN103078411 B CN 103078411B CN 201310005846 A CN201310005846 A CN 201310005846A CN 103078411 B CN103078411 B CN 103078411B
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Abstract
The invention relates to the technical field of energy source collection, in particular to an energy source collecting device after the discharging of a power electronic bus capacitor. The energy source collecting device comprises an air conditioning power supply module, a connector, an energy storage module and a load, wherein one end of the connector is connected with the air conditioning power supply module, the other end of the connector is connected with the energy storage module, the energy storage module is connected with the load, the air conditioning power supply module comprises a PFC (power factor correction) capacitor, the air conditioning power supply module is used for converting electric charges stored on the PFC capacitor after the power failure to the energy storage module through the connector, and the energy storage module provides electric energy for the load and is arranged outside the air conditioning power supply module. The residual voltage on the bus capacitor can be fast reduced, and meanwhile, the collected energy sources can be provided for loads such as a door bell, a radio telephone, a power-supply-free flashlight, a sound box, an electronic toy, a radio telephone, an electric hot water bottle, a hearing aid and the like.
Description
Technical field
The present invention relates to technical field of energy source collection, more specifically, relate to the energy collection device after the electric discharge of power electronics bus capacitor.
Background technology
Power grade and the power density of large-scale power electronic equipment are more and more higher, require also more and more stricter to the safety of power electronics.After this just requires power electronic equipment dump, on equipment, residual voltage at the appointed time can not higher than safe voltage.Above-mentioned safety is generally met by corresponding discharge circuit.Along with the increase of bus capacitor capacitance, busbar voltage amplitude improves constantly, for meeting above-mentioned safety requirement.The power of discharge circuit consumption is constantly accumulated.When consuming these energy, the system that is not only increases thermal source, increases burden, and cause the waste of the energy to the heat dissipation design of machine system.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of energy collecting device of bus capacitor, both residual voltage on bus capacitor can be reduced fast, the energy collected doorbell, radio telephone, non-transformer flashlight, sound equipment, electronic toy, radio telephone, electric hot water bottle and hearing aids even load can be supplied to simultaneously.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of energy collection device, comprising: air conditioner power source module, connector, energy storage module and load, connector one end and air conditioner power source model calling, the other end is connected with energy storage module; Energy storage module connects load, and described air conditioner power source module comprises PFC electric capacity, and air conditioner power source module is for being transformed into energy storage module by the electric charge be present in after power-off on PFC electric capacity through connector; Described energy storage module provides electric energy for load, and energy storage module is located at air conditioner power source module-external.Described load is doorbell, radio telephone, non-transformer flashlight, sound equipment, electronic toy, electric hot water bottle, hearing aids wherein one or more.Energy storage module to obtain after energy by the circuit of self as load provides electric energy.
Further, described air conditioner power source module is a part for air-conditioner outdoor unit control board; Air conditioner power source module also comprises the rectification circuit, PFC reactor, switching power circuit, VCC2, second switch and the air conditioner load that connect successively; PFC electric capacity one end connects PFC reactor, other end connecting valve power circuit; Air conditioner power source module also comprises the first switch and other loads, and first switch one end is connected with other loads, and the other end is connected with PFC electric capacity.As input L, after N end disconnects, open the first switch and second switch, disconnect air conditioner load and other loads, air-conditioning still has very large residual voltage after a loss of power, by air-conditioning air conditioner power source module own, the electric charge be also stored in after power-off on PFC electric capacity is changed to external energy storage module via connector, then provide electric energy to load.
Further, described energy storage module comprises energy storage module charging circuit, energy storage module detects booster circuit and energy storage module voltage stabilizing circuit.
Described energy storage module charging circuit comprises triode V101, resistance R101, resistance R102, slide rheostat RW101, triode V102, resistance R103, resistance R104, triode V103, electric capacity C101, electric capacity C102, resistance R105, resistance R106, resistance R107, resistance R108, resistance R109, resistance R110, resistance R111, charging indicator light V104, comparator N101, resistance R112, resistance R113, the base stage of slide rheostat RW102 and connector X101, triode V101 connects the P101 mouth of MCU, and emitter-base bandgap grading connects 1 of slide rheostat RW101, 2 ends, collector electrode contact resistance R101, resistance R102, the resistance R101 other end connects Vcc, the resistance R102 other end connects 3 ends of slide rheostat RW101, the base stage of the 3 end connecting triode V102 of slide rheostat RW101, collector electrode connects Vcc, one end of emitter-base bandgap grading contact resistance R103, one end of the other end contact resistance R104 of resistance R103, resistance R104 other end ground connection, the non-ground-end of triode V103 base stage contact resistance R104, triode V103 emitter-base bandgap grading connects the positive pole of electric capacity C101, one end of connecting resistance R106 and resistance R107 while of triode V103 collector electrode, an other terminating resistor R108 of an other termination Vcc of resistance R106, resistance R107, one end of resistance R109, other one end ground connection of resistance R108, an other terminating resistor R111 of resistance R109, other one end ground connection of resistance R111, the non-ground-end of the one terminating resistor R111 of resistance R110, the negative electrode of an other termination charging indicator light V104 of resistance R110, charging indicator light V104 anode connects 1 pin of comparator N101, the non-ground-end of the 2 pin connecting resistance R109 of comparator N101, one end of the 3 pin connecting resistance R105 of comparator N101, an other termination Vcc of resistance R105, the 4 pin ground connection of comparator N101, 5 pin of comparator N101 connect P103 mouth, and 6 pin of comparator N101 connect 2 pin of slide rheostat RW102,1 of slide rheostat RW102, 1 of 3 pin difference connecting connector X101, 2 pin, connector X101 connector, one end of the 7 pin connecting resistance R112 of comparator N101, the P102 mouth of an other termination MCU of resistance R112, resistance R113 one end ground connection, the P102 mouth of an other termination MCU, after electric capacity C101 and electric capacity C102 parallel connection, positive pole connects P103 mouth, minus earth, P103 mouth connects energy storage module and detects booster circuit.Described electric capacity C101 and electric capacity C102 is the super capacitor of energy energy storage.After connecting, target voltage is under the state that super-capacitor voltage is low, regulates suitable charging voltage to charge accumulation of energy to electric capacity C101, electric capacity C102 via slide rheostat RW102.Charging indicator light V104 lights in instruction charging process.Slide rheostat RW101 can change charging current, charging indicator light V104 automatic distinguishing after charging complete.
Described energy storage module detects booster circuit and comprises inductance L 201, diode V201, electric capacity C201, electric capacity C202, boosted switch power supply B201, slide rheostat RW201, comparator N201, resistance R201, resistance R202, resistance R203 and resistance R204, inductance L 201 one end is connected to the P201 mouth of MCU, the other end is connected to diode V201 anode, 3 ends of boosted switch power supply B201 are connected to diode V201 anode, 2 ends of boosted switch power supply B201 are connected to diode V201 negative electrode, the 1 end ground connection of boosted switch power supply B201, after electric capacity C201 is in parallel with electric capacity C202, positive pole connects diode V201 negative electrode, minus earth, the 1 end ground connection of slide rheostat RW201, 4 pin of 2 termination comparator N201, 3 termination Vcc, the 1 pin connecting resistance R203 of comparator N201, ground connection after resistance R204 and resistance R203 connects, the non-ground-end of the P201 mouth connecting resistance R204 of MCU, the 2 pin ground connection of comparator N201, 3 pin of comparator N201 connect resistance R201 and resistance R202 simultaneously, resistance R201 and the other one end of resistance R202 connect diode V201 negative electrode and ground respectively, 6 pin of comparator N201 meet Vcc, P202 mouth connects P103 mouth.Buzzing alarm structure is also provided with in energy collection device.For load provides the energy after energy storage module detection booster circuit carries out filtering boosting after electric capacity C101, electric capacity C102 charging complete, low voltage test is carried out to device simultaneously, with regard to the prompting of buzzing alarm structure, device is charged to limit value when voltage is low.
Described energy storage module voltage stabilizing circuit comprises resistance R301, resistance R302, triode V301, triode V302, triode V303 and diode V304, resistance R301 other one end ground connection after resistance R301 and resistance R302 connects, the negative electrode of the other terminating diode V201 of resistance R302, triode V301 base stage connecting resistance R301 non-ground-end, collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects triode V302 base stage, triode V302 collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects triode V303 base stage, triode V303 collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects diode V304 anode, diode V304 negative electrode connects load.Energy storage module voltage stabilizing circuit effectively can carry out voltage stabilizing adjustment, for load provides stable voltage to the voltage that energy storage module detection booster circuit produces.
Described air-conditioning is PFC Developing Tactics power factor convertible frequency air-conditioner.
Compared with prior art, beneficial effect is: the present invention mainly provides a kind of energy collecting device of bus capacitor, both residual voltage on bus capacitor can be reduced fast, the energy collected doorbell, radio telephone, non-transformer flashlight, sound equipment, electronic toy, radio telephone, electric hot water bottle and hearing aids even load can be supplied to simultaneously.
Accompanying drawing explanation
Fig. 1 is integral module structural representation of the present invention.
Fig. 2 is energy storage module charging circuit schematic diagram of the present invention.
Fig. 3 is that energy storage module of the present invention detects booster circuit and energy storage module voltage stabilizing circuit schematic diagram.
Embodiment
As Figure 1-3, a kind of energy collection device, comprising: air conditioner power source module, connector, energy storage module and load, connector one end and air conditioner power source model calling, the other end is connected with energy storage module; Energy storage module connects load, and described air conditioner power source module comprises PFC electric capacity, and air conditioner power source module is for being transformed into energy storage module by the electric charge be present in after power-off on PFC electric capacity through connector; Described energy storage module provides electric energy for load, and energy storage module is located at air conditioner power source module-external.Described load is doorbell, radio telephone, non-transformer flashlight, sound equipment, electronic toy, electric hot water bottle, hearing aids wherein one or more.Energy storage module to obtain after energy by the circuit of self as load provides electric energy.
Further, described air conditioner power source module is a part for air-conditioner outdoor unit control board; Air conditioner power source module also comprises the rectification circuit, PFC reactor, switching power circuit, VCC2, second switch and the air conditioner load that connect successively; PFC electric capacity one end connects PFC reactor, other end connecting valve power circuit; Air conditioner power source module also comprises the first switch and other loads, and first switch one end is connected with other loads, and the other end is connected with PFC electric capacity.As input L, after N end disconnects, open the first switch and second switch, disconnect air conditioner load and other loads, air-conditioning still has very large residual voltage after a loss of power, by air-conditioning air conditioner power source module own, the electric charge be also stored in after power-off on PFC electric capacity is changed to external energy storage module via connector, then provide electric energy to load.
Further, described energy storage module comprises energy storage module charging circuit, energy storage module detects booster circuit 1 and energy storage module voltage stabilizing circuit 2.
Be illustrated in figure 2 energy storage module charging circuit, energy storage module charging circuit comprises triode V101, resistance R101, resistance R102, slide rheostat RW101, triode V102, resistance R103, resistance R104, triode V103, electric capacity C101, electric capacity C102, resistance R105, resistance R106, resistance R107, resistance R108, resistance R109, resistance R110, resistance R111, charging indicator light V104, comparator N101, resistance R112, resistance R113, the base stage of slide rheostat RW102 and connector X101, triode V101 connects the P101 mouth of MCU, and emitter-base bandgap grading connects 1 of slide rheostat RW101, 2 ends, collector electrode contact resistance R101, resistance R102, the resistance R101 other end connects Vcc, the resistance R102 other end connects 3 ends of slide rheostat RW101, the base stage of the 3 end connecting triode V102 of slide rheostat RW101, collector electrode connects Vcc, one end of emitter-base bandgap grading contact resistance R103, one end of the other end contact resistance R104 of resistance R103, resistance R104 other end ground connection, the non-ground-end of triode V103 base stage contact resistance R104, triode V103 emitter-base bandgap grading connects the positive pole of electric capacity C101, one end of connecting resistance R106 and resistance R107 while of triode V103 collector electrode, an other terminating resistor R108 of an other termination Vcc of resistance R106, resistance R107, one end of resistance R109, other one end ground connection of resistance R108, an other terminating resistor R111 of resistance R109, other one end ground connection of resistance R111, the non-ground-end of the one terminating resistor R111 of resistance R110, the negative electrode of an other termination charging indicator light V104 of resistance R110, charging indicator light V104 anode connects 1 pin of comparator N101, the non-ground-end of the 2 pin connecting resistance R109 of comparator N101, one end of the 3 pin connecting resistance R105 of comparator N101, an other termination Vcc of resistance R105, the 4 pin ground connection of comparator N101, 5 pin of comparator N101 connect P103 mouth, and 6 pin of comparator N101 connect 2 pin of slide rheostat RW102,1 of slide rheostat RW102, 1 of 3 pin difference connecting connector X101, 2 pin, connector X101 connector, one end of the 7 pin connecting resistance R112 of comparator N101, the P102 mouth of an other termination MCU of resistance R112, resistance R113 one end ground connection, the P102 mouth of an other termination MCU, after electric capacity C101 and electric capacity C102 parallel connection, positive pole connects P103 mouth, minus earth, P103 mouth is connected to energy storage module in Fig. 3 and detects the P202 mouth of booster circuit 1.Described electric capacity C101 and electric capacity C102 is the super capacitor of energy energy storage.After connecting, target voltage is under the state that super-capacitor voltage is low, regulates suitable charging voltage to charge accumulation of energy to electric capacity C101, electric capacity C102 via slide rheostat RW102.Charging indicator light V104 lights in instruction charging process.Slide rheostat RW101 can change charging current, charging indicator light V104 automatic distinguishing after charging complete.
As shown in Figure 3, for energy storage module detects booster circuit 1 and energy storage module voltage stabilizing circuit 2, energy storage module detects booster circuit 1 and comprises inductance L 201, diode V201, electric capacity C201, electric capacity C202, boosted switch power supply B201, slide rheostat RW201, comparator N201, resistance R201, resistance R202, resistance R203 and resistance R204, inductance L 201 one end is connected to the P201 mouth of MCU, the other end is connected to diode V201 anode, 3 ends of boosted switch power supply B201 are connected to diode V201 anode, 2 ends of boosted switch power supply B201 are connected to diode V201 negative electrode, the 1 end ground connection of boosted switch power supply B201, after electric capacity C201 is in parallel with electric capacity C202, positive pole connects diode V201 negative electrode, minus earth, the 1 end ground connection of slide rheostat RW201, 4 pin of 2 termination comparator N201, 3 termination Vcc, the 1 pin connecting resistance R203 of comparator N201, ground connection after resistance R204 and resistance R203 connects, the non-ground-end of the P201 mouth connecting resistance R204 of MCU, the 2 pin ground connection of comparator N201, 3 pin of comparator N201 connect resistance R201 and resistance R202 simultaneously, resistance R201 and the other one end of resistance R202 connect diode V201 negative electrode and ground respectively, 6 pin of comparator N201 meet Vcc, P202 mouth is connected to the P103 mouth of energy storage module charging circuit in Fig. 2.Buzzing alarm structure is also provided with in energy collection device.For load provides the energy after energy storage module detection booster circuit 1 carries out filtering boosting after electric capacity C101, electric capacity C102 charging complete, low voltage test is carried out to device simultaneously, with regard to the prompting of buzzing alarm structure, device is charged to limit value when voltage is low.
Energy storage module voltage stabilizing circuit 2 comprises resistance R301, resistance R302, triode V301, triode V302, triode V303 and diode V304, resistance R301 other one end ground connection after resistance R301 and resistance R302 connects, the negative electrode of the other terminating diode V201 of resistance R302, triode V301 base stage connecting resistance R301 non-ground-end, collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects triode V302 base stage, triode V302 collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects triode V303 base stage, triode V303 collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects diode V304 anode, diode V304 negative electrode connects load.Energy storage module voltage stabilizing circuit 2 effectively can carry out voltage stabilizing adjustment, for load provides stable voltage to the voltage that energy storage module detection booster circuit 1 produces.
Described air-conditioning is PFC Developing Tactics power factor convertible frequency air-conditioner.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can do the improvement of some applicable actual conditions to the technical scheme of invention.Therefore, protection scope of the present invention is not limited thereto, and those of skill in the art are any to be included within scope based on non-material change in technical solution of the present invention.
Claims (7)
1. an energy collection device, is characterized in that comprising, air conditioner power source module, connector, energy storage module and load, connector one end and air conditioner power source model calling, and the other end is connected with energy storage module; Energy storage module connects load, and described air conditioner power source module comprises PFC electric capacity, and air conditioner power source module is for being transformed into energy storage module by the electric charge be present in after power-off on PFC electric capacity through connector; Described energy storage module provides electric energy for load, and energy storage module is located at air conditioner power source module-external;
Described air conditioner power source module is a part for air-conditioner outdoor unit control board; Air conditioner power source module also comprises the rectification circuit, PFC reactor, switching power circuit, VCC2, second switch and the air conditioner load that connect successively; PFC electric capacity one end connects PFC reactor, other end connecting valve power circuit; Air conditioner power source module also comprises the first switch and other loads, and first switch one end is connected with other loads, and the other end is connected with PFC electric capacity;
Described energy storage module comprises energy storage module charging circuit, energy storage module detects booster circuit and energy storage module voltage stabilizing circuit;
Described energy storage module charging circuit comprises triode V101, resistance R101, resistance R102, slide rheostat RW101, triode V102, resistance R103, resistance R104, triode V103, electric capacity C101, electric capacity C102, resistance R105, resistance R106, resistance R107, resistance R108, resistance R109, resistance R110, resistance R111, charging indicator light V104, comparator N101, resistance R112, resistance R113, the base stage of slide rheostat RW102 and connector X101, triode V101 connects the P101 mouth of MCU, and emitter-base bandgap grading connects 1 of slide rheostat RW101, 2 ends, collector electrode contact resistance R101, resistance R102, the resistance R101 other end connects Vcc, the resistance R102 other end connects 3 ends of slide rheostat RW101, the base stage of the 3 end connecting triode V102 of slide rheostat RW101, collector electrode connects Vcc, one end of emitter-base bandgap grading contact resistance R103, one end of the other end contact resistance R104 of resistance R103, resistance R104 other end ground connection, the non-ground-end of triode V103 base stage contact resistance R104, triode V103 emitter-base bandgap grading connects the positive pole of electric capacity C101, one end of connecting resistance R106 and resistance R107 while of triode V103 collector electrode, an other terminating resistor R108 of an other termination Vcc of resistance R106, resistance R107, one end of resistance R109, other one end ground connection of resistance R108, an other terminating resistor R111 of resistance R109, other one end ground connection of resistance R111, the non-ground-end of the one terminating resistor R111 of resistance R110, the negative electrode of an other termination charging indicator light V104 of resistance R110, charging indicator light V104 anode connects 1 pin of comparator N101, the non-ground-end of the 2 pin connecting resistance R109 of comparator N101, one end of the 3 pin connecting resistance R105 of comparator N101, an other termination Vcc of resistance R105, the 4 pin ground connection of comparator N101, 5 pin of comparator N101 connect P103 mouth, and 6 pin of comparator N101 connect 2 pin of slide rheostat RW102,1 of slide rheostat RW102, 1 of 3 pin difference connecting connector X101, 2 pin, connector X101 connector, one end of the 7 pin connecting resistance R112 of comparator N101, the P102 mouth of an other termination MCU of resistance R112, resistance R113 one end ground connection, the P102 mouth of an other termination MCU, after electric capacity C101 and electric capacity C102 parallel connection, positive pole connects P103 mouth, minus earth, P103 mouth connects energy storage module and detects booster circuit.
2. a kind of energy collection device according to claim 1, it is characterized in that: described energy storage module detects booster circuit and comprises inductance L 201, diode V201, electric capacity C201, electric capacity C202, boosted switch power supply B201, slide rheostat RW201, comparator N201, resistance R201, resistance R202, resistance R203 and resistance R204, inductance L 201 one end is connected to the P201 mouth of MCU, the other end is connected to diode V201 anode, 3 ends of boosted switch power supply B201 are connected to diode V201 anode, 2 ends of boosted switch power supply B201 are connected to diode V201 negative electrode, the 1 end ground connection of boosted switch power supply B201, after electric capacity C201 is in parallel with electric capacity C202, positive pole connects diode V201 negative electrode, minus earth, the 1 end ground connection of slide rheostat RW201, 4 pin of 2 termination comparator N201, 3 termination Vcc, the 1 pin connecting resistance R203 of comparator N201, ground connection after resistance R204 and resistance R203 connects, the non-ground-end of the P201 mouth connecting resistance R204 of MCU, the 2 pin ground connection of comparator N201, 3 pin of comparator N201 connect resistance R201 and resistance R202 simultaneously, resistance R201 and the other one end of resistance R202 connect diode V201 negative electrode and ground respectively, 6 pin of comparator N201 meet Vcc, P202 mouth connects P103 mouth.
3. a kind of energy collection device according to claim 2, it is characterized in that: described energy storage module voltage stabilizing circuit comprises resistance R301, resistance R302, triode V301, triode V302, triode V303 and diode V304, resistance R301 other one end ground connection after resistance R301 and resistance R302 connects, the negative electrode of the other terminating diode V201 of resistance R302, triode V301 base stage connecting resistance R301 non-ground-end, collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects triode V302 base stage, triode V302 collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects triode V303 base stage, triode V303 collector electrode connects the negative electrode of diode V201, emitter-base bandgap grading connects diode V304 anode, diode V304 negative electrode connects load.
4. a kind of energy collection device according to claim 1, is characterized in that: described air-conditioning is PFC Developing Tactics power factor convertible frequency air-conditioner.
5. a kind of energy collection device according to claim 1, is characterized in that: described electric capacity C101 and electric capacity C102 is the super capacitor of energy energy storage.
6. a kind of energy collection device according to claim 1, is characterized in that: described load is doorbell, radio telephone, non-transformer flashlight, sound equipment, electronic toy, electric hot water bottle, hearing aids wherein one or more.
7. a kind of energy collection device according to claim 1, is characterized in that: be also provided with buzzing alarm structure in energy collection device.
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| CN201310005846.XA CN103078411B (en) | 2013-01-08 | 2013-01-08 | Energy source collecting device |
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| CN201310005846.XA CN103078411B (en) | 2013-01-08 | 2013-01-08 | Energy source collecting device |
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| CN104913436A (en) * | 2015-05-18 | 2015-09-16 | 珠海格力电器股份有限公司 | Component surplus electricity processing device and method and air conditioning system |
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| CN201416980Y (en) * | 2009-03-16 | 2010-03-03 | 宁波德斯科电子科技有限公司 | Direct-current frequency-varying air-conditioning compressor intelligent controller and air-conditioner controlled by same |
| CN102332755A (en) * | 2011-07-22 | 2012-01-25 | 杭州硅星科技有限公司 | Energy recycling circuit capable of driving capacitive load at low voltage and driving method for energy recycling circuit |
| CN202435262U (en) * | 2012-01-18 | 2012-09-12 | 宁波奥克斯空调有限公司 | Passive PFC (Power Factor Correction) circuit used for variable frequency air conditioner |
| CN203027027U (en) * | 2013-01-08 | 2013-06-26 | 海信科龙电器股份有限公司 | Energy source collecting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102010031568B4 (en) * | 2010-07-20 | 2014-12-11 | TRUMPF Hüttinger GmbH + Co. KG | Arclöschanordnung and method for erasing arcs |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201416980Y (en) * | 2009-03-16 | 2010-03-03 | 宁波德斯科电子科技有限公司 | Direct-current frequency-varying air-conditioning compressor intelligent controller and air-conditioner controlled by same |
| CN102332755A (en) * | 2011-07-22 | 2012-01-25 | 杭州硅星科技有限公司 | Energy recycling circuit capable of driving capacitive load at low voltage and driving method for energy recycling circuit |
| CN202435262U (en) * | 2012-01-18 | 2012-09-12 | 宁波奥克斯空调有限公司 | Passive PFC (Power Factor Correction) circuit used for variable frequency air conditioner |
| CN203027027U (en) * | 2013-01-08 | 2013-06-26 | 海信科龙电器股份有限公司 | Energy source collecting device |
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