CN202178711U - Dual supply output circuit possessing ultralow no-load power consumption and high efficiency under low load - Google Patents
Dual supply output circuit possessing ultralow no-load power consumption and high efficiency under low load Download PDFInfo
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- CN202178711U CN202178711U CN2011200946617U CN201120094661U CN202178711U CN 202178711 U CN202178711 U CN 202178711U CN 2011200946617 U CN2011200946617 U CN 2011200946617U CN 201120094661 U CN201120094661 U CN 201120094661U CN 202178711 U CN202178711 U CN 202178711U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a dual supply output circuit possessing the ultralow no-load power consumption and the high efficiency under the low load. The dual supply output circuit includes a bridge rectifying and filtering unit, a voltage clamping unit, a switch transformer, a DC/DC control unit, a first voltage output unit, a second voltage output unit, and a voltage feedback unit. The dual supply output circuit is characterized in that the voltage clamping unit carries out the clamping after receiving a voltage signal output from the bridge rectifying and filtering unit, and outputs the voltage after the clamping to the switch transformer and the DC/DC control unit; the voltage feedback unit carries out the rectifying and filtering after receiving a voltage feedback signal output from the switch transformer, and then outputs the voltage signal after the rectifying and filtering to the DC/DC control unit; the switch transformer carries out the voltage transformation after receiving the voltage signals output from the voltage clamping unit, the bridge rectifying and filtering unit, and the DC/DC control unit, and outputs a transformed voltage signal to the first voltage output unit; and the second voltage output unit receives the first voltage output unit and reduces the voltage. The peripheral devices are few, and the dual supply output circuit has the overheating and overvoltage protection, and has the ultralow no-load standby power consumption, an actual measured value is smaller than 30mW. Under the condition of 12V no-load 5V output 9mA, the entire power is smaller than 0.09W, and the standby power is smaller than 0.1W. the , the entire power is smaller than 0.09W, the standby power is smaller than 0.1W.
Description
Technical field
The utility model relates to a kind of high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load that has, and relates to the energy-saving electric power field, can be in small household appliances and white and the use of black appliances field.
Background technology
The most household appliances of determining on the market at present all are to adopt linear transformer as power supply, because the characteristics of linear transformer have determined its no-load power consumption very high, even up to more than the number W; And a lot of household electrical appliances most time in daily use all are to be in holding state; Rather than real shutdown, such as air-conditioning, electromagnetic oven, television set, display or the like, the long stand-by power consumption of a large amount of household appliances causes the huge waste of electric energy; And the household appliances of present most use Switching Power Supply are because technical reason; Under holding state, MCU household appliances of full speed operation still under the holding state particularly, standby power is still bigger than normal.
Summary of the invention
This patent problem to be solved is; A kind of power circuit of idle call is provided, can provides+12V and+two kinds of supply voltages of 5V, this power supply is under Light Condition; Idling consumption below the 30mW can be provided; Have under the condition of 9mA in the unloaded 5V load of+12V, the ultralow standby power of air conditioner less than 0.1W can be provided, what solve the excessive problem of existing air-conditioning product standby power a kind ofly has a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load.
The utility model solve the technical problem the technical scheme that is adopted; A kind of high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load that has is provided; Comprise bridge rectifier filter unit, voltage clamp unit, switch transformer, DC/DC control unit, first voltage output unit, second voltage output unit and Voltage Feedback; It is characterized in that after described voltage clamp unit receives the voltage signal of bridge rectifier filter unit output voltage being carried out clamper, and the voltage after the clamper is exported to described switch transformer and DC/DC control unit; Carry out rectifying and wave-filtering behind the voltage feedback signal of described voltage feedback unit receiving key transformer output, and the voltage signal behind the rectifying and wave-filtering is exported to the DC/DC control unit; Described switch transformer carries out transformation after receiving the voltage signal of voltage clamp unit, bridge rectifier filter unit and the output of DC/DC control unit respectively, and the voltage signal of transformation is exported to first voltage output unit; Second voltage output unit receives first voltage output unit and carries out step-down.
Described rectification filtering unit is drawn together the bridge rectifier of being made up of first to fourth diode; The first electrolysis filter capacitor, the second electrolysis filter capacitor, first resistance and first inductance; Wherein the positive pole of first and second electrolysis filter capacitor connects the negative pole end of bridge rectifier and 1 pin of the elementary winding of switch transformer; The negative pole of the first electrolysis filter capacitor connects the positive terminal of bridge rectifier and an end of first inductance and first resistance, and the negative pole of the second electrolysis filter capacitor connects the other end of first inductance and first resistance.
Described voltage clamp unit comprises second resistance, first voltage stabilizing didoe and the 5th diode, and wherein second resistance is parallelly connected with first voltage stabilizing didoe; The negative pole of first voltage stabilizing didoe is connected with the negative pole of the 5th diode; The positive pole of first voltage stabilizing didoe connects 1 pin of the elementary winding of switch transformer, and the positive pole of the 5th diode connects 3 pin of the elementary winding of switch transformer.
Described voltage feedback unit comprises first electric capacity, the 3rd electrolysis filter capacitor; The auxiliary winding of the 3rd to the 5th resistance, the 6th diode and switch transformer; Wherein connect 5 pin of auxiliary winding of an end and switch transformer of negative pole, the 3rd resistance of the 3rd electrolysis filter capacitor respectively by an end of first electric capacity; One end of another termination the 5th resistance; One end of another termination the 4th resistance of the 3rd resistance, the negative pole of another termination the 6th diode of fourth, fifth resistance and the positive pole of the 3rd electrolysis filter capacitor, the positive pole of the 6th diode connects 4 pin of the auxiliary winding of switch transformer.
Described have a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load; It is characterized in that described DC/DC control unit comprises control chip; The model of control chip is LNK364, and 4,5,6,7 pin of control chip are electrically connected and connect the negative pole of the 3rd electrolysis filter capacitor, and its 3 pin connects 3 pin of the elementary winding of switch transformer; Its 2 pin connects an end of the 4th resistance, and its 1 pin connects an end of the 5th resistance.
Described first voltage output unit comprises the 6th resistance, the 7th resistance, second electric capacity; The 7th diode, the 4th electrolysis filter capacitor and second voltage-stabiliser tube; Wherein parallelly connected with the 7th diode again after the 6th resistance and second capacitances in series; 6 pin of one termination switch transformer of this parallel circuits time winding B1, other end output+12V voltage, the 7th resistance with filter that to flow electric capacity parallelly connected after second voltage stabilizing didoe is connected again with the 4th electrolysis; The negative pole of circuit one termination the 7th diode after this parallel connection, 10 pin of another termination time group winding.
Described second voltage output unit comprises the 3rd electric capacity, the 4th electric capacity, the 8th diode, second inductance and the 8th resistance and the 9th resistance and chip; Wherein the two ends of the 3rd electric capacity are between 2 pin that connect chip and 3 pin; The positive pole of the 8th diode is connected to 6 pin of chip, and negative pole is connected to 4 pin of chip; 4 pin of one chip termination of second inductance; The one end conduct+5V output of another termination the 9th resistance, the other end of the 9th resistance connect an end of the 8th resistance and 1 pin of chip respectively, 6 pin commons of another chip termination of the 8th resistance; One termination, second inductance of the 4th electric capacity and the common port of the 9th resistance; Another termination common, 3,5 pin of chip link to each other and connect the positive pole that electric capacity is flowed in the 4th electrolysis filter, and the model of chip is MAX1836.
This patent compared with prior art its useful effect is that this patent substitutes conventional power supply through using the high efficiency switch power supply, has improved the operating efficiency of power supply greatly; And through using the felling feedback loop; Saved the bigger optocoupler feedback circuit of power consumption, this Switching Power Supply part is only exported one group+12V voltage, and the decrease in efficiency of avoiding many winding outputs to cause causes power consumption to increase; + 5V power supply is supplied with MCU through high efficiency dc-to-dc circuit output back; Do not use inefficient linear voltage regulator, whole design drops to the unloaded standby energy consumption of whole power circuit less than 30mW, and can under the little electric current of 10mA, efficient be not less than 50%.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model;
Fig. 2 is the circuit theory diagrams of the part of Fig. 1;
Fig. 3 is the circuit theory diagrams of another part of Fig. 1.
Embodiment
To combine accompanying drawing and embodiment that the utility model is done further detailed description below:
As shown in Figure 1; It is a kind of high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load that has; Comprise bridge rectifier filter unit 1, voltage clamp unit 2, switch transformer 3, DC/DC control unit 5, first voltage output unit 6, second voltage output unit 7 and Voltage Feedback 4; The utility model characteristics are; Behind the voltage signal of described voltage clamp unit 2 reception bridge rectifier filter units, 1 output voltage is carried out clamper, and the voltage after the clamper is exported to described switch transformer 3 and DC/DC control unit 5; Carry out rectifying and wave-filtering behind the voltage feedback signal of described voltage feedback unit 4 receiving key transformers 3 outputs, and the voltage signal behind the rectifying and wave-filtering is exported to DC/DC control unit 5; Described switch transformer 3 carries out transformation after receiving the voltage signal of voltage clamp unit 2, bridge rectifier filter unit 1 and 5 outputs of DC/DC control unit respectively, and the voltage signal of transformation is exported to first voltage output unit 6; Second voltage output unit 7 receives first voltage output unit 6 and carries out step-down.Switch transformer 3 comprises elementary winding B2, secondary winding B1, auxiliary winding B3 and capacitor C Y, 1 pin of the elementary winding B2 of a termination of capacitor C Y, 10 pin of another termination secondary winding.
As shown in Figure 2; Described rectification filtering unit 1 comprises the bridge rectifier of being made up of first to fourth diode D1-D4; The first electrolysis filter capacitor E1, the second electrolysis filter capacitor E2, first resistance R 1 and first inductance L 1; Wherein the positive pole of first and second electrolysis filter capacitor connects the negative pole end of bridge rectifier and 1 pin of switch transformer 3 elementary winding B2; The negative pole of the first electrolysis filter capacitor connects the positive terminal of bridge rectifier and an end of first inductance and first resistance, and the negative pole of the second electrolysis filter capacitor connects the other end of first inductance and first resistance.
As shown in Figure 2; Described voltage clamp unit 2 comprises second resistance R 2, the first voltage stabilizing didoe ZD1 and the 5th diode D5; Wherein second resistance is parallelly connected with first voltage stabilizing didoe; The negative pole of first voltage stabilizing didoe is connected with the negative pole of the 5th diode, and the positive pole of first voltage stabilizing didoe connects 1 pin of switch transformer 3 elementary winding B2, and the positive pole of the 5th diode connects 3 pin of switch transformer 3 elementary winding B2.
As shown in Figure 2; Described voltage feedback unit 4 comprises first capacitor C 1, the 3rd electrolysis filter capacitor E3; The auxiliary winding B3 of the 3rd to the 5th resistance R 3-R5, the 6th diode D6 and switch transformer 3; Wherein connect 5 pin of auxiliary winding B3 of an end and switch transformer 3 of negative pole, the 3rd resistance of the 3rd electrolysis filter capacitor respectively, an end of another termination the 5th resistance, an end of another termination the 4th resistance of the 3rd resistance by an end of first electric capacity; The negative pole of another termination the 6th diode of fourth, fifth resistance and the positive pole of the 3rd electrolysis filter capacitor, the positive pole of the 6th diode connects 4 pin of the auxiliary winding B3 of switch transformer 3.
As shown in Figure 2; Described DC/DC control unit comprises control chip U1; The model of control chip is LNK364, and 4,5,6,7 pin of control chip are electrically connected and connect the negative pole of the 3rd electrolysis filter capacitor E3, and its 3 pin connects 3 pin of the elementary winding B2 of switch transformer 3; Its 2 pin connects an end of the 4th resistance, and its 1 pin connects an end of the 5th resistance.
Like Fig. 2, shown in 3; Described first voltage output unit 6 comprises the 6th resistance R 6, the 7th resistance R 7, second capacitor C 2; The 7th diode D7, the 4th electrolysis filter capacitor E4 and the second voltage-stabiliser tube ZD2, wherein parallelly connected with the 7th diode again after the 6th resistance and second capacitances in series, 6 pin of 3 winding B1 of a termination switch transformer of this parallel circuits; Other end output+12V voltage; The 7th resistance is with parallelly connected with the 4th electrolysis filter stream electric capacity again after second voltage stabilizing didoe is connected, the negative pole of circuit one termination the 7th diode after this parallel connection, and another termination time is organized 10 pin of winding.
As shown in Figure 3; Described second voltage output unit 7 comprises the 3rd capacitor C 3, the 4th capacitor C 4, the 8th diode D8, second inductance L 2 and the 8th resistance R 8 and the 9th resistance R 9 and chip U1; Wherein the two ends of the 3rd electric capacity are between 2 pin that connect chip and 3 pin; The positive pole of the 8th diode is connected to 6 pin of chip, and negative pole is connected to 4 pin of chip; 4 pin of one chip termination of second inductance; The one end conduct+5V output of another termination the 9th resistance, the other end of the 9th resistance connect an end of the 8th resistance and 1 pin of chip respectively, 6 pin commons of another chip termination of the 8th resistance; One termination, second inductance of the 4th electric capacity and the common port of the 9th resistance; Another termination common, 3,5 pin of chip link to each other and connect the positive pole that electric capacity E4 is flowed in the 4th electrolysis filter, and the model of chip is MAX1836.
Claims (7)
1. one kind has high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load; Comprise bridge rectifier filter unit, voltage clamp unit, switch transformer, DC/DC control unit, first voltage output unit, second voltage output unit and Voltage Feedback; It is characterized in that after described voltage clamp unit (2) receives the voltage signal of bridge rectifier filter unit (1) output voltage being carried out clamper, and the voltage after the clamper is exported to described switch transformer (3) and DC/DC control unit (5); Carry out rectifying and wave-filtering behind the voltage feedback signal of described voltage feedback unit (4) receiving key transformer (3) output, and the voltage signal behind the rectifying and wave-filtering is exported to DC/DC control unit (5); Described switch transformer (3) carries out transformation after receiving the voltage signal of voltage clamp unit (2), bridge rectifier filter unit (1) and DC/DC control unit (5) output respectively, and the voltage signal of transformation is exported to first voltage output unit (6); Second voltage output unit (7) receives first voltage output unit (6) and carries out step-down.
2. according to claim 1 have a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load; It is characterized in that described rectification filtering unit (1) comprises the bridge rectifier of being made up of first to fourth diode (D1-D4); The first electrolysis filter capacitor (E1), the second electrolysis filter capacitor (E2), first resistance (R1) and first inductance (L1); Wherein the positive pole of first and second electrolysis filter capacitor connects the negative pole end of bridge rectifier and 1 pin of the elementary winding of switch transformer (3) (B2); The negative pole of the first electrolysis filter capacitor connects the positive terminal of bridge rectifier and an end of first inductance and first resistance, and the negative pole of the second electrolysis filter capacitor connects the other end of first inductance and first resistance.
3. according to claim 1 have a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load; It is characterized in that described voltage clamp unit (2) comprises second resistance (R2), first voltage stabilizing didoe (ZD1) and the 5th diode (D5); Wherein second resistance is parallelly connected with first voltage stabilizing didoe; The negative pole of first voltage stabilizing didoe is connected with the negative pole of the 5th diode; The positive pole of first voltage stabilizing didoe connects 1 pin of the elementary winding of switch transformer (3) (B2), and the positive pole of the 5th diode connects 3 pin of the elementary winding of switch transformer (3) (B2).
4. according to claim 1 have a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load; It is characterized in that described voltage feedback unit (4) comprises first electric capacity (C1), the 3rd electrolysis filter capacitor (E3); The auxiliary winding (B3) of the 3rd to the 5th resistance (R3-R5), the 6th diode (D6) and switch transformer (3); Wherein connect 5 pin of auxiliary winding (B3) of an end and switch transformer (3) of negative pole, the 3rd resistance of the 3rd electrolysis filter capacitor respectively by an end of first electric capacity; One end of another termination the 5th resistance; One end of another termination the 4th resistance of the 3rd resistance, the negative pole of another termination the 6th diode of fourth, fifth resistance and the positive pole of the 3rd electrolysis filter capacitor, the positive pole of the 6th diode connect 4 pin of the auxiliary winding (B3) of switch transformer (3).
5. describedly has a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load according to claim 1 or 3 or 4; It is characterized in that described DC/DC control unit comprises control chip (U1); The model of control chip is LNK364, and 4,5,6,7 pin of control chip are electrically connected and connect the negative pole of the 3rd electrolysis filter capacitor (E3), and its 3 pin connects 3 pin of the elementary winding (B2) of switch transformer (3); Its 2 pin connects an end of the 4th resistance, and its 1 pin connects an end of the 5th resistance.
6. according to claim 1 have a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load; It is characterized in that described first voltage output unit (6) comprises the 6th resistance (R6), the 7th resistance (R7), second electric capacity (C2); The 7th diode (D7), the 4th electrolysis filter capacitor (E4) and second voltage-stabiliser tube (ZD2); Wherein parallelly connected with the 7th diode again after the 6th resistance and second capacitances in series; 6 pin of the inferior winding B1 of one termination switch transformer (3) of this parallel circuits, other end output+12V voltage, the 7th resistance is with parallelly connected with the 4th electrolysis filter stream electric capacity again after second voltage stabilizing didoe is connected; The negative pole of circuit one termination the 7th diode after this parallel connection, 10 pin of another termination time group winding.
7. describedly has a high efficiency duplicate supply output circuit under extremely low no-load power consumption and the low load according to claim 1 or 6; It is characterized in that described second voltage output unit (7) comprises the 3rd electric capacity (C3), the 4th electric capacity (C4), the 8th diode (D8), second inductance (L2) and the 8th resistance (R8) and the 9th resistance (R9) and chip (U1); Wherein the two ends of the 3rd electric capacity are between 2 pin that connect chip and 3 pin; The positive pole of the 8th diode is connected to 6 pin of chip, and negative pole is connected to 4 pin of chip; 4 pin of one chip termination of second inductance; The one end conduct+5V output of another termination the 9th resistance, the other end of the 9th resistance connect an end of the 8th resistance and 1 pin of chip respectively, 6 pin commons of another chip termination of the 8th resistance; One termination, second inductance of the 4th electric capacity and the common port of the 9th resistance; Another termination common, 3,5 pin of chip link to each other and connect the positive pole that electric capacity (E4) is flowed in the 4th electrolysis filter, and the model of chip is MAX1836.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200946617U CN202178711U (en) | 2011-04-02 | 2011-04-02 | Dual supply output circuit possessing ultralow no-load power consumption and high efficiency under low load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200946617U CN202178711U (en) | 2011-04-02 | 2011-04-02 | Dual supply output circuit possessing ultralow no-load power consumption and high efficiency under low load |
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| CN202178711U true CN202178711U (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200946617U Expired - Lifetime CN202178711U (en) | 2011-04-02 | 2011-04-02 | Dual supply output circuit possessing ultralow no-load power consumption and high efficiency under low load |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547109A (en) * | 2017-08-04 | 2018-01-05 | 广东美的制冷设备有限公司 | Air conditioner current loop communication circuit and air conditioner |
| CN109362311A (en) * | 2018-09-30 | 2019-02-22 | 天津市宝坻区青青蔬菜种植专业合作社 | A kind of supply of data volume nutrient solution root system and light-supplementing system |
| CN109412423A (en) * | 2018-12-14 | 2019-03-01 | 中国电子科技集团公司第四十三研究所 | It is a kind of list pulse width modulator Multiple isolated outputs circuit and isolation output method |
| CN110719028A (en) * | 2018-07-13 | 2020-01-21 | 台达电子工业股份有限公司 | Compensation control system and method |
-
2011
- 2011-04-02 CN CN2011200946617U patent/CN202178711U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547109A (en) * | 2017-08-04 | 2018-01-05 | 广东美的制冷设备有限公司 | Air conditioner current loop communication circuit and air conditioner |
| CN107547109B (en) * | 2017-08-04 | 2021-05-25 | 广东美的制冷设备有限公司 | Air conditioner current loop communication circuit and air conditioner |
| US11378294B2 (en) | 2017-08-04 | 2022-07-05 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Air conditioner current loop communication circuit and air conditioner |
| CN110719028A (en) * | 2018-07-13 | 2020-01-21 | 台达电子工业股份有限公司 | Compensation control system and method |
| CN110719028B (en) * | 2018-07-13 | 2021-03-19 | 台达电子工业股份有限公司 | Compensation control system and method |
| US11139669B2 (en) | 2018-07-13 | 2021-10-05 | Delta Electronics, Inc. | Converter system and method |
| CN109362311A (en) * | 2018-09-30 | 2019-02-22 | 天津市宝坻区青青蔬菜种植专业合作社 | A kind of supply of data volume nutrient solution root system and light-supplementing system |
| CN109362311B (en) * | 2018-09-30 | 2024-02-23 | 天津市宝坻区青青蔬菜种植专业合作社 | Data volume nutrient solution root system supply and light filling system |
| CN109412423A (en) * | 2018-12-14 | 2019-03-01 | 中国电子科技集团公司第四十三研究所 | It is a kind of list pulse width modulator Multiple isolated outputs circuit and isolation output method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20131204 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131204 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: WUHU MEIZHI AIR CONDITIONING EQUIPMENT CO., LTD. Assignor: Midea Group Co., Ltd. Contract record no.: 2014440000237 Denomination of utility model: Dual supply output circuit possessing ultralow no-load power consumption and high efficiency under low load Granted publication date: 20120328 License type: Exclusive License Record date: 20140528 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
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| CX01 | Expiry of patent term |