CN213693505U - Power supply device and equipment thereof - Google Patents
Power supply device and equipment thereof Download PDFInfo
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- CN213693505U CN213693505U CN202022445030.7U CN202022445030U CN213693505U CN 213693505 U CN213693505 U CN 213693505U CN 202022445030 U CN202022445030 U CN 202022445030U CN 213693505 U CN213693505 U CN 213693505U
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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 embodiment of the utility model discloses power supply unit and equipment thereof, power supply unit includes first power supply portion, second power supply portion, control division and switch portion. The first power supply part is used for performing full-wave rectification and filtering on commercial power and supplying the commercial power to a load; the second power supply part is connected with the first power supply part and is used for performing half-wave rectification filtering on commercial power and supplying the commercial power to the power conversion module in a standby state of the power supply device; the control part is connected with the switch part and used for providing a switch control signal to the switch part so as to control the on-off state of the switch part. The utility model provides a power supply unit through adopting full wave rectification and half-wave rectification, can realize good consumption reduction effect, compares and adopts two full wave rectification in prior art, has not only greatly reduced stand-by power consumption, still the cost is reduced.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a power supply unit and equipment thereof.
Background
The energy loss of the electronic product in the standby state is different from the energy loss of the electronic product in the normal operation, and the energy loss of the electronic product in the standby state is substantially useless. Some electronic product brands have definite limitations on the standby power consumption of the power supply, and therefore, it is necessary to design a low-cost and low-standby power consumption circuit for the power supply of the electronic product.
In order to further reduce standby power consumption, a power supply device in the prior art generally adopts two paths of full-wave rectification to respectively supply power to a load and a power conversion module, and in a standby state, a control part controls a switch to cut off a load input power supply so as to achieve the purpose of reducing power consumption.
How to provide a power supply device with low cost and good power consumption reduction effect, no effective solution exists in the prior art at present.
Disclosure of Invention
In view of the above, it is necessary to provide a power supply device that is low in cost and can achieve a good power consumption reduction effect, and also provide a power supply apparatus having the power supply device.
The utility model discloses a technical means be: there is provided a power supply device, the device including: a first power supply unit, a second power supply unit, a control unit, and a switch unit;
the first power supply part is used for performing full-wave rectification and filtering on commercial power and supplying the commercial power to a load; wherein the load is a powered device;
the second power supply part is connected with the first power supply part and is used for performing half-wave rectification filtering on commercial power and supplying the commercial power to the power conversion module in a standby state of the power supply device; the power supply conversion module is used for supplying power to the power supply device and the low-voltage load;
the control part is connected with the switch part and used for providing a switch control signal to the switch part so as to control the switch state of the switch part;
the switch portion, the first switch end of switch portion connect the live wire with second power supply portion, the second switch end of switch portion connects first power supply portion for according to the switch control signal, carry out closure or disconnection operation, and then control the switch-on or the shutoff of first power supply portion.
The utility model discloses another technical means who adopts is: provided is a power supply device including: the power supply device and the power supply conversion module.
Since the technical scheme is used, the utility model provides a power supply unit and equipment thereof, power supply unit includes first power supply portion, second power supply portion, control division and switch portion. The first power supply part is used for carrying out full-wave rectification and filtering on commercial power and supplying the commercial power to a load; the second power supply part is connected with the first power supply part, and supplies half-wave rectification filtering to the commercial power to the power conversion module in the standby state of the power supply device; the control part is connected with the switch part and used for providing a switch control signal to the switch part so as to control the switch state of the switch part and further control the connection or disconnection of the first power supply part. The utility model provides a power supply unit, through adopting full-wave rectification and half-wave rectification, the required energy consumption of half-wave rectification is less than the required energy consumption of full-wave rectification, can realize good consumption reduction effect, compares and adopts two full-wave rectification in prior art, has not only greatly reduced stand-by power consumption, still the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
FIG. 1 is a schematic diagram of a power supply apparatus according to an embodiment;
FIG. 2 is a schematic circuit diagram of a power supply apparatus in one embodiment;
fig. 3 is a comparative example diagram of a power supply device.
In the figure: 1. a power supply device; 2. a load; 3. a power conversion module; 4. a low voltage load; 11. a control unit; 12. a switch section; 13. a first power supply unit; 14. a second power supply unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The terms first, second and the like in the description and in the claims, and in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be practiced otherwise than as specifically illustrated.
The present invention provides a power supply device 1, as shown in fig. 1, in one embodiment, the power supply device 1 may include a first power supply portion 13, a second power supply portion 14, a control portion 11, and a switch portion 12. The first power supply unit 13 may be configured to perform full-wave rectification filtering on the commercial power and supply the commercial power to the load 2; wherein the load 2 is a consumer; the second power supply part 14 may be connected to the first power supply part 13, and configured to perform half-wave rectification filtering on the commercial power to supply the commercial power to the power conversion module 3 in the standby state of the power supply apparatus 1; the power conversion module 3 is configured to supply power to the power supply device 1 and the low-voltage load 4, that is, the power conversion module 3 is configured to convert the rectified voltage into a voltage required by the power supply device 1 and the low-voltage load 4, and supply the voltage to the power supply device 1 and the low-voltage load 4, for example, the power supply device may be a switching power supply, a step-down circuit, or the like; the control part 11 may be connected to the switch part 12, and is configured to provide a switch control signal to the switch part 12 to control a switching state of the switch part 12; the first switch end of the switch portion 12 may be connected to the live wire L and the second power supply portion 14, and the second switch end of the switch portion 12 is connected to the first power supply portion 13, and is configured to execute a closing or opening operation according to the switch control signal, so as to control the first power supply portion 13 to be turned on or off. The control unit 11 may adopt an MCU, the MCU may be a single chip, a DSP, an FPGA, or the like, and of course, the control unit 11 may also adopt other control modules with equivalent functions, which is not particularly limited in this application.
The utility model provides a power supply unit 1, through adopting full-wave rectification and half-wave rectification, the required energy consumption of half-wave rectification is less than the required energy consumption of full-wave rectification, can realize good consumption reduction effect, compares and adopts two full-wave rectification in prior art, has not only greatly reduced standby power consumption, still the cost is reduced.
In one embodiment, the second power supply part 14 may be further configured to, in an operating state of the power supply apparatus 1, provide the first power supply part 13 with power to the load 2, and provide the power to the power conversion module 3 via the second power supply part 14.
In one embodiment, as shown in fig. 2, the first power supply part 13 may include a first thermistor NTC1, a rectifier BD1, and a first electrolytic capacitor CE 1; the first thermistor NTC1 adopts a negative temperature coefficient thermistor and is used for resisting surge impact. Specifically, one end of the first thermistor NTC1 is connected to the second switch end of the switch unit 12, the other end of the first thermistor NTC1 is connected to a first input end of a rectifier BD1, a second input end of the rectifier BD1 is connected to a zero line N, a first output end of the rectifier BD1 is connected to the positive electrode of the first electrolytic capacitor CE1, and a second output end of the rectifier BD1 is connected to the negative electrode of the first electrolytic capacitor CE1 and to a protection ground PGND.
In one embodiment, as shown in fig. 2, the second power supply part 14 may include a second thermistor NTC2, a second diode D2, and a second electrolytic capacitor CE 2; the second thermistor NTC2 adopts a negative temperature coefficient thermistor and is used for resisting surge impact. Specifically, one end of the second thermistor CE2 may be connected to the live line L and to the first switch end of the switch unit 12, the other end of the second thermistor CE2 may be connected to the anode of the second diode D2, the cathode of the second diode D2 may be connected to the anode of the second electrolytic capacitor CE2, and the cathode of the second electrolytic capacitor CE2 may be connected to the protection ground PGND.
In one embodiment, as shown in fig. 2, the second power supply part 14 may further include a third diode D3, and the third diode D3 may be configured to enable the first power supply part 13 to provide power to the power conversion module 3 via the third diode D3 in the operating state of the power supply apparatus 1; the anode of the third diode D3 is connected to the output terminal of the first power supply unit 13, and the cathode of the third diode D3 is connected to the anode of the second electrolytic capacitor CE2 and to the power conversion module 3.
In one embodiment, the switching section 12 may have a controlled terminal, a power supply terminal, a fixed terminal, and a switching terminal; the power conversion module 3 is provided with a power end and a grounding end; the controlled end is connected with the control part 11, the power supply end is connected with the power supply end, and the fixed end is connected with the live wire and the second power supply part 14; the switch terminal is connected to the input terminal of the first power supply unit 13.
In one embodiment, as shown in fig. 2, the switching section 12 may be a relay RY 1; the relay RY1 has a coil, a movable contact and a stationary contact; the first end of the coil is connected with the control part 11, the second end of the coil is connected with the power supply end and receives +12V, and the static contact is connected with the live wire L and the second power supply part 14; the moving contact is connected to an input terminal of the first power supply part 13.
In one embodiment, as shown in fig. 2, the switching section 12 may further include a freewheeling diode D1; the anode of the freewheeling diode D1 is connected to the first end of the coil, and the cathode of the freewheeling diode D1 is connected to the second end of the coil.
In one embodiment, as shown in fig. 2, the control unit 11 may include a transistor Q1, and the transistor Q1 is configured to receive the switching control signal, amplify the switching control signal, and output the amplified switching control signal to the switching unit 12; the base of the transistor Q1 receives the switch control signal, the collector of the transistor Q1 is connected to the switch 12, and the emitter of the transistor Q1 is connected to GND.
As shown in fig. 2, the operating principle of the power supply apparatus 1 according to the embodiment of the present application is as follows: in the standby state of the power supply apparatus 1, the control unit 11 controls the relay RY1 to be turned off, and when the commercial power is in the positive half cycle, the second thermistor NTC2, the second diode D2, the second electrolytic capacitor CE2 and the rectifier BD1 form a half-wave rectifier circuit to charge the second electrolytic capacitor CE 2. Since the output of the power conversion module 3 is basically idle in the standby state of the power supply apparatus 1, the capacitance of the second electrolytic capacitor CE2 can be very small (about several uF) and only half-wave rectification is needed to meet the requirement of the power conversion module 3 for the input voltage. In the normal operating state of the power supply device 1, the control unit 11 controls the relay RY1 to close, the first electrolytic capacitor CE1 is charged through the rectifier BD1, and at this time, since the capacitance value of the second electrolytic capacitor CE2 is too small, the energy required by the loaded power conversion module 3 is mainly provided by the first electrolytic capacitor CE1 through the third diode D3. In the embodiment, under the condition of extremely low cost, the standby power consumption of the power supply device 1 is greatly reduced, the number of devices and the parameter capacity of the devices are reduced, and the circuit stability of the power supply device 1 is improved.
For better illustration, the present invention is low in cost, and can achieve the technical effect of good power consumption reduction, and a comparative example diagram of the power supply apparatus 1 shown in fig. 3 is given. Comparing fig. 2 and 3, the second power supply part 14 of fig. 3 includes a second thermistor NTC2, a rectifier BD2, and a second electrolytic capacitor CE2, and the first power supply part 13 includes a first thermistor NTC1, a rectifier BD1, and a first electrolytic capacitor CE 1. In the standby state of the power supply device 1, the control part 11 controls the switch part 12 to be switched off, and further controls the first power supply part 13 to be switched off, so that the effect of reducing power consumption is achieved, in the method, two full-wave rectifiers are used, and the type selection of the second electrolytic capacitor CE2 needs to meet the requirement of full load of the power conversion module 3, so that the design cost of a circuit of the power supply device 1 is greatly increased, and the circuit shown in the example of FIG. 3 has a large number of devices, high requirement on device parameter indexes, and high cost. As shown in fig. 2, the second power supplying part 14 of the present embodiment includes a second thermistor NTC2, a second diode D2, a third diode D3, and a second electrolytic capacitor CE 2. The first power supply part 13 includes a first thermistor NTC1, a rectifier BD1, and a first electrolytic capacitor CE 1. In the standby state of the power supply apparatus 1, the control unit 11 controls the relay RY1 to be turned off, and when the commercial power is in the positive half cycle, the second thermistor NTC2, the second diode D2, the second electrolytic capacitor CE2 and the rectifier BD1 form a half-wave rectifier circuit to charge the second electrolytic capacitor CE 2. Since the output of the power conversion module 3 is basically idle in the standby state of the power supply apparatus 1, the capacitance of the second electrolytic capacitor CE2 can be very small (about several uF) and only half-wave rectification is needed to meet the requirement of the power conversion module 3 for the input voltage. In the case of normal operation of the power supply device 1, the control unit 11 controls the relay RY1 to close, the first electrolytic capacitor CE1 is charged through the rectifier BD1, and at this time, since the capacitance value of the second electrolytic capacitor CE2 is too small, the energy required by the loaded power conversion module 3 is mainly provided by the first electrolytic capacitor CE1 through the third diode D3. In the embodiment, under the condition of extremely low cost, the standby power consumption of the power supply device 1 is greatly reduced, the number of devices and the parameter capacity of the devices are reduced, and the circuit stability of the power supply device 1 is improved.
The utility model also provides a power supply unit, power supply unit includes: the power supply apparatus 1 and the power conversion module 3 according to any of the above embodiments.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A power supply apparatus, characterized in that the apparatus comprises: a first power supply unit, a second power supply unit, a control unit, and a switch unit;
the first power supply part is used for performing full-wave rectification and filtering on commercial power and supplying the commercial power to a load; wherein the load is a powered device;
the second power supply part is connected with the first power supply part and is used for performing half-wave rectification filtering on commercial power and supplying the commercial power to the power conversion module in a standby state of the power supply device; the power supply conversion module is used for supplying power to the power supply device and the low-voltage load;
the control part is connected with the switch part and used for providing a switch control signal to the switch part so as to control the switch state of the switch part;
the switch portion, the first switch end of switch portion connect the live wire with second power supply portion, the second switch end of switch portion connects first power supply portion for according to the switch control signal, carry out closure or disconnection operation, and then control the switch-on or the shutoff of first power supply portion.
2. The power supply device according to claim 1, wherein the first power supply portion includes a first thermistor, a rectifier, and a first electrolytic capacitor;
one end of the first thermistor is connected with the second switch end of the switch part, the other end of the first thermistor is connected with the first input end of the rectifier, the second input end of the rectifier is connected with a zero line, the first output end of the rectifier is connected with the anode of the first electrolytic capacitor, and the second output end of the rectifier is connected with the cathode of the first electrolytic capacitor and is connected with a protective ground.
3. The power supply device according to claim 1, wherein the second power supply portion includes a second thermistor, a second diode, and a second electrolytic capacitor;
one end of the second thermistor is connected with the live wire and the first switch end of the switch part, the other end of the second thermistor is connected with the anode of the second diode, the cathode of the second diode is connected with the anode of the second electrolytic capacitor, and the cathode of the second electrolytic capacitor is connected with the protective ground.
4. The power supply device according to claim 3, wherein the second power supply portion further comprises:
a third diode, configured to enable the first power supply unit to provide electric energy to the power conversion module via the third diode in an operating state of the power supply apparatus;
and the anode of the third diode is connected with the output end of the first power supply part, and the cathode of the third diode is connected with the anode of the second electrolytic capacitor and is connected with the power supply conversion module.
5. The power supply device according to claim 1,
the switch part is provided with a controlled end, a power supply end, a fixed end and a switch end; the power conversion module is provided with a power end and a grounding end; the controlled end is connected with the control part, the power supply end is connected with the power supply end, and the fixed end is connected with the live wire and the second power supply part; the switch end is connected with the input end of the first power supply part.
6. The power supply device according to claim 5, wherein the switching section includes a relay;
the relay is provided with a coil, a movable contact and a fixed contact; the first end of the coil is connected with the control part, the second end of the coil is connected with the power supply end, and the static contact is connected with the live wire and the second power supply part; the movable contact is connected with the input end of the first power supply part.
7. The power supply device according to claim 6, wherein the switching section further includes a freewheeling diode;
and the anode of the freewheeling diode is connected with the first end of the coil, and the cathode of the freewheeling diode is connected with the second end of the coil.
8. The power supply device according to claim 1, wherein the control portion includes:
the triode is used for receiving the switch control signal, amplifying the switch control signal and outputting the amplified switch control signal to the switch part;
the base electrode of the triode receives the switch control signal, the collector electrode of the triode is connected with the switch part, and the emitter electrode of the triode is connected with the ground.
9. A power supply device characterized by comprising: the power supply device and the power conversion module as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445030.7U CN213693505U (en) | 2020-10-29 | 2020-10-29 | Power supply device and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445030.7U CN213693505U (en) | 2020-10-29 | 2020-10-29 | Power supply device and equipment thereof |
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| Publication Number | Publication Date |
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| CN213693505U true CN213693505U (en) | 2021-07-13 |
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| CN202022445030.7U Active CN213693505U (en) | 2020-10-29 | 2020-10-29 | Power supply device and equipment thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118157460A (en) * | 2024-04-25 | 2024-06-07 | 东莞市港奇电子有限公司 | Switching power supply device |
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- 2020-10-29 CN CN202022445030.7U patent/CN213693505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118157460A (en) * | 2024-04-25 | 2024-06-07 | 东莞市港奇电子有限公司 | Switching power supply device |
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