CN202713134U - Power supply apparatus with stable output - Google Patents
Power supply apparatus with stable output Download PDFInfo
- Publication number
- CN202713134U CN202713134U CN 201220042501 CN201220042501U CN202713134U CN 202713134 U CN202713134 U CN 202713134U CN 201220042501 CN201220042501 CN 201220042501 CN 201220042501 U CN201220042501 U CN 201220042501U CN 202713134 U CN202713134 U CN 202713134U
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- diode
- output
- management chip
- power supply
- transformer
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Abstract
The utility model aims at providing a power supply apparatus with stable output. The apparatus comprises a dual-phase rectifier bridge. An input terminal receives an input voltage and an output terminal is connected with a power supply management chip through a transformer. Through the control of the power supply management chip, the stable power supply is output. According to the apparatus provided in embodiments of the utility model, a dual-phase rectifier circuit is combined with the power supply management chip. The power supply management chip controls the voltage and possesses a protection capability to the circuit so that the stable output is provided. Besides, by using the apparatus provided in the embodiments of the utility model, the circuit structure is simple; and hardware realization cost is reduced. The apparatus can be used to provide power for a household electric light.
Description
Technical field
The utility model relates to the electroporation field, relates in particular to a kind of electric supply installation of stable output.
Background technology
The common circuit structure of the device of existing power supply circuits is comparatively complicated, realizes that cost is high.
The utility model content
The purpose of this utility model is, a kind of electric supply installation is provided, thereby reduces hardware implementation cost.
The purpose of this utility model realizes in the following manner:
A kind of electric supply installation of stable output comprises:
The input of biphase rectification bridge is connected with input power;
One end ground connection of the output of described biphase rectification bridge, the other end is connected with main coil one end of transformer;
The other end of the main coil of described transformer is connected with the control circuit output pin of power management chip;
The secondary coil one end ground connection of described transformer, the other end is connected with the negative electrode of a diode;
The anode of described diode is connected with the power supply input pin of described power management chip, and the anode of described diode also is connected with an end of an electric capacity;
The other end ground connection of described electric capacity;
The power supply input pin of described power management chip is connected by a resistance with the feed back input pin of described power management chip;
The described secondary coil one end ground connection other end is connected the output that output consists of described device with the negative electrode of described diode.
A kind of stable electric supply installation is characterized in that, comprising:
The input of biphase rectification bridge is connected with input power;
One end ground connection of the output of described biphase rectification bridge, the other end is connected with main coil one end of transformer;
The other end of the main coil of described transformer is connected with the control circuit output pin of power management chip;
The secondary coil one end ground connection of described transformer;
The first diode anode in parallel and the first electric capacity between the secondary coil other end of described transformer and the ground, with the second diode anode and the second electric capacity;
Wherein, described the first diode and described the first capacitances in series, described the second diode and described the second capacitances in series, described the first diode be connected the negative electrode of diode and all be connected with the secondary coil other end of described transformer;
The anode of described the first diode also is connected with the power supply input pin of described power management chip;
The anode of described the second diode also is connected by a resistance with the feed back input pin of described power management chip;
The secondary earth end of described transformer and the output of described the second diode anode consist of the output of described device.
The device that the utility model embodiment provides is combined the biphase rectification bridge rectification circuit with power management chip, utilize power management chip to the control of voltage and to the protective capability of circuit, thereby stable output is provided.In addition, the device that the utility model embodiment provides, circuit structure is simple, has reduced hardware implementation cost.Can be used for providing power supply to household lamp.
Description of drawings
The apparatus structure schematic diagram that Fig. 1 provides for first embodiment of the utility model;
The apparatus structure schematic diagram that Fig. 2 provides for second embodiment of the utility model;
The apparatus structure schematic diagram that Fig. 3 provides for the 3rd embodiment of the utility model.
Embodiment
The utility model provides a kind of electric supply installation of stable output, and its implementation structure comprises as shown in Figure 1:
The input of biphase rectification bridge is connected with input power;
One end ground connection of the output of described biphase rectification bridge, the other end is connected with main coil one end of transformer T;
Wherein, described biphase rectification bridge plays rectified action.
The other end of the main coil of described transformer is connected with the control circuit output pin V of power management chip;
The secondary coil one end ground connection of described transformer, the other end is connected with the negative electrode of a diode;
The anode of described diode is connected with the power supply input pin D of described power management chip, and the anode of described diode also is connected with an end of an electric capacity;
The other end ground connection of described electric capacity;
The power supply input pin D of described power management chip is connected by a resistance with the feed back input pin F of described power management chip;
The described secondary coil one end ground connection other end is connected the output that output consists of described device with the negative electrode of described diode;
The ground connection of described power management chip is with reference to pin S ground connection.
Among the utility model embodiment, described power management chip full name is low-power consumption off-line type current source PWM single-chip switching power supply integrated circuit or low-power consumption off-line type current source PWM single-chip switching power supply adjuster.In a slice power management chip, be integrated with a current system dedicated PWM (Pulse Width Modulation, pulse width modulation) high-voltage power MOSFET (Metal-Oxide-Semiconductor Field-EffectTransistor on control circuit and the sheet, metal-oxide half field effect transistor), usually adopt SO-8 (paster 8 pin) encapsulation or DIP-8 (Dual In-linePackage-8, dual in-line package technology 8 pin) encapsulation.For example and without limitation, preferably can adopt VIPer12A chip or VIPer22A chip.
The device that the utility model embodiment provides is combined the biphase rectification bridge rectification circuit with power management chip, utilize power management chip to the control of voltage and to the protective capability of circuit, thereby stable power supply output is provided.In addition, the device that the utility model embodiment provides, circuit structure is simple, has reduced hardware implementation cost.Can be used for providing stable power supply to household lamp.
For further stable output power supply, as shown in Figure 2, the device of the stable output power supply that the utility model embodiment provides, the output of described biphase rectification bridge electric capacity in parallel is used for carrying out filtering processing and smooth voltage.
The utility model also provides the electric supply installation of another stable output, and its implementation structure comprises as shown in Figure 2:
The input of biphase rectification bridge is connected with input power;
One end ground connection of the output of described biphase rectification bridge, the other end is connected with main coil one end of transformer;
The other end of the main coil of described transformer is connected with the control circuit output pin V of power management chip;
The secondary coil one end ground connection of described transformer;
The first diode in parallel and the first electric capacity between the secondary coil other end of described transformer and the ground, with the second diode and the second electric capacity;
Wherein, described the first diode and described the first capacitances in series, described the second diode and described the second capacitances in series, described the first diode be connected the negative electrode of diode and all be connected with the secondary coil other end of described transformer;
The anode of described the first diode also is connected with the power supply input pin D of described power management chip;
The anode of described the second diode also is connected by a resistance with the feed back input pin F of described power management chip;
The secondary earth end of described transformer and the output of described the second diode anode consist of the output of described device
The ground connection of described power management chip is with reference to pin S ground connection.
The above; it only is the better embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (3)
1. the electric supply installation of a stable output is characterized in that, comprising:
The input of biphase rectification bridge is connected with input power;
One end ground connection of the output of described biphase rectification bridge, the other end is connected with main coil one end of transformer;
The other end of the main coil of described transformer is connected with the control circuit output pin of power management chip;
The secondary coil one end ground connection of described transformer, the other end is connected with the negative electrode of a diode;
The anode of described diode is connected with the power supply input pin of described power management chip, and the anode of described diode also is connected with an end of an electric capacity;
The other end ground connection of described electric capacity;
The power supply input pin of described power management chip is connected by a resistance with the feed back input pin of described power management chip;
The described secondary coil one end ground connection other end is connected the output that output consists of described device with the negative electrode of described diode.
2. the electric supply installation of stable output according to claim 1 is characterized in that, the output of described biphase rectification bridge electric capacity in parallel.
3. a stable electric supply installation is characterized in that, comprising:
The input of biphase rectification bridge is connected with input power;
One end ground connection of the output of described biphase rectification bridge, the other end is connected with main coil one end of transformer;
The other end of the main coil of described transformer is connected with the control circuit output pin of power management chip;
The secondary coil one end ground connection of described transformer;
The first diode anode in parallel and the first electric capacity between the secondary coil other end of described transformer and the ground, with the second diode anode and the second electric capacity;
Wherein, described the first diode and described the first capacitances in series, described the second diode and described the second capacitances in series, described the first diode be connected the negative electrode of diode and all be connected with the secondary coil other end of described transformer;
The anode of described the first diode also is connected with the power supply input pin of described power management chip;
The anode of described the second diode also is connected by a resistance with the feed back input pin of described power management chip;
The secondary earth end of described transformer and the output of described the second diode anode consist of the output of described device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220042501 CN202713134U (en) | 2012-02-10 | 2012-02-10 | Power supply apparatus with stable output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220042501 CN202713134U (en) | 2012-02-10 | 2012-02-10 | Power supply apparatus with stable output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713134U true CN202713134U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220042501 Expired - Fee Related CN202713134U (en) | 2012-02-10 | 2012-02-10 | Power supply apparatus with stable output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202713134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068703A1 (en) * | 2019-10-11 | 2021-04-15 | 珠海格力电器股份有限公司 | Power supply control circuit and electrical device |
-
2012
- 2012-02-10 CN CN 201220042501 patent/CN202713134U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068703A1 (en) * | 2019-10-11 | 2021-04-15 | 珠海格力电器股份有限公司 | Power supply control circuit and electrical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140210 |