CN207166356U - A kind of DC D/C power conversion modules of high accuracy, low ripple - Google Patents
A kind of DC D/C power conversion modules of high accuracy, low ripple Download PDFInfo
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- CN207166356U CN207166356U CN201720966122.5U CN201720966122U CN207166356U CN 207166356 U CN207166356 U CN 207166356U CN 201720966122 U CN201720966122 U CN 201720966122U CN 207166356 U CN207166356 U CN 207166356U
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Abstract
The DC D/C power conversion modules of a kind of high accuracy, low ripple, are related to a kind of power supply changeover device component, and the module includes resistance R1, R2, R3, R4, electric capacity C1, C2, C3, C4, C5, inductance L1, DC DC chips U1, Schottky diode D1；The VCC pin of electric capacity C1 one end, electric capacity C2 one end, resistance R1 one end with DC DC chips U1 are connected；Wherein DC DC chips U1 VCC pin are also voltage input end；The electric capacity C1 other end, the electric capacity C2 other end are connected with common ground end；The EN pin of the resistance R1 other end, resistance R2 one end with DC DC chips U1 are connected；The resistance R2 other end is connected with common ground end；DC DC chips U1 BST pin are connected with electric capacity C3 one end；The utility model has the characteristics of few high accuracy, low ripple, high efficiency, low cost, failure and low-power consumption.
Description
Technical field
It the utility model is related to a kind of electronic product, more particularly to a kind of high accuracy, the DC-DC power source conversion device of low ripple
Module.
Background technology
DC-DC power source conversion device is the power device that a kind of DC voltage is converted into other DC voltages.DC-DC power source
Modular converter is greatly improved the minute design degree of line related converter circuit, while is shortening the R ＆ D design cycle,
Strengthening system reliability etc. has significant advantage, application cover all kinds digital instrumentation and Artificial Intelligence Instrument.
With the rapid development of electronics and information industry, common DC-DC power source conversion module because its output accuracy is relatively low,
Output voltage ripple is larger, reduces the efficiency of power supply, disturbs the stability of circuit, or even burns electrical equipment.It is and common
DC-DC power source conversion module entire area it is larger（Mainly there are inductance and electric capacity）, solder joint is more, not only cause production cost compared with
Height, it can also increase the failure and energy consumption of DC-DC power source conversion module.
Utility model content
The purpose of this utility model is to provide a kind of high accuracy, the DC-DC power source conversion device module of low ripple, the module
It is that a kind of high accuracy, low ripple, high efficiency, low cost, failure be few and the DC-DC power source conversion device module of low-power consumption.
The purpose of this utility model is achieved through the following technical solutions：
A kind of high accuracy, low ripple, high efficiency, low cost, failure be few and the DC-DC power source conversion device module of low-power consumption,
The DC-DC power source conversion device module includes：Resistance R1, R2, R3, R4, electric capacity C1, C2, C3, C4, C5, inductance L1, DC-DC core
Piece U1, Schottky diode D1；One end of the electric capacity C1, electric capacity C2 one end, resistance R1 one end with DC-DC chips
U1 VCC pin connection；Wherein DC-DC chips U1 VCC pin are also voltage input end；The other end, the electric capacity C2 of the electric capacity C1
The other end be connected with common ground end；The EN of the other end of the resistance R1, resistance R2 one end with DC-DC chips U1
Pin connects；The other end of the resistance R2 is connected with common ground end；The BST pin of the DC-DC chips U1 and the one of electric capacity C3
End connection；The other end of the electric capacity C3, Schottky diode D1 negative electrode, inductance L1 one end are with DC-DC chips U1's
LX pin connect；The anode of the Schottky diode D1 is connected with common ground end；The other end of the inductance L1, electric capacity C4
One end, resistance R4 one end, electric capacity C5 one end are all connected with；The other end of the electric capacity C4, the C5 other end connect with public
Ground terminal connects；The FB pin of the other end of the resistance R4, resistance R3 one end with DC-DC chips U1 are connected；The resistance R3
The other end, DC-DC chips U1 GND pin are connected with common ground end；The other end of the inductance L1 also turns for the power supply
Change the mold the voltage output end of block.
The model BD9677G-TR of the DC-DC chips U1.
The advantages of the utility model is with effect：
1. the utility model has wide range input voltage：6-50V, output voltage conversion accuracy are up to ± 2%；
2. there is the utility model up to 1.5MHz fixed switching frequencies, output filter capacitor C5 to select low ESR ceramic electricals
It container, can effectively reduce output voltage ripple, improve the stability of circuit；
3. for the utility model in input voltage 18V, output voltage 12V, output current 500mA, conversion efficiency is reachable
More than 90%；
4. outer member is few needed for the utility model, it is substantially reduced electronic circuit welding and counts out, reduce production cost,
The reliability of circuit is improved, reduces the volume and weight of circuit, advantage is created for the microminaturization of electronic equipment；
5. the utility model selects low-power consumption DC-DC conversion chips, the energy consumption of integrated circuit is reduced, saves the energy.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the utility model DC-DC power source conversion device module.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
The circuit theory diagrams of the utility model power converter module as shown in figure 1, including：Resistance R1, R2, R3, R4, electricity
Hold C1, C2, C3, C4, C5, inductance L1, DC-DC chip U1, Schottky diode D1.
For the utility model embodiment using input voltage VCC as 18V, output voltage VO UT is 12V, the DC-DC chips U1
Model BD9677G-TR, the chip be it is a have wide range input voltage, high accuracy, the BUCK types DC-DC of low-power consumption
Converter；The electric capacity C1 is decoupling capacitor, and from low ESR ceramic capacitors, capacitance is 4.7 μ F/50V；The electric capacity C2
It is 100nF/50V from capacitance for filter capacitor；Described resistance R1, R2 form outside bleeder circuit, there is provided accurately carry
The low-voltage lock threshold of magnetic hysteresis, resistance R1 resistances are 124K, and resistance R2 resistances are 30K, and now low-voltage lock threshold is
9.24V, hysteresis voltage width 1.24V；The electric capacity C3 is bootstrap capacitor, capacitance 100nF/50V；The inductance L1 is 47
μ H, the electric capacity C4 are 1 μ F/25V, form LC filter circuits, can effectively suppress output voltage ripple；The electric capacity C5 is from low
ESR ceramic capacitors, suppress output voltage ripple, capacitance is 10 μ F/25V；Described resistance R3, R4 are used to set output electricity
Pressure, resistance value is respectively 12K, 180K, and now output voltage is 12V；The Schottky diode D1 is revers voltage protection two
Pole pipe, model RB160M-60.
Only most preferred embodiment of the present utility model is described above, but is not to be construed as the limit to claim
System.The utility model is not limited only to above example, and its concrete structure allows to change.In every case in the utility model independent right
It is required that protection domain in the various change made in the scope of protection of the utility model.
Claims (1)
- A kind of 1. DC-DC power source conversion device module of high accuracy, low ripple, it is characterised in that the module include resistance R1, R2, R3, R4, electric capacity C1, C2, C3, C4, C5, inductance L1, DC-DC chip U1, Schottky diode D1；Electric capacity C1 one end, The VCC pin of electric capacity C2 one end, resistance R1 one end with DC-DC chips U1 are connected；Wherein DC-DC chips U1 VCC pin For voltage input end；The electric capacity C1 other end, the electric capacity C2 other end are connected with common ground end；The resistance R1 other end, EN pin of the resistance R2 one end with DC-DC chips U1 is connected；The resistance R2 other end is connected with common ground end；DC-DC cores Piece U1 BST pin are connected with electric capacity C3 one end；The electric capacity C3 other end, Schottky diode D1 negative electrode, the one of inductance L1 The LX pin with DC-DC chips U1 are held to be connected；Schottky diode D1 anode is connected with common ground end；Inductance L1's is another End, electric capacity C4 one end, resistance R4 one end, electric capacity C5 one end are all connected with；The electric capacity C4 other end, the C5 other end with Common ground end connects；The FB pin of the resistance R4 other end, resistance R3 one end with DC-DC chips U1 are connected；The resistance The R3 other end, DC-DC chips U1 GND pin is connected with common ground end；The inductance L1 other end is also the Power convert The voltage output end of module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720966122.5U CN207166356U (en) | 2017-08-04 | 2017-08-04 | A kind of DC D/C power conversion modules of high accuracy, low ripple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720966122.5U CN207166356U (en) | 2017-08-04 | 2017-08-04 | A kind of DC D/C power conversion modules of high accuracy, low ripple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207166356U true CN207166356U (en) | 2018-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720966122.5U Active CN207166356U (en) | 2017-08-04 | 2017-08-04 | A kind of DC D/C power conversion modules of high accuracy, low ripple |
Country Status (1)
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| CN (1) | CN207166356U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347321A (en) * | 2018-11-15 | 2019-02-15 | 南京铁道职业技术学院 | A kind of DC-DC Switching Power Supply of high transformation efficiency |
| CN116054688A (en) * | 2023-02-21 | 2023-05-02 | 惠州华智新能源科技有限公司 | Photovoltaic power generation energy storage system of two-way DC-DC |
-
2017
- 2017-08-04 CN CN201720966122.5U patent/CN207166356U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347321A (en) * | 2018-11-15 | 2019-02-15 | 南京铁道职业技术学院 | A kind of DC-DC Switching Power Supply of high transformation efficiency |
| CN116054688A (en) * | 2023-02-21 | 2023-05-02 | 惠州华智新能源科技有限公司 | Photovoltaic power generation energy storage system of two-way DC-DC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190614 Address after: 110179 No. 8 Xinluo Street, Hunnan District, Shenyang City, Liaoning Province Patentee after: Wu Guanting Address before: 110179 No. 8 Xinluo Street, Hunnan New District, Shenyang City, Liaoning Province Patentee before: Northern Intelligent Equipment Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201204 Address after: Room 501-295, office building, development zone, 8 Xingsheng South Road, Miyun District, Beijing Patentee after: North wisdom (Beijing) Technology Co., Ltd Address before: Xinluo Street Hunnan District of Shenyang City, Liaoning province 110179 No. 8 Patentee before: Wu Guanting |