CN201937469U - DC 110V to DC 24V power supply module - Google Patents
DC 110V to DC 24V power supply module Download PDFInfo
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- CN201937469U CN201937469U CN2011200384465U CN201120038446U CN201937469U CN 201937469 U CN201937469 U CN 201937469U CN 2011200384465 U CN2011200384465 U CN 2011200384465U CN 201120038446 U CN201120038446 U CN 201120038446U CN 201937469 U CN201937469 U CN 201937469U
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Abstract
The utility model relates to a DC 110V to DC 24V power supply module which comprises a protective circuit, a voltage conversion circuit and a voltage-stabilizing output circuit; the protective circuit is connected with the voltage conversion circuit through a filter circuit; the voltage conversion circuit is directly connected with the voltage-stabilizing output circuit; the protective circuit comprises an overcurrent protective circuit and an EMC (Electro Magnetic Compatibility) protective circuit; the overcurrent protective circuit is connected with input voltage and connected with the filter circuit through the EMC protective circuit; and the voltage conversion circuit comprises a PWM (Pulse-Width Modulation) controller, a DC 24V divider resistor, a DC 24V feedback resistor, a DC 24V isolation transformer, a filter capacitor, an MOS (Metal Oxide Semiconductor) tube, a rectifier diode and a programmable precise reference source, wherein the input voltage is connected with the DC 24V isolation transformer after passing through the protective circuit and the filter circuit and then controls the normal work of the DC 24V isolation transformer through the PWM controller, the DC 24V divider resistor, the DC 24V feedback resistor and the programmable precise reference source. The power supply module has the characteristics of wide voltage input, voltage-stabilizing high precision output, strong interference resistance, high isolation voltage and high conversion efficiency.
Description
Technical field
The utility model relates to the high voltage stabilizing output type power module of isolating of a kind of wide voltage input, relates generally at needing to produce an a kind of power module that relates to the application scenario of the power supply of input isolated from power conversion voltage stabilizing in the distributed power supply system on the wiring board.
Background technology
At present, the DC110V that exists on the market changes the DC24V power module, because the electrical isolation ability is lower, generally can not directly use, during use, need peripheral cell to match, and generally can not realize wide voltage input, efficient and reliability are low, not high, the shock-resistant ability of isolation voltage is general, poor anti jamming capability, big, the use inconvenience of small product size.
The utility model content
The purpose of this utility model be at existing DC110V change that the isolation voltage that the DC24V power module exists is not high, efficient and the problems referred to above such as reliability is low, poor anti jamming capability, provide a kind of voltage stabilizing output type DC 110V with high electrical isolation ability of wide voltage input to change the DC24V power module, this power module can be the narrow voltage of stablizing of DC24V with the wide voltage transitions of DC77V-DC137.5V.
The technical solution of the utility model is: a kind of DC110V changes the DC24V power module, described power module comprises protective circuit, voltage conversion circuit and voltage-stabilizing output circuit, protective circuit is connected with voltage conversion circuit by a filter circuit, and voltage conversion circuit directly is connected with voltage-stabilizing output circuit; Described protective circuit comprises current foldback circuit and EMC protective circuit, and current foldback circuit is connected with input voltage, and is connected with filter circuit by the EMC protective circuit; Described voltage conversion circuit comprises PWM controller, DC24V divider resistance, DC24V feedback resistance, DC24V isolating transformer, filter capacitor, metal-oxide-semiconductor, rectifier diode and accurate reference source able to programme, wherein, input voltage is connected with the DC24V isolating transformer through behind protective circuit and the filter circuit, controls DC24V isolating transformer operate as normal by PWM controller, DC24V divider resistance, DC24V feedback resistance and accurate reference source able to programme then;
Preferably, described circuit overcurrent protection is made up of fuse F1, and fuse F1 and capacitor C 1 are connected in series;
Preferably, described EMC protective circuit is made up of electric capacity (C1, C2, C3, C4), resistance R V1, inductance L 1 and diode (D1, D2, D3), wherein, after connecting with resistance R V1, capacitor C 2 is connected in parallel with capacitor C 1, be connected in series with inductance L 1 with capacitor C 3 backs in parallel again, be connected in parallel with capacitor C 4 afterwards, diode D1 and diode D2 series connection back are connected in parallel with capacitor C 4, and last and diode D3 is connected in series;
Preferably, described filter circuit is that the filter capacitor C5 in parallel with voltage conversion circuit forms, and this filter capacitor C5 and diode D3 are connected in parallel;
Preferably, the D1 of described diode and diode D2 all adopt voltage stabilizing didoe;
Preferably, described voltage-stabilizing output circuit is composed in parallel by capacitor C 7 and capacitor C 8.
The beneficial effects of the utility model are: the utility model is rational in infrastructure, reliability is high, practical, have wide voltage input, the output of voltage stabilizing high accuracy, and antijamming capability is strong, isolation voltage is high, conversion efficiency is high, can use under any abominable electric circumstance.The utility model is through current foldback circuit, and the device in the time of can making input voltage overcurrent or short circuit occur in the circuit is unlikely to be damaged; Through the protection of EMC circuit, noise in the input voltage and ripple can be reduced, antijamming capability is strong; Simultaneously, after wave circuit carries out filtering after filtration, can be the narrow voltage of voltage stabilizing of DC24V with the wide voltage transitions of importing of DC77V-DC137.5V by change-over circuit.
Description of drawings
Accompanying drawing 1 is the theory diagram of the utility model specific embodiment;
Accompanying drawing 2 is the circuit theory diagrams of the utility model specific embodiment.
Embodiment
Embodiment of the present utility model: as illustrated in fig. 1 and 2, a kind of DC110V changes the DC24V power module, described power module comprises protective circuit, voltage conversion circuit and voltage-stabilizing output circuit, protective circuit is connected with voltage conversion circuit by a filter circuit, and voltage conversion circuit directly is connected with voltage-stabilizing output circuit; Described protective circuit comprises current foldback circuit and EMC protective circuit, and current foldback circuit is connected with input voltage, and is connected with filter circuit by the EMC protective circuit; Described voltage conversion circuit comprises PWM controller, DC24V divider resistance, DC24V feedback resistance, DC24V isolating transformer, filter capacitor, metal-oxide-semiconductor, rectifier diode and accurate reference source able to programme; wherein; input voltage is connected with the DC24V isolating transformer through behind protective circuit and the filter circuit, controls DC24V isolating transformer operate as normal by PWM controller, DC24V divider resistance, DC24V feedback resistance and accurate reference source able to programme then.Circuit overcurrent protection is made up of fuse F1, and fuse F1 and capacitor C 1 are connected in series.The EMC protective circuit is made up of electric capacity (C1, C2, C3, C4), resistance R V1, inductance L 1 and diode (D1, D2, D3); wherein; after connecting with resistance R V1, capacitor C 2 is connected in parallel with capacitor C 1; be connected in series with inductance L 1 with capacitor C 3 backs in parallel again; be connected in parallel with capacitor C 4 afterwards; diode D1 and diode D2 series connection back are connected in parallel with capacitor C 4, and last and diode D3 is connected in series, and the D1 of diode and diode D2 all adopt voltage stabilizing didoe.Filter circuit is that the filter capacitor C5 in parallel with voltage conversion circuit forms, and this filter capacitor C5 and diode D3 are connected in parallel.Voltage-stabilizing output circuit is composed in parallel by capacitor C 7 and capacitor C 8.
Operation principle: input voltage vin is through after insuring F1; pass through then by capacitor C 1; C2 comes the filtering common-mode noise; RV1 absorbs peak voltage by piezo-resistance; come the filtering differential mode noise by capacitor C 3; come the filtering common-mode noise by common mode inductance L1; come filtering differential mode and common-mode noise by capacitor C 4; by voltage stabilizing didoe D1; D2 absorbs peak voltage; prevent that by diode D3 the input voltage both positive and negative polarity is reverse; thereby play the EMC protective effect; noise in the input voltage and ripple are reduced; after electrochemical capacitor C5 filtering, enter DC110V again and change the DC24V voltage conversion circuit; it mainly is that the wide voltage transition of input DC110V that will handle through EMC is the stable narrow voltage of DC24V that DC110V changes the DC24V voltage conversion circuit; input voltage is connected to the DC24V isolating transformer and gets on; then by the PWM controller; the DC24V feedback resistance; DC24V divider resistance and accurate reference source able to programme are controlled the operate as normal of isolating transformer, and the DC24V voltage after the transformation passes through capacitor C 6 at last; form stable narrow voltage of DC24V and output after the C7 filtering for other equipment uses.
Claims (6)
1. a DC110V changes the DC24V power module, it is characterized in that: described power module comprises protective circuit, voltage conversion circuit and voltage-stabilizing output circuit, protective circuit is connected with voltage conversion circuit by a filter circuit, and voltage conversion circuit directly is connected with voltage-stabilizing output circuit; Described protective circuit comprises current foldback circuit and EMC protective circuit, and current foldback circuit is connected with input voltage, and is connected with filter circuit by the EMC protective circuit; Described voltage conversion circuit comprises PWM controller, DC24V divider resistance, DC24V feedback resistance, DC24V isolating transformer, filter capacitor, metal-oxide-semiconductor, rectifier diode and accurate reference source able to programme; wherein; input voltage is connected with the DC24V isolating transformer through behind protective circuit and the filter circuit, controls DC24V isolating transformer operate as normal by PWM controller, DC24V divider resistance, DC24V feedback resistance and accurate reference source able to programme then.
2. change the DC24V power module according to the described DC110V of claim 1, it is characterized in that: described circuit overcurrent protection is made up of fuse F1, and fuse F1 and capacitor C 1 are connected in series.
3. change the DC24V power module according to the described DC110V of claim 1; it is characterized in that: described EMC protective circuit is made up of electric capacity (C1, C2, C3, C4), resistance R V1, inductance L 1 and diode (D1, D2, D3); wherein; after connecting with resistance R V1, capacitor C 2 is connected in parallel with capacitor C 1; be connected in series with inductance L 1 with capacitor C 3 backs in parallel again; be connected in parallel with capacitor C 4 afterwards, diode D1 and diode D2 series connection back are connected in parallel with capacitor C 4, and last and diode D3 is connected in series.
4. DC110V according to claim 3 changes the DC24V power module, it is characterized in that: described filter circuit is formed for the filter capacitor C5 in parallel with voltage conversion circuit, and this filter capacitor C5 and diode D3 are connected in parallel.
5. change the DC24V power module according to claim 3 or 4 any described DC110V, it is characterized in that: the D1 of described diode and diode D2 all adopt voltage stabilizing didoe.
6. DC110V according to claim 1 changes the DC24V power module, and it is characterized in that: described voltage-stabilizing output circuit is composed in parallel by capacitor C 6 and capacitor C 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200384465U CN201937469U (en) | 2011-02-15 | 2011-02-15 | DC 110V to DC 24V power supply module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200384465U CN201937469U (en) | 2011-02-15 | 2011-02-15 | DC 110V to DC 24V power supply module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937469U true CN201937469U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200384465U Expired - Lifetime CN201937469U (en) | 2011-02-15 | 2011-02-15 | DC 110V to DC 24V power supply module |
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| Country | Link |
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| CN (1) | CN201937469U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710330A (en) * | 2012-05-22 | 2012-10-03 | 青岛四方车辆研究所有限公司 | Compact type PWM (pulse-width modulation) optical fiber converter |
| CN106059296A (en) * | 2016-06-08 | 2016-10-26 | 中车青岛四方车辆研究所有限公司 | Railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection |
| CN106230251A (en) * | 2016-07-26 | 2016-12-14 | 株洲中车时代电气股份有限公司 | A kind of EMC performance boost device of DC source |
| CN112994441A (en) * | 2021-03-17 | 2021-06-18 | 合肥国轩高科动力能源有限公司 | Vehicle-mounted ECU power supply input circuit |
-
2011
- 2011-02-15 CN CN2011200384465U patent/CN201937469U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710330A (en) * | 2012-05-22 | 2012-10-03 | 青岛四方车辆研究所有限公司 | Compact type PWM (pulse-width modulation) optical fiber converter |
| CN106059296A (en) * | 2016-06-08 | 2016-10-26 | 中车青岛四方车辆研究所有限公司 | Railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection |
| CN106059296B (en) * | 2016-06-08 | 2018-11-23 | 中车青岛四方车辆研究所有限公司 | Band multiple protective applied to rail vehicle can double-voltage electric power module in parallel |
| CN106230251A (en) * | 2016-07-26 | 2016-12-14 | 株洲中车时代电气股份有限公司 | A kind of EMC performance boost device of DC source |
| CN112994441A (en) * | 2021-03-17 | 2021-06-18 | 合肥国轩高科动力能源有限公司 | Vehicle-mounted ECU power supply input circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee after: CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE Co.,Ltd. Address before: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee before: QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20160718 Address after: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee after: QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE Co.,Ltd. Address before: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee before: QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE Co.,Ltd. Patentee before: QINGDAO SIYAN RAILWAY ELECTRICAL RES DEV Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |