CN205540551U - Computer power soft start management circuit - Google Patents
Computer power soft start management circuit Download PDFInfo
- Publication number
- CN205540551U CN205540551U CN201620103628.9U CN201620103628U CN205540551U CN 205540551 U CN205540551 U CN 205540551U CN 201620103628 U CN201620103628 U CN 201620103628U CN 205540551 U CN205540551 U CN 205540551U
- Authority
- CN
- China
- Prior art keywords
- resistance
- soft start
- model
- utility
- computer power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a computer power soft start management circuit increases it to the power supply output circuit in, and electrical components in the design of specific soft start circuit includes firstly to fourth resistance, electric capacity, switch tube and triode. The utility model provides a simple soft start circuit who uses realizes the soft start management of computer power, ensures that it records to burn stable fever of record ware.
Description
Technical field
The utility model discloses a kind of computer power supply soft start management circuit, relate to electric and electronic technical field.
Background technology
Voltage is slowly risen to rated voltage, such motor starting current in start-up course by zero, just can be controlled by uncontrollable being turned into of past overload impact electric current.And the size of starting current can be regulated as required.The most there is not impact torque in the overall process of electric motor starting, but smooth startup optimization, here it is soft start.Along with the raising of chip integration, soft start (soft-start) circuit has been also integrated into inside power supply chip.
Power circuit usually there will be large bulk capacitance, need the biggest surge current to electric capacity plus voltage instantaneous, it is likely that cause the reduction of input power.Soft starting circuit is exactly when power initiation, reduces surge current, makes output voltage slowly increase, and reduces the impact on input power.Inside Power Management Design, add the circuit of soft start, can ensure that cd-rom recorder stablizes burning.
Utility model content
Technical problem to be solved in the utility model is: for the defect of prior art, it is provided that a kind of computer power supply soft start management circuit.
This utility model is for solving above-mentioned technical problem by the following technical solutions:
A kind of computer power supply soft start management circuit, including first to fourth resistance, electric capacity, switching tube and audion, wherein,
Power input is connected with one end of described first electric capacity, one end of the first resistance, the source electrode of switching tube respectively, the drain electrode of switching tube is connected with the outfan of circuit, the grid of switching tube is connected with the other end of the first resistance, the other end of the first electric capacity, one end of the 4th resistance respectively, and the other end of the 4th resistance is connected with the colelctor electrode of audion；
Control signal input is connected with one end of described second resistance, and the other end of the second resistance is connected with one end, the base stage of audion of the 3rd resistance respectively, and the other end of the 3rd resistance is connected with the emitter stage of audion and ground connection.
As further preferred scheme of the present utility model, the concrete model of described switching tube is IRLML6402.
As further preferred scheme of the present utility model, the concrete model of described audion is SS8050LT.
As further preferred scheme of the present utility model, the size of described first electric capacity is 1 μ F.
As further preferred scheme of the present utility model, the size of described 4th resistance is 1k ohm.
This utility model uses above technical scheme compared with prior art, has following technical effect that the soft starting circuit designing a kind of simple use, it is achieved the soft start management of computer power supply, ensures that cd-rom recorder stablizes burning.
Accompanying drawing explanation
Fig. 1 is circuit connection diagram of the present utility model,
Wherein: R1 to R4 is first to fourth resistance, C1 is electric capacity, and Q1 is switching tube, and Q2 is audion.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining this utility model, and can not be construed to restriction of the present utility model.
Below in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail:
Circuit connection diagram of the present utility model is as it is shown in figure 1, a kind of computer power supply soft start management circuit, including first to fourth resistance, electric capacity, switching tube and audion, wherein,
Power input is connected with one end of described first electric capacity, one end of the first resistance, the source electrode of switching tube respectively, the drain electrode of switching tube is connected with the outfan of circuit, the grid of switching tube is connected with the other end of the first resistance, the other end of the first electric capacity, one end of the 4th resistance respectively, and the other end of the 4th resistance is connected with the colelctor electrode of audion；
Control signal input is connected with one end of described second resistance, and the other end of the second resistance is connected with one end, the base stage of audion of the 3rd resistance respectively, and the other end of the 3rd resistance is connected with the emitter stage of audion and ground connection.
As further preferred scheme of the present utility model, the concrete model of described switching tube is IRLML6402.
As further preferred scheme of the present utility model, the concrete model of described audion is SS8050LT.
As further preferred scheme of the present utility model, the size of described first electric capacity is 1 μ F.
As further preferred scheme of the present utility model, the size of described 4th resistance is 1k ohm.
When control signal EN_VDDx is high level, Q2 saturation conduction, Q1 grid drags down, and Q1 turns on rapidly, and power vd D exports the VDD_OUT of respective channel and burning Target Board is treated in supply.
When Q2 colelctor electrode step-down, C1 is discharged by R4, and Q1 grid voltage the most slowly declines, thus controls Q1 and slowly turn on, and makes VDD_OUTx to undergo mutation.
Above in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to make a variety of changes on the premise of without departing from this utility model objective.The above, it it is only preferred embodiment of the present utility model, not this utility model is made any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model, any those skilled in the art, in the range of without departing from technical solutions of the utility model, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solutions of the utility model content, according to technical spirit of the present utility model, within spirit of the present utility model and principle, the any simple amendment that above example is made, equivalent and improvement etc., within all still falling within the protection domain of technical solutions of the utility model.
Claims (5)
1. computer power supply soft start management circuit, it is characterised in that: include first to fourth resistance, electric capacity, switching tube and audion, wherein,
Power input is connected with one end of described electric capacity, one end of the first resistance, the source electrode of switching tube respectively, the drain electrode of switching tube is connected with the outfan of circuit, the grid of switching tube is connected with the other end of the first resistance, the other end of electric capacity, one end of the 4th resistance respectively, and the other end of the 4th resistance is connected with the colelctor electrode of audion；
Control signal input is connected with one end of described second resistance, and the other end of the second resistance is connected with one end, the base stage of audion of the 3rd resistance respectively, and the other end of the 3rd resistance is connected with the emitter stage of audion and ground connection.
2. a kind of computer power supply soft start management circuit as claimed in claim 1, it is characterised in that: the concrete model of described switching tube is IRLML6402.
3. a kind of computer power supply soft start management circuit as claimed in claim 1, it is characterised in that: the concrete model of described audion is SS8050LT.
4. a kind of computer power supply soft start management circuit as claimed in claim 1, it is characterised in that: the size of described electric capacity is 1 μ F.
5. a kind of computer power supply soft start management circuit as claimed in claim 1, it is characterised in that: the size of described 4th resistance is 1k ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103628.9U CN205540551U (en) | 2016-02-02 | 2016-02-02 | Computer power soft start management circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103628.9U CN205540551U (en) | 2016-02-02 | 2016-02-02 | Computer power soft start management circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205540551U true CN205540551U (en) | 2016-08-31 |
Family
ID=56776331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620103628.9U Expired - Fee Related CN205540551U (en) | 2016-02-02 | 2016-02-02 | Computer power soft start management circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205540551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896958A (en) * | 2016-04-22 | 2016-08-24 | 天地（常州）自动化股份有限公司 | Power supply module for mine safety monitoring sensor |
-
2016
- 2016-02-02 CN CN201620103628.9U patent/CN205540551U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896958A (en) * | 2016-04-22 | 2016-08-24 | 天地（常州）自动化股份有限公司 | Power supply module for mine safety monitoring sensor |
| CN105896958B (en) * | 2016-04-22 | 2019-06-18 | 天地（常州）自动化股份有限公司 | The power module of mine safety monitoring sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103034608B (en) | Plug-and-play circuit, interface circuit and electronic equipment assembly | |
| CN103050940B (en) | A kind of thermal-shutdown circuit based on subthreshold value metal-oxide-semiconductor | |
| CN104518654A (en) | High-voltage starting circuit | |
| CN203434954U (en) | Switching circuit with adjustable rise time and digital product | |
| CN205540551U (en) | Computer power soft start management circuit | |
| CN204290916U (en) | A kind of switching circuit | |
| CN204631677U (en) | A kind of power control circuit | |
| CN106612109B (en) | Oscillation circuit and routing equipment | |
| CN103368536B (en) | Based on the signal delay circuit of metal-oxide-semiconductor | |
| CN108599558A (en) | Control circuit based on low pressure H bridges | |
| CN201025702Y (en) | Delay circuit | |
| TW201340608A (en) | Signal processing circuit | |
| CN105652994A (en) | Voltage switching device | |
| CN203225649U (en) | Drive circuit of field effect transistor | |
| CN210807224U (en) | Level conversion circuit | |
| CN204205704U (en) | A kind of power selection circuit | |
| CN204068907U (en) | A kind of integrated triode ON-OFF control circuit | |
| CN207166478U (en) | A kind of slow electrification circuit for preventing heavy current impact | |
| CN205829596U (en) | A kind of double mutual accelerator of electric capacity positive feedback, drive circuit and multi-stage accelerator | |
| CN205545194U (en) | Touch field effect transistor alternating current switch circuit | |
| CN203896181U (en) | Voltage stabilizing circuit | |
| CN204886132U (en) | Prevent voltage pulse circuit | |
| WO2017219491A1 (en) | Battery voltage protection circuit | |
| CN104734679B (en) | Low voltage reset circuit | |
| CN220470270U (en) | Circuit for eliminating fan noise in starting instant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |