CN204721207U - The device of the positive and negative two dc power supply of a kind of soft start - Google Patents
The device of the positive and negative two dc power supply of a kind of soft start Download PDFInfo
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- CN204721207U CN204721207U CN201520389638.9U CN201520389638U CN204721207U CN 204721207 U CN204721207 U CN 204721207U CN 201520389638 U CN201520389638 U CN 201520389638U CN 204721207 U CN204721207 U CN 204721207U
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Abstract
The utility model discloses the device of the positive and negative two dc power supply of a kind of soft start, comprise work input power, power transfer module, external trigger signal source, insulating power supply module, control module, two amplifier modules, two solid state relay module, DC power supply, power supply indicators; The utility model principle is simple, power up according to the positive and negative power supply of electronic system or the sequential difference of power-off, power on and the difference of power-off sequential in conjunction with two solid-state relays again, the slope that in control module, two output voltage increases or reduces is set, control module is made to export two analog control signals, realize the control to two solid-state relays through two analogue amplifier modules, the positive-negative power of electronic system is synchronously loaded or power-off.
Description
Technical field
This practicality relates to control field, particularly relates to the device of the positive and negative two dc power supply of a kind of soft start.
Background technology
Current many electronic systems utilize positive and negative two dc power supply to power, but for having the load of memory function, power up or power-off must have strict requirement to electronic system.If the positive and negative power work of power supply is asynchronous, may cause, at system power-up or shutdown transient, load producing burr or interference voltage, thus the initial condition causing these to have memory function load changes, thus the normal work of influential system; If the positive and negative power supply of electronic system is asymmetric, the burr of generation or disturbing pulse may be more serious.
Utility model content
The purpose of this utility model is to provide one by software control, and the positive and negative DC power supply realizing electronic system synchronously powers up and synchronous power-off, and then eliminates the device of disturbing pulse or interference burr.
In order to realize this purpose, by the following technical solutions:
A device for the positive and negative two dc power supply of soft start, comprising:
Control signal power supply has two-way and exports, and a road outputs to insulating power supply module, and a road outputs to power transfer module;
After described insulating power supply module receives power supply, point two-way exports, and each road all outputs to amplifier module and powers;
The power supply of described power transfer module reception control signal power supply, and the signal receiving end of power transfer module is connected with outer triggering signal source;
The output of power transfer module is connected to the input of control module, and control module has two paths of signals and exports, and each road signal exports and outputs to alone an amplifier module, and each amplifier module outputs to a solid-state relay;
DC power supply has positive supply and exports and auxiliary power output, and two power supplys export and are connected to alone a solid-state relay respectively, by solid-state relay out-put supply;
The output of control module also connects LED light, for display working condition.
In technique scheme, described control module exports two-way Different Slope is down to 0V analog voltage by 3V.
In technique scheme, a wherein road of described control module exports the analog voltage increasing to 3V slope for fixing 0V, and another road exports the voltage for adjustable slope.
In technique scheme, described outer triggering signal source adopts hand push button or toggle switch to trigger.
In technique scheme, the voltage range of described its input signal of amplifier is 0V ~ 3V, and signal amplification factor is 5, and the scope of output signal is 0V ~ 15V.
Compared with prior art, the utility model principle is simple, power up according to the positive and negative power supply of electronic system or the sequential difference of power-off, power on and the difference of power-off sequential in conjunction with two solid-state relays again, the slope that in control module, two output voltage increases or reduces is set, make control module export two analog control signals, realize the control to two solid-state relays through two analogue amplifier modules, the positive-negative power of electronic system is synchronously loaded or power-off.
Accompanying drawing explanation
Fig. 1 is theory structure block diagram of the present utility model.
Embodiment
As shown in Figure 1, the device of the positive and negative two dc power supply of a kind of soft start of the present utility model, this device includes work input power, power transfer module, external trigger signal source, insulating power supply module, control module, amplifier module, solid state relay module, positive supply input, positive supply output, power supply indicator, amplifier module, solid state relay module, negative supply input, negative supply output successively from front end.
Wherein: the control signal power supply worked in input power i.e. figure, this power supply is mainly used in providing power supply to control device, and power supply is input to power transfer module and insulating power supply module.
Power transfer module is used for the operating voltage that microprocessor needs from the transfer of work input power swaps out control module, in the present embodiment, power transfer module have employed NCP5501DT33 chip, becomes the voltage of 3.3V as the working power of microprocessor in control module the 15V voltage transitions of work input power.
In the utility model, external trigger signal source is the triggering signal of manual work pattern, can by arranging push-button switch or manual toggle switch provides signal.
The 3.3V signal of telecommunication that power transfer module exports is received by control module, microprocessor after control module receives the signal of telecommunication in control module exports two-way is increased to 3V by 0V analog voltage by Different Slope, this two-way analog voltage is respectively through after the amplification of amplifier module and amplifier module, be applied to the control end of solid state relay module more respectively, then by the closed loading realizing the positive and negative power supply of electronic system of relay.In order to realize synchronous loading, can when fixing a road analog output voltage and increasing to 3V slope by 0V, another road analog output voltage of continuous adjustment is increased to the slope of 3V by 0V, until during the positive and negative power turn-on of electronic system, the disturbing pulse of electronic system load is enough little, and the slope of the two-way analog voltage determined like this is and powers up the moment required slope arranged.In like manner, after receiving the cut-off signal that external trigger signal source sends, microprocessor in control module exports two-way is down to 0V by 3V analog voltage by Different Slope, after amplifying, be applied to the control end of solid state relay module and solid state relay module more respectively, realize unloading of the positive and negative power supply of electronic system thus.In order to realize synchronous unloading, can when fixing a road analog output voltage and increasing to 3V slope by 0V, the slope of another road analog electrical output drops of continuous adjustment, until when the positive and negative power supply of electronic system disconnects, the disturbing pulse of electronic system load is enough little, and the slope of the two-way analog voltage determined like this is the required slope arranged of shutdown transient.So far, the synchronous loading of positive-negative power and synchronous unloading is completed.In this example, control module adopts STM32F100RBT6 chip as its microprocessor, its two-way analog output signal is accessed respectively the input of amplifier module and amplifier module, as the input signal of amplifier module, wherein the voltage range of microprocessor output signal is 0V ~ 3V.
Insulating power supply module 4, the power isolation module that it is unipolarity input power, bipolarity double loop power supply exports.In the present embodiment, insulating power supply module 4 adopts the WRE1215S_3WR2 power module of Jin Shengyang company, the output of its input pin connection work input power 1, as the input voltage 15V of insulating power supply module 4, an one output pin exports positive voltage+15V, another output pin exports negative voltage-15V, as the operating voltage of duplicate supply amplifier module 6 and amplifier module 11.
Amplifier module, amplifies the road analog control signal that control module exports, and sends to the control end of solid state relay module.In the present embodiment, what amplifier adopted is AD817AR chip, and+the 15V that it uses insulating power supply module to export and-15V is as its working power, and the voltage range of its input signal is 0V ~ 3V, and signal amplification factor is 5, and the scope of output signal is 0V ~ 15V.
Solid state relay module, according to the voltage value that control end receives, realizes being turned on or off to the electronic system power supply that controlled end inputs.In the present embodiment, what relay adopted is SSR-2500-H module, and the voltage range of its control end is 3V ~ 32V, and it is connected with the output pin of amplifier module.The input range of controlled end direct voltage is 24V ~ 240V, and the importation of controlled end is connected with the positive supply of electronic system, and the output of controlled end is connected with the load of electronic system.
LED light, is connected with control module, when LED light is luminous, has represented powering up of electronic system.
In the utility model, control module exports two path control signal to solid state relay module, and two of DC power supply outputs are connected respectively to a solid state relay module, be equal to is provide control signal when control module, switch in solid-state relay is merged, the power supply that DC power supply exports directly is loaded into load end, for charging to load.
All features disclosed in this specification, except mutually exclusive feature, all can combine by any way.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. a device for the positive and negative two dc power supply of soft start, is characterized in that comprising:
Control signal power supply has two-way and exports, and a road outputs to insulating power supply module, and a road outputs to power transfer module;
After described insulating power supply module receives power supply, point two-way exports, and each road all outputs to amplifier module and powers;
The power supply of described power transfer module reception control signal power supply, and the signal receiving end of power transfer module is connected with outer triggering signal source;
The output of power transfer module is connected to the input of control module, and control module has two paths of signals and exports, and each road signal exports and outputs to alone an amplifier module, and each amplifier module outputs to a solid-state relay;
DC power supply has positive supply and exports and auxiliary power output, and two power supplys export and are connected to alone a solid-state relay respectively, by solid-state relay out-put supply;
The output of control module also connects LED light, for display working condition.
2. the device of the positive and negative two dc power supply of a kind of soft start according to claim 1, is characterized in that described control module exports two-way Different Slope is down to 0V analog voltage by 3V.
3. the device of the positive and negative two dc power supply of a kind of soft start according to claim 2, it is characterized in that a wherein road of described control module exports the analog voltage increasing to 3V slope for fixing 0V, another road exports the voltage for adjustable slope.
4. the device of the positive and negative two dc power supply of a kind of soft start according to claim 1, is characterized in that described outer triggering signal source adopts hand push button or toggle switch to trigger.
5. the device of the positive and negative two dc power supply of a kind of soft start according to claim 1, it is characterized in that the voltage range of described its input signal of amplifier is 0V ~ 3V, signal amplification factor is 5, and the scope of output signal is 0V ~ 15V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520389638.9U CN204721207U (en) | 2015-06-09 | 2015-06-09 | The device of the positive and negative two dc power supply of a kind of soft start |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520389638.9U CN204721207U (en) | 2015-06-09 | 2015-06-09 | The device of the positive and negative two dc power supply of a kind of soft start |
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| Publication Number | Publication Date |
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| CN204721207U true CN204721207U (en) | 2015-10-21 |
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| CN201520389638.9U Expired - Fee Related CN204721207U (en) | 2015-06-09 | 2015-06-09 | The device of the positive and negative two dc power supply of a kind of soft start |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211300A (en) * | 2018-09-12 | 2019-01-15 | 山东省计算中心（国家超级计算济南中心） | A kind of Hall sensor batch quickly detection and calibration system and its means of communication and application |
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2015
- 2015-06-09 CN CN201520389638.9U patent/CN204721207U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211300A (en) * | 2018-09-12 | 2019-01-15 | 山东省计算中心（国家超级计算济南中心） | A kind of Hall sensor batch quickly detection and calibration system and its means of communication and application |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160609 |