CN207603457U - A kind of DSP power circuits applied to electric control system - Google Patents
A kind of DSP power circuits applied to electric control system Download PDFInfo
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- CN207603457U CN207603457U CN201721650806.0U CN201721650806U CN207603457U CN 207603457 U CN207603457 U CN 207603457U CN 201721650806 U CN201721650806 U CN 201721650806U CN 207603457 U CN207603457 U CN 207603457U
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- circuit
- resistance
- amplifier
- dsp
- operational amplifier
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Abstract
The utility model provides a kind of DSP power circuits applied to electric control system, including：Reduction voltage circuit, rectification circuit, bleeder circuit, the first operational amplifier circuit, the second operational amplifier circuit, driving output circuit, and the reduction voltage circuit, rectification circuit, bleeder circuit, the first operational amplifier circuit, the second operational amplifier circuit, driving output circuit are sequentially connected.Using the utility model, multiple voltages can be exported to DSP circuit by a connection circuit, it is and simple in structure, and the voltage exported by electric resistance partial pressure, operational amplifier circuit and triode is relatively relatively low by the transformation of voltage conversion chip output cost of implementation than in the prior art, is more suitable for and a large amount of production.
Description
Technical field
The utility model is related to the DSP power circuit technical fields of electric control system, more particularly to a kind of to be applied to electricity
The DSP power circuits of Force control system.
Background technology
At present, electrical cabinet is using installation electronic component extensively, is mainly used for, to protect the normal work of electronic component
Make.
It finds broad application in the fields such as current electronics, information, control comprising DSP circuit, DSP in Electric Appliance Cabinet.
The power supply of digital signaling system is general to select switch power module and designed, designed power supply.It is but unstable due to line voltage
Property and voltage fluctuation, and mainly pass through voltage conversion chip convert output voltage, the higher price of voltage conversion chip.
Utility model content
The utility model embodiment is designed to provide a kind of DSP power circuits applied to electric control system, purport
Multiple voltages can exported to DSP circuit, and simple in structure by a connection circuit, and pass through electric resistance partial pressure, amplifier electricity
The voltage that road and triode are exported relatively than in the prior art by the transformation of voltage conversion chip export cost of implementation compared with
It is low, it is more suitable for and a large amount of production.
In order to achieve the above objectives, the utility model embodiment discloses a kind of DSP power supplys applied to electric control system
Circuit, including：Reduction voltage circuit, rectification circuit, bleeder circuit, the first operational amplifier circuit, the second operational amplifier circuit, driving output circuit,
And the reduction voltage circuit, rectification circuit, bleeder circuit, the first operational amplifier circuit, the second operational amplifier circuit, driving output circuit are successively
It is connected；
First operational amplifier circuit includes：First voltage is connected to the positive of the first amplifier by RC filter circuits and inputs
End, the reverse input end of first amplifier are grounded by resistance (2R17), are connected to first fortune by resistance (2R19)
The output terminal put, the output terminal of first amplifier are exported by resistance (2R18) to DSP circuit；
Second operational amplifier circuit includes：The output terminal of first amplifier passes through variable resistance resistance (2W2), resistance
(2R20) is grounded, and the partial pressure output terminal of the variable resistance resistance (2W2) is connected with the reverse input end of the second amplifier, described
The positive input of second amplifier, which is connected with one end of resistance (2R21) and passes through resistance (2R22), to be grounded, the resistance
The other end of (2R21) is connected with operating voltage, and the positive input of second amplifier is connected by resistance (2R23), described
The output terminal of second amplifier is connected with DSP circuit.
The driving output circuit includes：The output terminal of second amplifier is connected to triode by resistance (2R24)
The base stage of (2VT1), the emitter ground connection of the triode (2VT1), the collector of the triode (2VT1) pass through resistance
(2R25) is connected to 5V operating voltages, and the output voltage of the collector of the triode (2VT1) is connected with DSP circuit.
Optionally, the reduction voltage circuit is made of transformer, and the rectification circuit is by diode (2D3) and capacitance (2C8)
Composition, the bleeder circuit are made of variable resistance (2W1) and resistance (2R15) partial pressure, are exported after partial pressure to DSP circuit.
Optionally, first amplifier and second amplifier are LM358 operational amplifiers.
Optionally, the resistance value of the resistance (2R19) is 10K, for the times magnification to limiting first operational amplifier circuit
Number.
Optionally, the triode (2VT1) is NPN type triode.
Using the utility model embodiment, by rectification circuit, bleeder circuit, the first operational amplifier circuit, the second operational amplifier circuit,
Driving output circuit exports different types of voltage to DSP circuit respectively, and circuit realizes that simply cost is relatively low.
Description of the drawings
Fig. 1 is the circuit diagram of the DSP power circuits provided by the utility model applied to electric control system.
Specific embodiment
The utility model is described further below in conjunction with attached drawing：
Embodiment：
Referring to Fig. 1, reduction voltage circuit is made of transformer, the voltage DVIN input diodes 2D3's after transformer exports
Anode diode 2D3 and capacitance 2C8 compositions.The voltage of input is subjected to rectification processing, bleeder circuit by variable resistance 2W1 and
Resistance 2R15 partial pressure compositions, output voltage O1 is to DSP circuit after partial pressure.
In Fig. 1, the first operational amplifier circuit includes：First voltage DDC connects by the filter circuit of resistance 2C92 and R16RC compositions
The positive input of the first amplifier 2U2A is connected to, and is filtered through capacitance 2C10；The reverse input end of first amplifier 2U2A passes through electricity
Resistance 2R17 ground connection, the output terminal that the first amplifier 2U2A is connected to by resistance 2R19, the output terminal of the first amplifier 2U2A pass through electricity
2R18 output voltages O2 is hindered to DSP circuit.The amplification factor of the operational amplifier circuit is forced to the resistance value in 2R19, the embodiment of the present invention
In, resistance namely the amplification factor of the first amplifier that 2R19 is 10K are 10 times, and amplified voltage is defeated by resistance 23R18
Go out voltage O3 to DSP circuit.
Second operational amplifier circuit includes：The output terminal of first amplifier 2U2A is connect by variable resistance resistance 2W2, resistance 2R20
Ground, the partial pressure output terminal of variable resistance resistance 2W2 are connected with the reverse input end of the second amplifier 2U2B, the second amplifier 2U2B's
Positive input, which is connected with one end of resistance 2R21 and passes through resistance 2R22, to be grounded, the other end and operating voltage of resistance 2R21
VDD is connected, and the positive input of the second amplifier 2U2B is connected by resistance 2R23, the output terminal output voltage of the second amplifier 2U2B
O4 is connected to DSP circuit.The amplification factor of second amplifier is related to the resistance value of 2R23.
Driving output circuit includes：The output terminal of second amplifier 2U2B is connected to the base of triode 2VT1 by resistance 2R24
Pole, the emitter ground connection of triode 2VT1, the collector of triode 2VT1 are connected to 5V operating voltages, and three by resistance 2R25
The output voltage of the collector of pole pipe 2VT1 is connected with DSP circuit.The voltage exported after driving by triode 2VT1
O4 can carry out the driving of circuit, be connected directly with DSP circuit, and triode 2VT1 is NPN type triode.
In the embodiment of the present invention, the first amplifier and the second amplifier are LM358 operational amplifiers, operational amplifier use cost
It tells somebody what one's real intentions are, and service life is longer compared to single voltage conversion chip, improves the service life of product.
Therefore, using the utility model, multiple voltages can be exported to DSP circuit, and structure by a connection circuit
Simply, and by electric resistance partial pressure, operational amplifier circuit and triode the voltage exported is turned relatively by voltage than in the prior art
The transformation output cost of implementation for changing chip is relatively low, is more suitable for and a large amount of production.
Each embodiment in this specification is described using relevant mode, identical similar portion between each embodiment
Point just to refer each other, and the highlights of each of the examples are difference from other examples.Especially for device reality
For applying example, since it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
One of ordinary skill in the art will appreciate that all or part of step in realization above method embodiment is can
It is completed with instructing relevant hardware by program, program can be stored in computer read/write memory medium, here institute
The storage medium claimed, such as：ROM/RAM, magnetic disc, CD etc..
The above is only the preferred embodiment of the utility model only, is not intended to limit the protection model of the utility model
It encloses.Any modification, equivalent substitution, improvement and etc. made within the spirit and principles of the present invention, are all contained in this reality
With in novel protection domain.
Claims (5)
1. a kind of DSP power circuits applied to electric control system, which is characterized in that including：Reduction voltage circuit, rectification circuit,
Bleeder circuit, the first operational amplifier circuit, the second operational amplifier circuit, driving output circuit, and the reduction voltage circuit, rectification circuit, point
Volt circuit, the first operational amplifier circuit, the second operational amplifier circuit, driving output circuit are sequentially connected；
First operational amplifier circuit includes：First voltage is connected to the positive input of the first amplifier, institute by RC filter circuits
The reverse input end for stating the first amplifier is grounded by resistance (2R17), is connected to the defeated of first amplifier by resistance (2R19)
Outlet, the output terminal of first amplifier are exported by resistance (2R18) to DSP circuit；
Second operational amplifier circuit includes：The output terminal of first amplifier passes through variable resistance resistance (2W2), resistance
(2R20) is grounded, and the partial pressure output terminal of the variable resistance resistance (2W2) is connected with the reverse input end of the second amplifier, described
The positive input of second amplifier, which is connected with one end of resistance (2R21) and passes through resistance (2R22), to be grounded, the resistance
The other end of (2R21) is connected with operating voltage, and the positive input of second amplifier is connected by resistance (2R23), described
The output terminal of second amplifier is connected with DSP circuit；
The driving output circuit includes：The output terminal of second amplifier is connected to triode (2VT1) by resistance (2R24)
Base stage, the emitter ground connection of the triode (2VT1), the collector of the triode (2VT1) passes through resistance (2R25) even
5V operating voltages are connected to, and the output voltage of the collector of the triode (2VT1) is connected with DSP circuit.
2. the DSP power circuits according to claim 1 applied to electric control system, which is characterized in that the decompression
Electric routing transformer composition, the rectification circuit are made of diode (2D3) and capacitance (2C8), and the bleeder circuit is by variable
Resistor (2W1) and resistance (2R15) partial pressure form, and are exported after partial pressure to DSP circuit.
3. the DSP power circuits according to claim 1 applied to electric control system, which is characterized in that described first
Amplifier and second amplifier are LM358 operational amplifiers.
4. the DSP power circuits according to claim 1 applied to electric control system, which is characterized in that the resistance
The resistance value of (2R19) is 10K, for the amplification factor to limiting first operational amplifier circuit.
5. the DSP power circuits according to claim 1 applied to electric control system, which is characterized in that three pole
It is NPN type triode to manage (2VT1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721650806.0U CN207603457U (en) | 2017-12-01 | 2017-12-01 | A kind of DSP power circuits applied to electric control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721650806.0U CN207603457U (en) | 2017-12-01 | 2017-12-01 | A kind of DSP power circuits applied to electric control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207603457U true CN207603457U (en) | 2018-07-10 |
Family
ID=62762583
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721650806.0U Expired - Fee Related CN207603457U (en) | 2017-12-01 | 2017-12-01 | A kind of DSP power circuits applied to electric control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207603457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109391286A (en) * | 2018-11-30 | 2019-02-26 | 平顶山学院 | Bid and purchase process information management system |
-
2017
- 2017-12-01 CN CN201721650806.0U patent/CN207603457U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109391286A (en) * | 2018-11-30 | 2019-02-26 | 平顶山学院 | Bid and purchase process information management system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 Termination date: 20201201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |