CN208283836U - A kind of digital voltage regulation module applied to high voltage power supply - Google Patents
A kind of digital voltage regulation module applied to high voltage power supply Download PDFInfo
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- CN208283836U CN208283836U CN201820917708.7U CN201820917708U CN208283836U CN 208283836 U CN208283836 U CN 208283836U CN 201820917708 U CN201820917708 U CN 201820917708U CN 208283836 U CN208283836 U CN 208283836U
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Abstract
The utility model relates to a kind of digital voltage regulation modules applied to high voltage power supply, including operation amplifier chip, resistance R1-R9, capacitor C1, capacitor C2, diode D1 and potentiometer RP1, digital voltage regulation module provided by the utility model applied to high voltage power supply, it is set between main control chip and PWM controller, the pressure regulation signal issued to main control chip is handled, the driving capability and stability of pressure regulation signal are greatly enhanced, to improve the stability of high voltage power supply output voltage.
Description
Technical field
The utility model relates to a kind of voltage regulating module, in particular to a kind of digital voltage regulation module applied to high voltage power supply.
Background technique
Currently, high voltage power supply mainly uses switch power technology, adjusted by the on and off of PWM wave control switch device
The height of output voltage is saved, to realize the regulation to high voltage package input voltage, then is connected and is loaded by high voltage package, realized to load
The output of high pressure.Regulation to high voltage package input voltage is realized by setting different voltages value to pwm chip, and high
The stability of the input voltage of briquetting directly determines whether the voltage for being output to load is suitable and stablizes, if high voltage power supply
Input signal deviation is larger, or output control is unreasonable, can all make load equipment impaired, therefore the input of pressure regulation signal is accurate
Property and stability are more important.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of digital voltage regulation module applied to high voltage power supply,
Technical solution are as follows:
A kind of digital voltage regulation module applied to high voltage power supply, including operation amplifier chip, resistance R1-R9, capacitor C1, electricity
Hold C2, Zener voltage-stabiliser tube ZD1 and potentiometer RP1；The wherein 8 pins connection 15V power supply of operation amplifier chip；3 pins and resistance
The first end of R8 is connected, and the second end of the resistance R8 is connected with the adjustable end of potentiometer RP1, and the first of the potentiometer is solid
Fixed end is grounded by resistance R9, and the second fixing end connects VCC power supply；Main control chip issue pressure regulation signal by resistance R1, R2,
R3 and R4 connects again on 2 pins of the operation amplifier chip；It is grounded between the resistance R1 and resistance R2 by capacitor C1；It is described
It is grounded between resistance R2 and resistance R3 by capacitor C2, is parallel with R5 between pin 1 and pin 2；The 1 of the operation amplifier chip
Pin is connected with the anode of the first end of R5 and Zener voltage-stabiliser tube ZD1, the cathode of Zener voltage-stabiliser tube ZD1 successively with resistance R6 and R7
It is connected in series.
Further, the digital voltage regulation module applied to high voltage power supply further includes capacitor C3, capacitor C4, resistance R11
With resistance R10；The capacitor C3 and capacitor C4 is connected in parallel on 15V feeder ear and is grounded；The resistance R10 and potentiometer RP1 second
Fixing end series connection, is grounded between the resistance R8 and pin 3 by resistance R11.
Further, the digital voltage regulation module applied to high voltage power supply further includes capacitor C5, capacitor C6, resistance R12
With Zener voltage-stabiliser tube ZD2；Between the resistance R3 and resistance R4 and it is connected to the first end of resistance R12 and the first end of capacitor C6；
Between the resistance R6 and resistance R7 and it is connected to the first end of capacitor C5 and the cathode of Zener voltage-stabiliser tube ZD2；The resistance R12's
Second end, the second end of capacitor C6, the second end of capacitor C5 and the positive of Zener voltage-stabiliser tube ZD2 are grounded.
Further, the digital voltage regulation module applied to high voltage power supply further includes capacitor C7 and capacitor C8, the electricity
The first end for holding C7 is connected with the second end of the resistance R5, and second end is connected with pin 2；The capacitor C8 and connecing 1 draws again
Between foot and 2 pins.
Preferably, the operation amplifier chip is LCM258 chip.
The beneficial effects of the utility model are: the digital voltage regulation module provided by the utility model applied to high voltage power supply,
It is set between main control chip and pwm chip, the pressure regulation signal issued to main control chip is handled, and greatly enhances pressure regulation
The driving capability and stability of signal, to improve the stability of high voltage power supply output voltage.On the other hand, reasonable by being arranged
Anti-interference can be improved in circuit, guarantees the steady operation of main control chip.
Detailed description of the invention
Fig. 1 embodiment 1 is applied to the circuit diagram of the digital voltage regulation module of high voltage power supply；
Fig. 2 embodiment 2 is applied to the circuit diagram of the digital voltage regulation module of high voltage power supply；
Fig. 3 embodiment 3 is applied to the circuit diagram of the digital voltage regulation module of high voltage power supply.
Figure of description is structural schematic diagram, is acted on without limitation practical structures, and without scaling relationship between attached drawing.
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and examples.It is right with reference to the accompanying drawings and examples
The utility model is further described；In the description of the present invention, it should be understood that term " on ", "lower",
The orientation or positional relationship of the instructions such as "inner", "outside", "front", "rear", "left", "right" is orientation based on the figure or position
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as to scope of protection of the utility model
Limitation.
Embodiment 1
The present embodiment provides a kind of digital voltage regulation modules applied to high voltage power supply, as shown in Figure 1, including operation amplifier core
Piece, resistance R1-R9, capacitor C1, capacitor C2, Zener voltage-stabiliser tube ZD1 and potentiometer RP1；Wherein 8 pins of operation amplifier chip connect
Connect 15V power supply；3 pins are non-inverting input terminal；2 pins are inverting input terminal；1 pin is output end；The tune that main control chip issues
Pressure signal is connect again by resistance R1, R2, R3 and R4 on 2 pins of the operation amplifier chip；The resistance R1 and resistance R2 it
Between be grounded by capacitor C1；It is grounded between the resistance R2 and resistance R3 by capacitor C2, is parallel between pin 1 and pin 2
R5；VCC input signal connects 3 pins with resistance R8 by potentiometer RP1；The adjustable end of potentiometer RP1 is with the resistance R8's
Second end is connected, and the first fixing end of the potentiometer is grounded by resistance R9, and the second fixing end connects VCC power supply；It is described
The output signal of operation amplifier chip passes sequentially through Zener voltage-stabiliser tube ZD1, resistance R6 and resistance R7 and exports to pwm chip
Input terminal.
Digital voltage regulation module provided in this embodiment applied to high voltage power supply, by operation amplifier chip input terminal and
The circuit of output end is rationally designed, and the pressure regulation signal of main control chip output is handled, and greatly enhances the drive of pressure regulation signal
Kinetic force and stability, to improve the stability of high voltage power supply output voltage.
Embodiment 2
As shown in Fig. 2, being applied to the digital voltage regulation module of high voltage power supply provided by the present embodiment, distinguished with embodiment 1
It is, further limits, capacitor C3 and capacitor C4, the other end of capacitor C3 and capacitor C4 is parallel on the 15V power supply circuit
It is grounded；The second fixing end of potentiometer RP1 is in series with resistance R10, is grounded between the resistance R8 and pin 3 by resistance R11.
Guaranteeing role can be played to the waveform of input signal by above-mentioned setting, improve circuit stability.
Embodiment 3
As shown in figure 3, being applied to the digital voltage regulation module of high voltage power supply provided by the present embodiment, distinguished with embodiment 2
It is, further limits, between the resistance R3 and resistance R4 and is connected to the first end of resistance R12 and the first end of capacitor C6；
Between the resistance R6 and resistance R7 and it is connected to the first end of capacitor C5 and the cathode of Zener voltage-stabiliser tube ZD2；The resistance R12's
Second end, the second end of capacitor C6, the second end of capacitor C5 and the positive of Zener voltage-stabiliser tube ZD2 are grounded.By above-mentioned setting,
The interference free performance of integrated circuit can be improved, cutting interference guarantees the stable operation of main control chip.
Above embodiments are only that preferred embodiments of the present invention are described, not to the model of the utility model
It encloses and is defined, under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to the utility model
The various changes and improvements made of technical solution, the protection scope that claims of the utility model determine should all be fallen into
It is interior.
Claims (4)
1. a kind of digital voltage regulation module applied to high voltage power supply, which is characterized in that including operation amplifier chip, resistance R1-R9,
Capacitor C1, capacitor C2, Zener voltage-stabiliser tube ZD1 and potentiometer RP1；The wherein 8 pins connection 15V power supply of operation amplifier chip；3 draw
Foot is connected with the first end of resistance R8, and the second end of the resistance R8 is connected with the adjustable end of potentiometer RP1, the potentiometer
The first fixing end be grounded by resistance R9, the second fixing end connect VCC power supply；Resistance R1, resistance R2, resistance R3 and resistance R4
It is connected after series connection with 2 pins of the operation amplifier chip；It is grounded between the resistance R1 and resistance R2 by capacitor C1；Institute
It states and is grounded between resistance R2 and resistance R3 by capacitor C2, resistance R5 is parallel between pin 1 and pin 2；The operation amplifier
1 pin of chip is connected with the anode of the first end of resistance R5 and Zener voltage-stabiliser tube ZD1, the cathode and electricity of Zener voltage-stabiliser tube ZD1
The first end of resistance R6 is connected, and the second end of resistance R6 is connected with the first end of resistance R7.
2. being applied to the digital voltage regulation module of high voltage power supply as described in claim 1, which is characterized in that described to be applied to high pressure
The digital voltage regulation module of power supply further includes capacitor C3, capacitor C4, resistance R11 and resistance R10；The capacitor C3 and capacitor C4 are in parallel
In 15V feeder ear and it is grounded；The resistance R10 connects with the second fixing end of potentiometer RP1, between the resistance R8 and pin 3
It is grounded by resistance R11.
3. being applied to the digital voltage regulation module of high voltage power supply as claimed in claim 2, which is characterized in that described to be applied to high pressure
The digital voltage regulation module of power supply further includes capacitor C5, capacitor C6, resistance R12 and Zener voltage-stabiliser tube ZD2；The resistance R3 and resistance
Between R4 and it is connected to the first end of resistance R12 and the first end of capacitor C6；Between the resistance R6 and resistance R7 and it is connected to capacitor
The first end of C5 and the cathode of Zener voltage-stabiliser tube ZD2；The second end of the resistance R12, the second end of capacitor C6, capacitor C5
The anode of two ends and Zener voltage-stabiliser tube ZD2 are grounded.
4. the digital voltage regulation module a method according to any one of claims 1-3 applied to high voltage power supply, which is characterized in that the operation
Amplification chip is LM258 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820917708.7U CN208283836U (en) | 2018-06-13 | 2018-06-13 | A kind of digital voltage regulation module applied to high voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820917708.7U CN208283836U (en) | 2018-06-13 | 2018-06-13 | A kind of digital voltage regulation module applied to high voltage power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208283836U true CN208283836U (en) | 2018-12-25 |
Family
ID=64699939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820917708.7U Active CN208283836U (en) | 2018-06-13 | 2018-06-13 | A kind of digital voltage regulation module applied to high voltage power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208283836U (en) |
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2018
- 2018-06-13 CN CN201820917708.7U patent/CN208283836U/en active Active
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