CN104967295A - Medium and small power voltage booster capable of adjusting positive and negative high voltage output - Google Patents
Medium and small power voltage booster capable of adjusting positive and negative high voltage output Download PDFInfo
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- CN104967295A CN104967295A CN201510323178.4A CN201510323178A CN104967295A CN 104967295 A CN104967295 A CN 104967295A CN 201510323178 A CN201510323178 A CN 201510323178A CN 104967295 A CN104967295 A CN 104967295A
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Abstract
The invention discloses a medium and small power voltage booster capable of adjusting positive and negative high voltage output, and the booster comprises an external power supply, a switch, and an internal adjustment device, wherein the external power supply, the switch and the internal adjustment device are mutually connected in an electrical manner. The internal adjustment device comprises a power supply unit in electrical connection with the switch, a positive high-voltage output unit, a positive voltage adjustment rotary knob, a positive high-voltage boost unit, a negative high-voltage output unit, a negative voltage adjustment rotary knob, a negative high-voltage boost unit, a high-voltage to low-voltage unit, and a display unit connected with the high-voltage to low-voltage unit, wherein the positive high-voltage boost unit is connected with the power supply unit, the positive high-voltage boost unit and the positive voltage adjustment rotary knob, the negative high-voltage boost unit is connected with the power supply unit, the negative high-voltage output unit and the negative voltage adjustment rotary knob, and the high-voltage to low-voltage unit us connected with the positive high-voltage boost unit and the negative high-voltage boost unit. The booster has a function of voltage output display, is small in size, is convenient to use, and can supply a single-channel voltage output power with the power being not less than 20 W.
Description
Technical field
The present invention relates to the middle low power voltage booster that a kind of adjustable positive or negative high voltage voltage exports.
Background technology
The application of middle low power high drive is needed at some, as in the occasions such as ultrasonic probe excitation, the atomization of liquid, high-voltage motor polarization, LED excitation, one small-sized can display translation voltage and low pressure input, degree of amplitude modulation positive or negative high voltage output device in the urgent need to and very practical.
But current Large-scale High-Pressure output equipment volume is comparatively large, carries mobile constant, be difficult to be embedded in new system yet, although power output is very high, in fact a lot of occasion does not need too high-power output.So practicality is not very high.
Have the stepup transformer of the output of some small-sized low pressure, High voltage output at present on the market, but do not have voltage output display, user does not know actual output voltage, needs not stop to measure with universal instrument.
The small-size voltage stepup transformer sold on the market, substantially only has positive high voltage to export, can export the little of negative high voltage, simultaneously can to export positive or negative high voltage, be difficult to especially find.
With the voltage changer that positive or negative high voltage exports, civil power 220V is mostly relied on to power, design and internal circuit all more complicated.The ripe Switching Power Supply that a lot of device interior adopts at present is all that 3.3V, 5V and 12V export, if this High voltage output device will be embedded into device interior, its mature and stable low-voltage power supply that internal electric source can not be utilized to provide, but need to reserve 220V power supply interface in addition, waste the power of internal electric source, too increase the cost of system.
Summary of the invention
In view of this, the middle low power voltage booster providing a kind of adjustable positive or negative high voltage voltage to export is necessary.
The middle low power voltage booster that adjustable positive or negative high voltage voltage provided by the invention exports, comprise the external power source, switch and the internal regulation device that are mutually electrically connected, wherein: described switch is in order to control connecting or disconnecting of described external power source and internal regulation device, described internal regulation device comprises: the Power supply unit be electrically connected with described switch, positive high voltage output unit, malleation adjusting knob, connect described Power supply unit simultaneously, positive high voltage output unit, the positive high voltage boosting unit of malleation adjusting knob, negative high voltage output unit, negative pressure adjusting knob, connect described Power supply unit simultaneously, negative high voltage output unit, the negative high voltage boosting unit of negative pressure adjusting knob, connect described positive high voltage boosting unit simultaneously, the high pressure of negative high voltage boosting unit turns low voltage unit, and described high pressure turns the display unit of low voltage unit in succession.
Preferably, described positive high voltage boosting unit adopts DC/DC positive high voltage booster circuit, described DC/DC positive high voltage booster circuit adopts Boost, utilize special DC/DC chip and peripheral circuit thereof, coordinate a large power winding inductance, high-power Schottky diode, and a high withstand voltage metal-oxide-semiconductor and some capacitance resistances form.
Preferably, the voltage of described positive high voltage output unit to described positive high voltage boosting unit exports.
Preferably, described malleation adjusting knob is by changing the duty ratio of described DC/DC positive high voltage booster circuit, and the lifting realizing voltage is adjustable.
Preferably, negative high voltage boosting unit adopts DC/DC negative high voltage booster circuit, described DC/DC negative high voltage booster circuit adopts single-ended forward type transformer circuit, special DC/DC negative high voltage is used to produce chip and peripheral circuit thereof, coordinate and the inductance of the same inductance value of described DC/DC positive high voltage booster circuit, diode and metal-oxide-semiconductor, inductance coil magnetic core framework in described DC/DC negative high voltage booster circuit is gone back another group coil of coiling, form a transformer, realize the reversion of voltage, form negative high voltage.
Preferably, the voltage of described negative high voltage output unit to described negative high voltage boosting unit exports.
Preferably, described negative pressure adjusting knob is by changing the duty ratio of described DC/DC negative high voltage booster circuit, and the lifting realizing voltage is adjustable.
Preferably, described high pressure turn low voltage unit utilize optocoupler high voltage is converted to low-voltage for MCU measure.
Preferably, described display unit comprises MCU, after MCU collects the low-voltage after conversion, by the low-voltage of collection divided by the ratio of dividing potential drop, to obtain the generating positive and negative voltage value before dividing potential drop, and the generating positive and negative voltage value before described dividing potential drop is shown respectively.
The design of miniaturization of the present invention can be embedded in new system, saves space, also can form product fast; There is the output display of voltage, can be used for user clearly to see current voltage output amplitude.Adopt low pressure 12V input instead of civil power 220V to input, the design risk of system can be effectively reduced, also reduce the volume of high voltage source, and be conducive to being applied in some battery powered equipment.Circuit structure of the present invention is simple, and the pcb board area taken is little, can provide the single channel voltage power output being not less than 20W.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the middle low power voltage booster preferred embodiment that the adjustable positive or negative high voltage voltage of the present invention exports.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Consulting shown in Fig. 1, is the schematic diagram of the middle low power voltage booster preferred embodiment that the adjustable positive or negative high voltage voltage of the present invention exports.
In the present embodiment, the middle low power voltage booster that adjustable positive or negative high voltage voltage exports, comprises the external power source 10, switch 20 and the internal regulation device 30 that are mutually electrically connected.
Wherein, described external power source 10 is 12V power supply.
Described switch 20 is the control switch of the middle low power voltage booster that the adjustable positive or negative high voltage voltage of the present invention exports, in order to control connecting or disconnecting of described external power source 10 and internal regulation device 30.
Described internal regulation device 30 comprises: Power supply unit 301, positive high voltage boosting unit 302, positive high voltage output unit 303, malleation adjusting knob 304, negative high voltage boosting unit 305, negative high voltage output unit 306, negative pressure adjusting knob 307, high pressure turn low voltage unit 308 and display unit 309.
Described Power supply unit 301 is connected with switch 20, and for when switch 20 is opened, the 12V introducing external power source to described internal regulation device 30 powers input.
Described positive high voltage boosting unit 302 adopts DC/DC positive high voltage booster circuit, described DC/DC positive high voltage booster circuit adopts Boost to realize, structure is comparatively simple, utilize special DC/DC chip and peripheral circuit thereof, coordinate a large power winding inductance, high-power Schottky diode, and a high withstand voltage metal-oxide-semiconductor and some capacitance resistances form, described DC/DC positive high voltage boost circuit structure is simple, and compact, can realize the power stage of more than 20W.The voltage of described positive high voltage output unit 303 to described positive high voltage boosting unit 302 exports.Described malleation adjusting knob 304 can change the duty ratio of described DC/DC positive high voltage booster circuit, thus the lifting realizing voltage is adjustable.
Described negative high voltage boosting unit 305 adopts DC/DC negative high voltage booster circuit, described DC/DC negative high voltage booster circuit adopts single-ended forward type transformer circuit to realize, use special DC/DC negative high voltage to produce chip and peripheral circuit thereof, coordinate and the inductance of the same inductance value of described DC/DC positive high voltage booster circuit, diode and metal-oxide-semiconductor.With described DC/DC positive high voltage booster circuit unlike, inductance coil magnetic core framework in described DC/DC negative high voltage booster circuit is gone back another group coil of coiling, form a transformer, realize the reversion of voltage, thus formation negative high voltage, the adjustment of its voltage amplitude is also changed in the mode changing duty ratio by negative pressure adjusting knob 307.It is also little that described negative high voltage boosting unit 305 takies board area, and structure is simple, and power also can reach more than 20W.The voltage of described negative high voltage output unit 306 to described negative high voltage boosting unit 305 exports.
Described high pressure turns low voltage unit 308 and adopts high pressure to turn low-voltage circuit, utilizes optocoupler high voltage to be converted to low-voltage and measures for MCU (Microcontroller Unit, micro-control unit).Described high pressure turns the low-voltage circuit amplitude positive voltage such as MCU can measure that also utilizes a linear optical coupling negative pressure to be converted to, thus realizes the amplitude measurement of positive or negative high voltage.
Described display unit 309 comprises MCU, the voltage of collection is multiplied by the multiple that described high pressure turns low-voltage circuit decay by described MCU, be converted into the numerical value of original voltage amplitude, and shown by eight segment numeral pipes, its voltage display mode is intuitively clear, and user can know the voltage that current system exports easily.
In order to more clearly set forth the present invention, further the course of work of the present invention is described below:
External power source 10 is introduced in internal regulation device 30 by switch 20, internal regulation device 30 is integrated with the positive high voltage boosting unit 302 that a group comprises DC/DC converter, another group comprises the negative high voltage boosting unit 305 of DC/DC converter, 12V power supply is introduced into above-mentioned two groups of boosting units, positive high voltage boosting unit 302 by Boost circuit by 12V voltage by inductance and metal-oxide-semiconductor, voltage is boosted, described positive high voltage boosting unit 302 has a Voltage Feedback pin, for detecting output voltage to change the pulsewidth of its excitation waveform for boost chip, thus change the amplitude of output voltage, with stable output high pressure.The generation of negative high voltage boosting unit 305 negative high voltage is according to the design of single-ended forward type converter circuit, utilizes transformer by the polarity inversion of booster circuit, thus obtains negative high voltage.The output voltage amplitude of positive high voltage boosting unit 302 and negative high voltage boosting unit 305 is according to regulating the voltage introducing die voltage feedback pin to realize, after output voltage is carried out dividing potential drop by divider resistance and adjustable knob by this feedback voltage, deliver into the power supply feedback pin of DC/DC chip, chip compares according to the voltage after an inner a reference source voltage and dividing potential drop, thus change output voltage, make the voltage after dividing potential drop identical with internal reference voltage.By regulating malleation adjusting knob 304 and negative pressure adjusting knob 307, dividing potential drop coefficient being changed, thus indirectly makes chip controls output voltage amplitude change.
The voltage that positive high voltage output unit 303 and negative high voltage output unit 306 export needs to measure display by the MCU of display unit 309, high pressure can not directly be connected into MCU and sample, realize so low voltage unit 308 will be turned by high pressure, the conversion of positive high voltage is fairly simple, can be realized by divider resistance, the conversion more complicated of negative high voltage, need after dividing potential drop, again negative pressure is converted to the malleation of same amplitude, could sends in MCU and detect, not so can burn MCU.Dividing potential drop is realized by divider resistance, then by an isolation optocoupler, realizes generating positive and negative voltage conversion.Two groups of voltages are sent into MCU by two analog-to-digital conversion pin of MCU and are carried out AD conversion, after MCU collects the voltage after conversion, by the ratio of the voltage of sampling divided by dividing potential drop, to obtain the magnitude of voltage before dividing potential drop, by the magnitude of voltage after conversion, be sent to two groups four eight segment numeral pipes to show, respectively generating positive and negative voltage shown.
Although the present invention is described with reference to current better embodiment; but those skilled in the art will be understood that; above-mentioned better embodiment is only used for the present invention is described; not be used for limiting protection scope of the present invention; any within the spirit and principles in the present invention scope; any modification of doing, equivalence replacement, improvement etc., all should be included within the scope of the present invention.
Claims (9)
1. a middle low power voltage booster for adjustable positive or negative high voltage voltage output, is characterized in that, comprises the external power source, switch and the internal regulation device that are mutually electrically connected, wherein:
Described switch is in order to control connecting or disconnecting of described external power source and internal regulation device;
Described internal regulation device comprises: the Power supply unit be electrically connected with described switch, positive high voltage output unit, malleation adjusting knob, connect described Power supply unit simultaneously, positive high voltage output unit, the positive high voltage boosting unit of malleation adjusting knob, negative high voltage output unit, negative pressure adjusting knob, connect described Power supply unit simultaneously, negative high voltage output unit, the negative high voltage boosting unit of negative pressure adjusting knob, connect described positive high voltage boosting unit simultaneously, the high pressure of negative high voltage boosting unit turns low voltage unit, and described high pressure turns the display unit of low voltage unit in succession.
2. the middle low power voltage booster of adjustable positive or negative high voltage voltage output as claimed in claim 1, it is characterized in that, described positive high voltage boosting unit adopts DC/DC positive high voltage booster circuit, described DC/DC positive high voltage booster circuit adopts Boost, utilize special DC/DC chip and peripheral circuit thereof, coordinate a large power winding inductance, high-power Schottky diode, and a high withstand voltage metal-oxide-semiconductor and some capacitance resistances form.
3. the middle low power voltage booster of adjustable positive or negative high voltage voltage output as claimed in claim 2, it is characterized in that, the voltage of described positive high voltage output unit to described positive high voltage boosting unit exports.
4. the middle low power voltage booster of adjustable positive or negative high voltage voltage output as claimed in claim 3, it is characterized in that, described malleation adjusting knob is by changing the duty ratio of described DC/DC positive high voltage booster circuit, and the lifting realizing voltage is adjustable.
5. the middle low power voltage booster of adjustable positive or negative high voltage voltage output as claimed in claim 1, it is characterized in that, negative high voltage boosting unit adopts DC/DC negative high voltage booster circuit, described DC/DC negative high voltage booster circuit adopts single-ended forward type transformer circuit, special DC/DC negative high voltage is used to produce chip and peripheral circuit thereof, coordinate the inductance with the same inductance value of described DC/DC positive high voltage booster circuit, diode and metal-oxide-semiconductor, inductance coil magnetic core framework in described DC/DC negative high voltage booster circuit is gone back another group coil of coiling, form a transformer, realize the reversion of voltage, form negative high voltage.
6. the middle low power voltage booster of adjustable positive or negative high voltage voltage output as claimed in claim 5, it is characterized in that, the voltage of described negative high voltage output unit to described negative high voltage boosting unit exports.
7. the middle low power voltage booster of adjustable positive or negative high voltage voltage output as claimed in claim 6, it is characterized in that, described negative pressure adjusting knob is by changing the duty ratio of described DC/DC negative high voltage booster circuit, and the lifting realizing voltage is adjustable.
8. the middle low power voltage booster that the adjustable positive or negative high voltage voltage as described in claim 4 or 7 exports, is characterized in that, described high pressure turns low voltage unit and utilizes optocoupler high voltage to be converted to low-voltage for MCU measurement.
9. the middle low power voltage booster of adjustable positive or negative high voltage voltage output as claimed in claim 8, it is characterized in that, described display unit comprises MCU, after MCU collects the low-voltage after conversion, by the ratio of the low-voltage of collection divided by dividing potential drop, to obtain the generating positive and negative voltage value before dividing potential drop, and respectively the generating positive and negative voltage value before described dividing potential drop is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323178.4A CN104967295A (en) | 2015-06-12 | 2015-06-12 | Medium and small power voltage booster capable of adjusting positive and negative high voltage output |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510323178.4A CN104967295A (en) | 2015-06-12 | 2015-06-12 | Medium and small power voltage booster capable of adjusting positive and negative high voltage output |
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| CN104967295A true CN104967295A (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510323178.4A Pending CN104967295A (en) | 2015-06-12 | 2015-06-12 | Medium and small power voltage booster capable of adjusting positive and negative high voltage output |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100434A (en) * | 2016-08-25 | 2016-11-09 | 东文高压电源（天津）股份有限公司 | A kind of frequency, dutycycle, amplitude adjustable high-voltage pulse electric source circuit |
| CN106130386A (en) * | 2016-08-28 | 2016-11-16 | 东文高压电源（天津）股份有限公司 | A kind of integrated positive/negative continuously linear adjustable high pressure output power supply circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094363A (en) * | 1998-12-21 | 2000-07-25 | Phoenixtec Power Co., Ltd. | Uninterruptible power supply with AC sine wave output and energy recycle function |
| CN101170264A (en) * | 2007-09-28 | 2008-04-30 | 中国科学院电工研究所 | A converter for energy conversion of superconductive energy storage system |
| CN103532394A (en) * | 2013-10-24 | 2014-01-22 | 华东光电集成器件研究所 | Continuously adjustable intelligent power module |
| CN204304785U (en) * | 2014-12-05 | 2015-04-29 | 天水华天微电子股份有限公司 | By the Switching Power Supply regulating the turn ratio to realize ultra-wide input voltage range |
| CN204633629U (en) * | 2015-05-27 | 2015-09-09 | 广东斯泰克电子科技有限公司 | Table top type multi output USB power source |
-
2015
- 2015-06-12 CN CN201510323178.4A patent/CN104967295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094363A (en) * | 1998-12-21 | 2000-07-25 | Phoenixtec Power Co., Ltd. | Uninterruptible power supply with AC sine wave output and energy recycle function |
| CN101170264A (en) * | 2007-09-28 | 2008-04-30 | 中国科学院电工研究所 | A converter for energy conversion of superconductive energy storage system |
| CN103532394A (en) * | 2013-10-24 | 2014-01-22 | 华东光电集成器件研究所 | Continuously adjustable intelligent power module |
| CN204304785U (en) * | 2014-12-05 | 2015-04-29 | 天水华天微电子股份有限公司 | By the Switching Power Supply regulating the turn ratio to realize ultra-wide input voltage range |
| CN204633629U (en) * | 2015-05-27 | 2015-09-09 | 广东斯泰克电子科技有限公司 | Table top type multi output USB power source |
Non-Patent Citations (1)
| Title |
|---|
| 周德海: "基于线性光藕实现精密程控高压源", 《电子测量技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100434A (en) * | 2016-08-25 | 2016-11-09 | 东文高压电源（天津）股份有限公司 | A kind of frequency, dutycycle, amplitude adjustable high-voltage pulse electric source circuit |
| CN106100434B (en) * | 2016-08-25 | 2018-06-19 | 东文高压电源（天津）股份有限公司 | The adjustable high-voltage pulse electric source circuit of a kind of frequency, duty ratio, amplitude |
| CN106130386A (en) * | 2016-08-28 | 2016-11-16 | 东文高压电源（天津）股份有限公司 | A kind of integrated positive/negative continuously linear adjustable high pressure output power supply circuit |
| CN106130386B (en) * | 2016-08-28 | 2018-06-19 | 东文高压电源（天津）股份有限公司 | A kind of adjustable high pressure output power supply circuit of integrated positive/negative continuously linear |
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Application publication date: 20151007 |
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