CN203039590U - Numerically-controlled voltage-regulating high-voltage direct current power supply - Google Patents
Numerically-controlled voltage-regulating high-voltage direct current power supply Download PDFInfo
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- CN203039590U CN203039590U CN 201320004764 CN201320004764U CN203039590U CN 203039590 U CN203039590 U CN 203039590U CN 201320004764 CN201320004764 CN 201320004764 CN 201320004764 U CN201320004764 U CN 201320004764U CN 203039590 U CN203039590 U CN 203039590U
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Abstract
The utility model discloses a numerically-controlled voltage-regulating high-voltage direct current power supply, which comprises a low-voltage direct-current voltage-stabilizing power supply, a chopper, a power amplification circuit, a rectifier filter voltage-stabilizing circuit, an inverter circuit, a pulse transformer, a voltage doubling rectifier circuit, a voltage divider, a single chip microcomputer control circuit and an input keyboard connected sequentially. The single chip microcomputer control circuit is also connected with the chopper. The single chip microcomputer control circuit receives the high-voltage demand value inputted by the input keyboard and then outputs the control pulse to control the switch duty ratio of the chopper. The switch duty ratio of the chopper can be adjusted in real time through comparing the sampling value of the voltage divider and the demand value, so as to stabilize the high-voltage output. The power supply has the advantages that the structure is simple, and the voltage-regulating precision is high.
Description
Technical field
The utility model relates to a kind of DC power supply device, a kind of numerical controlled voltage high-voltage DC power supply of more specifically saying so.
Background technology
Previous DC high-voltage power supply is electric main or three-phase electricity to be boosted by the power frequency high voltage transformer become AC high voltage, and rectifying and wave-filtering obtains dc high-voltage then, because frequency is low, the volume and weight of power supply is all bigger, and conversion efficiency and stability are poor.
Traditional high-voltage DC power supply utilizes single-circuit transformer or potentiometer regulation voltage, though this mode is simple to operate, the pressure regulation precision is inaccurate and useful life short.Along with switch power technology and development of computer and maturation, adopt HF switch converter technique and single-chip microcomputer control technology, the DC high-voltage power supply of developing in conjunction with the characteristics of high voltage source becomes main flow.
The utility model content
The technical problem that the utility model solves provides a kind of precision height, the simple numerical controlled voltage high-voltage DC power supply of control.
For solving the problems of the technologies described above, a kind of numerical controlled voltage high-voltage DC power supply of the utility model comprises the low-voltage direct stabilized voltage power supply, chopper, power amplification circuit, rectification filtering voltage stabilizing circuit, inverter circuit, pulse transformer, voltage doubling rectifing circuit, voltage divider, single chip machine controlling circuit and the input keyboard that link to each other successively; Described single chip machine controlling circuit also links to each other with chopper, and output control pulse is controlled the chopper switches duty ratio behind the high pressure requirements of described single chip machine controlling circuit reception input keyboard input; Compare the sampled value of voltage divider and the duty cycle of switching that requirements is adjusted chopper in real time simultaneously, export with stable high voltage.
Further, in the utility model numerical controlled voltage high-voltage DC power supply, described single chip machine controlling circuit comprises control chip, analog to digital converter and interface circuit.
Further, in the utility model numerical controlled voltage high-voltage DC power supply, the model of described control chip is STC89C52.
Further, in the utility model numerical controlled voltage high-voltage DC power supply, described inverter circuit is full bridge inverter, and it comprises the pulse generation chip of isolating chip and control switch pipe.
The utility model compared with prior art, have following significant advantage: this power supply can be electromagnetic pulse simulator primary energy is provided, and because adopt single-chip microcomputer and numerical control chopper to realize that automatic lifting is pressed and voltage stabilizing control, pressure regulation precision height, accurate positioning, long service life, system is stable.
Be described in further detail below in conjunction with the drawings and specific embodiments;
Description of drawings
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is the schematic diagram of full bridge inverter in the utility model;
Fig. 3 (a) is the schematic diagram of a two voltage doubling rectifying circuit;
Fig. 3 (b) is the work schematic diagram of two voltage doubling rectifying circuit;
Fig. 3 (c) is the another kind work schematic diagram of two voltage doubling rectifying circuit.
Embodiment
As shown in Figure 1, the utility model numerical controlled voltage high-voltage DC power supply comprises the low-voltage direct stabilized voltage power supply, chopper, power amplification circuit, rectification filtering voltage stabilizing circuit, inverter circuit, pulse transformer, voltage doubling rectifing circuit, voltage divider, single chip machine controlling circuit and the input keyboard that link to each other successively; Described single chip machine controlling circuit also links to each other with chopper, described single chip machine controlling circuit comprises control chip, analog to digital converter and interface circuit, described control chip is STC89C52 or other various model single-chip microcomputers, described inverter circuit is full bridge inverter, it comprises the pulse generation chip of isolating chip and control switch pipe, described isolating chip is IR2110, and described pulse generation chip is SG3525; Described pulse transformer is high-frequency pulse transformer.Described voltage doubling rectifing circuit can be two voltage doubling rectifying circuit or four voltage doubling rectifing circuits, and wherein four voltage doubling rectifing circuits comprise high pressure resistant electric capacity and rectification silicon stack.
The low-voltage direct stabilized voltage power supply is obtained through step-down rectifier filtering, voltage stabilizing by industrial-frequency alternating current, the constant low-voltage dc voltage of this power supply output, its output becomes the rectangular pulse of certain duty ratio through the numerical control chopper, this pulse is after power amplification, become the direct current that is not higher than primary voltage through rectifying and wave-filtering, voltage stabilizing again and supply with full bridge inverter, full bridge inverter adopts MOSFET, dc inverter is become the high frequency square wave alternating current of 20kHz, this high frequency square wave is supplied with voltage doubling rectifing circuit after high-frequency pulse transformer boosts, obtain the high voltage direct current that needs.The duty ratio of chopper switches is determined and control according to the high pressure requirements of keyboard input that by single-chip microcomputer its fine setting is determined according to the sampled value of voltage divider and the difference of requirements, and regulated in real time.
As shown in Figure 2, adopt full-bridge as the topological structure of circuit.Wherein the selection of switching tube is particularly important, is related to success or failure and the efficient of inversion, chooses IRFP 460 among the design as main switch, and its pulse is provided by SG3525.Drive circuit is the interface between power electronic device main circuit and the control circuit, and good drive circuit design is all significant to operational efficiency, reliability and the fail safe of system.For numerical control system, the switch of power circuit disturbs very big, if use non-isolated drive circuit, interference signal may influence the normal operation of control system, the design takes IR2110 as isolating chip, and 2110 chips of IR company will integrate for the function of the power switch pipe that drives full-bridge, as long as add a small amount of peripheral components, just can provide the driving signal up to hundreds of KHz.
Fig. 3 (a) is the schematic diagram of a two voltage doubling rectifying circuit.Fig. 3 (b) and Fig. 3 (c) have indicated the operation principle of circuit respectively.In order to make more short and sweet the presenting of circuit working state, we suppose instantaneous polarity such as Fig. 3 (b) of transformer, at this constantly, circuit is in the negative half period of alternating voltage, that is to say at this constantly, the lower end of transformer is positive voltage, and the upper end of transformer is negative voltage, at this moment diode D
BConducting just is similar to short circuit (at this moment diode
D ABy), at this moment, electric capacity
C 1Be in charged state, reach the crest voltage 2 of transformer output
U M, polarity is that a right positive left side is negative during the electric capacity charging.Marquis when alternating voltage is in positive half cycle, diode D
BEnd,
D AConducting meanwhile begins to capacitor
C 2Charging.Be added in capacitor this moment
C 2On voltage just should be peak values of ac voltage and electric capacity
C 1Last storage voltage and, just 2
U M, shown in Fig. 3 (c).This voltage also is added in diode D as can be seen
BOn, and this moment diode D
BEnd.So D
BThe peak-inverse voltage that bears just is 2
U MChange next negative half period into constantly at alternating voltage, diode D
AEnd D
BConducting, electric capacity at this moment
C 2Last storage voltage is 2
U M, therefore
D AThe inverted peaks voltage that bears is 2
U M
Claims (5)
1. a numerical controlled voltage high-voltage DC power supply is characterized in that: comprise the low-voltage direct stabilized voltage power supply, chopper, power amplification circuit, rectification filtering voltage stabilizing circuit, inverter circuit, pulse transformer, voltage doubling rectifing circuit, voltage divider, single chip machine controlling circuit and the input keyboard that link to each other successively; Described single chip machine controlling circuit also links to each other with chopper, and output control pulse is controlled the chopper switches duty ratio behind the high pressure requirements of described single chip machine controlling circuit reception input keyboard input; Compare the sampled value of voltage divider and the duty cycle of switching that requirements is adjusted chopper in real time simultaneously, export with stable high voltage.
2. numerical controlled voltage high-voltage DC power supply according to claim 1, it is characterized in that: described single chip machine controlling circuit comprises control chip, analog to digital converter and interface circuit.
3. numerical controlled voltage high-voltage DC power supply according to claim 2, it is characterized in that: described control chip is STC89C52.
4. numerical controlled voltage high-voltage DC power supply according to claim 1, it is characterized in that: described inverter circuit is full bridge inverter, it comprises the pulse generation chip of isolating chip and control switch pipe.
5. numerical controlled voltage high-voltage DC power supply according to claim 1, it is characterized in that: described voltage doubling rectifing circuit is two voltage doubling rectifying circuit or four voltage doubling rectifing circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004764 CN203039590U (en) | 2013-01-06 | 2013-01-06 | Numerically-controlled voltage-regulating high-voltage direct current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004764 CN203039590U (en) | 2013-01-06 | 2013-01-06 | Numerically-controlled voltage-regulating high-voltage direct current power supply |
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| CN203039590U true CN203039590U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320004764 Expired - Fee Related CN203039590U (en) | 2013-01-06 | 2013-01-06 | Numerically-controlled voltage-regulating high-voltage direct current power supply |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104135157A (en) * | 2014-07-07 | 2014-11-05 | 中国电子科技集团公司第四十一研究所 | Power conversion circuit of high-voltage power supply |
| CN104617778A (en) * | 2015-02-10 | 2015-05-13 | 兰州空间技术物理研究所 | Low-current output high-voltage power supply circuit wide in input voltage range and high in load regulation rate |
| CN105634304A (en) * | 2016-03-25 | 2016-06-01 | 苏州华电电气股份有限公司 | Intelligent direct-current high-stability high-voltage generator |
| CN110196613A (en) * | 2019-05-28 | 2019-09-03 | 电子科技大学 | A kind of power supply device for DUT in integrated circuit test system |
| CN112098694A (en) * | 2020-09-07 | 2020-12-18 | 绍兴文理学院元培学院 | High-precision safe direct-current high-voltage source |
| CN112394335A (en) * | 2020-11-16 | 2021-02-23 | 江苏亮点光电研究有限公司 | Laser range finder circuit of wide region power supply |
| CN116317536A (en) * | 2023-05-19 | 2023-06-23 | 青岛艾诺仪器有限公司 | High-voltage non-overshoot direct-current power supply |
-
2013
- 2013-01-06 CN CN 201320004764 patent/CN203039590U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104135157A (en) * | 2014-07-07 | 2014-11-05 | 中国电子科技集团公司第四十一研究所 | Power conversion circuit of high-voltage power supply |
| CN104617778A (en) * | 2015-02-10 | 2015-05-13 | 兰州空间技术物理研究所 | Low-current output high-voltage power supply circuit wide in input voltage range and high in load regulation rate |
| CN105634304A (en) * | 2016-03-25 | 2016-06-01 | 苏州华电电气股份有限公司 | Intelligent direct-current high-stability high-voltage generator |
| CN110196613A (en) * | 2019-05-28 | 2019-09-03 | 电子科技大学 | A kind of power supply device for DUT in integrated circuit test system |
| CN112098694A (en) * | 2020-09-07 | 2020-12-18 | 绍兴文理学院元培学院 | High-precision safe direct-current high-voltage source |
| CN112098694B (en) * | 2020-09-07 | 2023-11-24 | 绍兴文理学院元培学院 | High-precision safe direct-current high-voltage source |
| CN112394335A (en) * | 2020-11-16 | 2021-02-23 | 江苏亮点光电研究有限公司 | Laser range finder circuit of wide region power supply |
| CN116317536A (en) * | 2023-05-19 | 2023-06-23 | 青岛艾诺仪器有限公司 | High-voltage non-overshoot direct-current power supply |
| CN116317536B (en) * | 2023-05-19 | 2023-08-15 | 青岛艾诺仪器有限公司 | High-voltage non-overshoot direct-current power supply |
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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 |
Granted publication date: 20130703 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |