CN205160397U - High -pressure linear stabilized power supply of online integrated integration - Google Patents
High -pressure linear stabilized power supply of online integrated integration Download PDFInfo
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- CN205160397U CN205160397U CN201520940475.9U CN201520940475U CN205160397U CN 205160397 U CN205160397 U CN 205160397U CN 201520940475 U CN201520940475 U CN 201520940475U CN 205160397 U CN205160397 U CN 205160397U
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Abstract
The utility model discloses a high -pressure linear stabilized power supply of online integrated integration, including frequency transformer, rectification and filter circuit, linear stabilizer control circuit, power output circuit, output filter circuit and overvoltage crowbar, AC220V NULL exports direct current VIN behind frequency transformer T1 and rectification and filter circuit, direct current VIN is through power output circuit and output filter circuit output direct current + vout and - vout, and the overvoltage crowbar cross -over connection is between direct current + vout and - vout, and linear stabilizer control circuit carries out the comparison operation after through the sampling of the output voltage to power output circuit, carries out frequency transformer 1 to power output circuit again and controls, the utility model has the characteristics of electric wire netting adaptability is strong, and the output precision of voltage regulation is high, output ripple voltage is low, output current is big, output is big, the reliability is high, environment adaptability is strong etc.
Description
Technical field
The utility model relates to a kind of voltage stabilizing circuit, specifically, relates to a kind of online integrated high-voltage linear stabilized voltage power supply.
Background technology
High-voltage linear stabilized voltage power supply is the one of series regulator, it utilizes Correctional tube Linear Amplifer principle, regulated output voltage is realized by the line drop adjusting transistor, because Correctional tube specification is selected flexibly, without the need to series connection, can realize exporting more than 100V direct current, be widely used in the high voltage supply such as laser, electrolysis field.The output voltage restriction of one chip linear stabilized power supply can be exceeded, realize High voltage output.
Utility model content
The utility model designs the online integrated high-voltage linear stabilized voltage power supply with one just in order to solve the problems of the technologies described above.
The utility model solves the technical scheme that its technical problem adopts:
A kind of online integrated high-voltage linear stabilized voltage power supply, comprises Industrial Frequency Transformer, rectification and filter circuit, linear voltage stabilization control circuit, power output circuit, output filter circuit and overvoltage crowbar; AC220V exchanges input and export direct current VIN after Industrial Frequency Transformer T1 and rectification and filter circuit, direct current VIN exports direct current+Vout and-Vout through power output circuit and output filter circuit, overvoltage crowbar is connected across between direct current+Vout and-Vout, linear voltage stabilization control circuit by carrying out comparison operation to after the output voltage sampling of power output circuit, then carries out voltage-regulation control to power output circuit; Overvoltage crowbar is made up of controllable silicon SC21, voltage stabilizing didoe Z2*, resistance R21 and electric capacity C21, export direct current+Vout to be connected with controllable silicon SC21 negative electrode, export direct current-Vout to be connected with controllable silicon SC21 anode, being connected across output direct current+Vout and controllable silicon SC21 after resistance R21 and electric capacity C21 parallel connection controls between pole, voltage stabilizing didoe Z2* negative electrode is connected with output direct current-Vout, and voltage stabilizing didoe Z2* anode and controllable silicon SC21 control extremely to be connected; Power output circuit forms by adjusting triode Q12 and Q13, direct current VIN is connected with the collector electrode of adjustment triode Q12 with Q13, the emitter of adjustment triode Q12 is connected with the base stage of adjustment triode Q13, the base stage of adjustment triode Q12 is connected to the b tie point of linear voltage stabilization control circuit, the emitter of adjustment triode Q13 is connected with output direct current+Vout by resistance R20, and the emitter simultaneously adjusting triode Q13 is connected to the I tie point of linear voltage stabilization control circuit; Voltage stabilizing Circuit tuning is made up of power circuit, operational amplifier, triode, controllable silicon and subsidiary component, by I tie point to output direct current+Vout sampling, then the in-phase end of chip IC 202 operational amplifier 1 is fed back to by resistance R211, compare with the reference voltage of end of oppisite phase, output signal is connected to b tie point after amplifying.
Described online integrated high-voltage linear stabilized voltage power supply, its shell is all-metal closed structure, adopts entity embedding.
A kind of online integrated monolithic linear stabilized voltage power supply of the utility model; input adopts Industrial Frequency Transformer step-down; direct current exports and adopts operational amplifier and adjustment triode burning voltage; adopt " shutoff formula " overcurrent protection, adopt entity embedding all-metal closed structure to improve adaptive capacity to environment.Its course of work is: alternating current 220V input first carries out isolated buck through Industrial Frequency Transformer, to meet the low voltage difference requirement of rear class adjustment triode, be converted to pulsating direct current through current rectifying and wave filtering circuit, the controlling circuit of voltage regulation of recycling operational amplifier composition realizes burning voltage by adjustment transistor base electric current and exports.Wherein, export sampling and adopt resistor divider to realize feedback circuit and carry out output voltage adjustment, input voltage is changed or load change time output voltage simultaneous adaptation adjustment, achieve the relative stability of output voltage.Series current sampling resistor on outlet line, monitoring output current, when exceeding setting threshold, powered-down exports immediately, ensures High voltage output rapid triggering defencive function when there is overcurrent.
The utility model has the following advantages compared with traditional linear power supply:
1, online mode of operation, directly accesses utility grid work.
2, output voltage is high, " shutoff formula " overcurrent protection mode.
3, export the precision of voltage regulation high, ripple voltage is low.
4, all-metal sealing, entity embedding, resistance to harsh environment for use.
5, power supply grid is compatible strong.
The beneficial effects of the utility model have that to export the precision of voltage regulation high, and output ripple voltage is low, and output voltage is high, protection fast response time, the features such as electrical network is adaptable.
Accompanying drawing explanation
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model Industrial Frequency Transformer and rectification and filter circuit schematic diagram.
Fig. 3 is the utility model power output circuit and output filter circuit schematic diagram.
Fig. 4 is the utility model output overvoltage protection circuit schematic diagram.
Fig. 5 is the utility model linear voltage stabilization control circuit schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Figure 1-5, a kind of online integrated high-voltage linear stabilized voltage power supply of the utility model, comprises Industrial Frequency Transformer, rectification and filter circuit, linear voltage stabilization control circuit, power output circuit, output filter circuit and overvoltage crowbar; AC220V exchanges input and export direct current VIN after Industrial Frequency Transformer T1 and rectification and filter circuit, direct current VIN exports direct current+Vout and-Vout through power output circuit and output filter circuit, overvoltage crowbar is connected across between direct current+Vout and-Vout, linear voltage stabilization control circuit by carrying out comparison operation to after the output voltage sampling of power output circuit, then carries out voltage-regulation control to power output circuit; Overvoltage crowbar is made up of controllable silicon SC21, voltage stabilizing didoe Z2*, resistance R21 and electric capacity C21, export direct current+Vout to be connected with controllable silicon SC21 negative electrode, export direct current-Vout to be connected with controllable silicon SC21 anode, being connected across output direct current+Vout and controllable silicon SC21 after resistance R21 and electric capacity C21 parallel connection controls between pole, voltage stabilizing didoe Z2* negative electrode is connected with output direct current-Vout, and voltage stabilizing didoe Z2* anode and controllable silicon SC21 control extremely to be connected; Power output circuit forms by adjusting triode Q12 and Q13, direct current VIN is connected with the collector electrode of adjustment triode Q12 with Q13, the emitter of adjustment triode Q12 is connected with the base stage of adjustment triode Q13, the base stage of adjustment triode Q12 is connected to the b tie point of linear voltage stabilization control circuit, the emitter of adjustment triode Q13 is connected with output direct current+Vout by resistance R20, and the emitter simultaneously adjusting triode Q13 is connected to the I tie point of linear voltage stabilization control circuit; Voltage stabilizing Circuit tuning is made up of power circuit, operational amplifier, triode, controllable silicon and subsidiary component, by I tie point to output direct current+Vout sampling, then the in-phase end of chip IC 202 operational amplifier 1 is fed back to by resistance R211, compare with the reference voltage of end of oppisite phase, output signal is connected to b tie point after amplifying.
Described online integrated high-voltage linear stabilized voltage power supply, its shell is all-metal closed structure, adopts entity embedding.
Voltage stabilizing Circuit tuning is sampled to output voltage by the divider resistance of output, then the in-phase end of operational amplifier 1 is fed back to, compare with the reference voltage of end of oppisite phase, output signal controls transistor base electric current after amplifying, to adjust triode on resistance, and then adjustment output voltage, realize output voltage relatively stable, by the sample resistance that outlet line is connected, output current is sampled, then the in-phase end of operational amplifier 2 is fed back to, compare with the reference voltage of end of oppisite phase, once exceed the current threshold of setting, operational amplifier exports high level and triggers one-way SCR, after one-way SCR conducting, the base voltage of adjustment triode is dragged down, triode will end immediately, after overcurrent is eliminated, due to the self character of one-way SCR, restarting input power just can make one-way SCR end, de-preservation, i.e. non-self-recovering type protected mode, realize in High voltage output overcurrent protection, components and parts are damaged under avoiding repeatedly high-pressure and overflowing state.Voltage stabilizing exports supply load after filter capacitor filtering.
The utility model is not limited to above-mentioned preferred forms, anyone other any or akin products identical with the utility model drawn under enlightenment of the present utility model, all drops within protection range of the present utility model.
Claims (2)
1. an online integrated high-voltage linear stabilized voltage power supply, comprises Industrial Frequency Transformer, rectification and filter circuit, linear voltage stabilization control circuit, power output circuit, output filter circuit and overvoltage crowbar; It is characterized in that: AC220V exchanges input and export direct current VIN after Industrial Frequency Transformer T1 and rectification and filter circuit, direct current VIN exports direct current+Vout and-Vout through power output circuit and output filter circuit, overvoltage crowbar is connected across between direct current+Vout and-Vout, linear voltage stabilization control circuit by carrying out comparison operation to after the output voltage sampling of power output circuit, then carries out voltage-regulation control to power output circuit; Overvoltage crowbar is made up of controllable silicon SC21, voltage stabilizing didoe Z2*, resistance R21 and electric capacity C21, export direct current+Vout to be connected with controllable silicon SC21 negative electrode, export direct current-Vout to be connected with controllable silicon SC21 anode, being connected across output direct current+Vout and controllable silicon SC21 after resistance R21 and electric capacity C21 parallel connection controls between pole, voltage stabilizing didoe Z2* negative electrode is connected with output direct current-Vout, and voltage stabilizing didoe Z2* anode and controllable silicon SC21 control extremely to be connected; Power output circuit forms by adjusting triode Q12 and Q13, direct current VIN is connected with the collector electrode of adjustment triode Q12 with Q13, the emitter of adjustment triode Q12 is connected with the base stage of adjustment triode Q13, the base stage of adjustment triode Q12 is connected to the b tie point of linear voltage stabilization control circuit, the emitter of adjustment triode Q13 is connected with output direct current+Vout by resistance R20, and the emitter simultaneously adjusting triode Q13 is connected to the I tie point of linear voltage stabilization control circuit; Voltage stabilizing Circuit tuning is made up of power circuit, operational amplifier, triode, controllable silicon and subsidiary component, by I tie point to output direct current+Vout sampling, then the in-phase end of chip IC 202 operational amplifier 1 is fed back to by resistance R211, compare with the reference voltage of end of oppisite phase, output signal is connected to b tie point after amplifying.
2. online integrated high-voltage linear stabilized voltage power supply according to claim 1, is characterized in that: shell is all-metal closed structure, adopts entity embedding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520940475.9U CN205160397U (en) | 2015-11-20 | 2015-11-20 | High -pressure linear stabilized power supply of online integrated integration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520940475.9U CN205160397U (en) | 2015-11-20 | 2015-11-20 | High -pressure linear stabilized power supply of online integrated integration |
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| Publication Number | Publication Date |
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| CN205160397U true CN205160397U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520940475.9U Active CN205160397U (en) | 2015-11-20 | 2015-11-20 | High -pressure linear stabilized power supply of online integrated integration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218477A1 (en) * | 2018-05-14 | 2019-11-21 | 武汉华星光电半导体显示技术有限公司 | Rotection circuit and display panel |
| US10778004B2 (en) | 2018-05-14 | 2020-09-15 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Protection circuit and display panel |
| CN113741605A (en) * | 2021-08-05 | 2021-12-03 | 大族激光科技产业集团股份有限公司 | Linear voltage-stabilized power supply |
-
2015
- 2015-11-20 CN CN201520940475.9U patent/CN205160397U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218477A1 (en) * | 2018-05-14 | 2019-11-21 | 武汉华星光电半导体显示技术有限公司 | Rotection circuit and display panel |
| US10778004B2 (en) | 2018-05-14 | 2020-09-15 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Protection circuit and display panel |
| CN113741605A (en) * | 2021-08-05 | 2021-12-03 | 大族激光科技产业集团股份有限公司 | Linear voltage-stabilized power supply |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |