CN101882886B - Direct dial to set the output voltage DC stabilized power supply - Google Patents
Direct dial to set the output voltage DC stabilized power supply Download PDFInfo
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- CN101882886B CN101882886B CN 201010231190 CN201010231190A CN101882886B CN 101882886 B CN101882886 B CN 101882886B CN 201010231190 CN201010231190 CN 201010231190 CN 201010231190 A CN201010231190 A CN 201010231190A CN 101882886 B CN101882886 B CN 101882886B
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Abstract
本发明公开了一种直拨设置输出电压的直流稳压电源，涉及工程测试用直流电源技术领域。它有一隔离型电源电压变换器和电压设置开关K2；隔离型电源电压变换器的副边绕组有多个电压抽头，每个电压抽头和电压设置开关K2中切换掷刀K2-1对应的一个固定接点连接；切换掷刀K2-1的另一端连接有整流滤波器；整流滤波器的输出端连接有宽范围可设置稳压器；宽范围可设置稳压器通过电压设置开关K2的切换掷刀K2-2输出；在隔离型电源电压变换器的最高电压输出端和宽范围可设置稳压器之间连接有基准电源恒流伺服系统。优点是：电路构成原理简单、成熟，性能稳定、可靠，造价低廉。
The invention discloses a direct-current stabilized power supply for directly setting the output voltage, and relates to the technical field of direct-current power supplies for engineering testing. It has an isolated power supply voltage converter and a voltage setting switch K2; the secondary winding of the isolated power supply voltage converter has a plurality of voltage taps, and each voltage tap and a fixed switch corresponding to the switching throwing knife K2-1 in the voltage setting switch K2 Contact connection; the other end of the switch throwing knife K2-1 is connected to a rectification filter; the output end of the rectification filter is connected to a wide-range adjustable voltage stabilizer; the wide-range adjustable voltage stabilizer is switched through the voltage setting switch K2 to switch the throwing knife K2-2 output; a reference power supply constant current servo system is connected between the highest voltage output terminal of the isolated power supply voltage converter and the wide range adjustable voltage stabilizer. The advantages are: the principle of the circuit is simple and mature, the performance is stable and reliable, and the cost is low.
Description
Technical field
The present invention relates to engineering test and use DC power supply, specifically is a kind of D.C. regulated power supply of direct-unplugging output voltage-setting; Especially in proportion direct dialing is provided with the D.C. regulated power supply of 11 grades of voltages of output.Be mainly used in that the power network power transmission and transforming equipment is installed, need be in the maintenance engineering to the preceding qualitative Acceptance Test that puts into operation of high-voltage switch gear and direct current relay.
Background technology
Install at the power network power transmission and transforming equipment, in the maintenance engineering, need be to the preceding qualitative Acceptance Test that puts into operation of high-voltage switch gear and direct current relay.High-voltage switch gear branch, feed motion voltage are pressed the direct current relay standard check usually, and promptly 30% rated voltage should reliably be failure to actuate, and 70% rated voltage is answered action message.Test report before high-voltage switch gear and direct current relay put into operation does not at present write down concrete voltage value usually, and the multiple that only record reliably is failure to actuate, action message voltage accounts for its rated voltage.
Summary of the invention
In order to solve the shortcoming of above-mentioned prior art, the present invention provides a kind of D.C. regulated power supply of direct-unplugging output voltage-setting; 0.1 to 1.1 times of rated voltage D.C. regulated power supply of totally 11 grades of direct-unplugging output voltage-settings can be provided, satisfy equipment qualitative measurement test needs, can test result make on-the-spot test work become simple, convenient, fast as its criterion that put into operation.
The present invention realizes with following technical scheme: a kind of D.C. regulated power supply of direct-unplugging output voltage-setting comprises that isolated supplies voltage changer and the voltage that can switch gear synchronously are provided with K switch 2; The secondary winding of isolated supplies voltage changer has a plurality of voltage taps, and each voltage tap and voltage are provided with to switch in the K switch 2 and throw a corresponding fixed contact of cutter K2-1 and be connected; Switch the other end of throwing cutter K2-1 and be connected with rectifier filter; The output of rectifier filter is connected with wide region can be provided with pressurizer; Wide region can be provided with pressurizer and throw cutter K2-2 output through the switching that voltage is provided with K switch 2; Can be provided with at the ceiling voltage output of isolated supplies voltage changer and wide region and to be connected with reference power supply constant current servo system between the pressurizer; Described reference power supply constant current servo system is made up of the half-wave rectifier that is connected in parallel on isolated supplies voltage changer ceiling voltage output, the voltage stabilizing circuit that is connected with half-wave rectifier.
The invention has the beneficial effects as follows: the ratio test voltage directly is provided, is provided with that only need stir a switching throws cutter, make test job become simply, quick, be fit to professional's work on the spot custom; Power supply constitutes the common components and parts commonly used of use, and operation parameter is arranged in the safety zone; The circuit principle of compositionality is simple, ripe, stable performance, reliable, cheap.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is principle of the invention figure;
Fig. 2 is a circuit diagram of the present invention.
Embodiment
As shown in Figure 1, the D.C. regulated power supply of direct-unplugging output voltage-setting has an isolated supplies voltage changer and the voltage that can switch gear synchronously that K switch 2 is set; The secondary winding of isolated supplies voltage changer has a plurality of voltage taps, and each voltage tap is provided with to switch in the K switch 2 with voltage throws a corresponding fixed contact connection of cutter K2-1; Switch the selectable fixed contact corresponding with it of an end of throwing cutter K2-1 and connect, the other end is connected with rectifier filter; The rectifier filter output is connected with wide region can be provided with pressurizer; Wide region can be provided with pressurizer and throw cutter K2-2 output through the switching that overvoltage is provided with K switch 2; In order to guarantee that wide region can be provided with the stable of pressurizer input electric current, can be provided with at the ceiling voltage output of isolated supplies voltage changer and wide region and to be connected with reference power supply constant current servo system between the pressurizer.
As shown in Figure 2, the secondary winding of isolated supplies voltage changer has 11 voltage taps; The K switch 2 that is provided with voltage adopts many gears porcelain voltage that switch 2 * 11 is set; Wide region can be provided with pressurizer and adopt and with voltage the corresponding accurate adjustable parallel voltage-stabilizing device TL431 of K switch 2 gear numbers to be set and to be composed in series, and promptly has 11 the adjustable parallel voltage-stabilizing device of precision TL431 to be composed in series wide region pressurizer can be set.Be connected in parallel on the half-wave rectifier of isolated supplies voltage changer secondary, the voltage stabilizing circuit that is connected with half-wave rectifier is formed reference power supply constant current servo system, for wide region can be provided with pressurizer 11 grades of high accuracy reference voltage source of can adjusting is set.11 voltage taps of isolated supplies transformer secondary winding can be provided with 11 grades of voltages, and the switching that K switch 2 is set through voltage is thrown cutter K2-1 and is connected with rectifier filter, and commutating voltage outputs to the wide region direct current stabilizer; The output voltage of the commutating voltage of rectifier filter and wide region direct current stabilizer all needs proportional setting by test; Constitute the D.C. regulated power supply that 0.1 to 1.1 times of rated voltage direct dialing is provided with output.
The concrete course of work: exchange 220 volts of line voltages and insert the isolated supplies voltage changer; Power supply indicator LED ignites and glows; Stir voltage and K switch 2 is set in the relevant position; Mains switch K1 is dialled the on-position to ON; Voltmeter
should show correspondent voltage numerical value, with that position of the switch magnitude of voltage is set is corresponding, explains that instrument is in proper working order like the voltmeter show value.Many gears porcelain voltage is provided with switch 2 * 11 and is double-deck 11 gear coaxial triggers; Cutter K2-1 is thrown in switching, K2-2 switches synchronously; Switching is thrown cutter K2-1 and is used to be provided with supply voltage, and switching is thrown cutter K2-2 and is used to be provided with output voltage.What cutter K2-1 selection was thrown in switching is the voltage that pre-sets as required, and what cutter K2-2 selection was thrown in switching is the reference voltage that can adjust.As mains switch K1 during at on-position, 11 grades of voltages that the isolated supplies voltage changer is promptly exported available 0.1 to 1.1 times of rated voltage supply to switch to be thrown cutter K2-1 and selects; And 10V voltage is used for voltmeter work.1.1 grades of ceiling voltages insert the half-wave rectifier that overvoltage protecting device Rv and VD5, VD6, C1, C2, R2 form simultaneously, are that VD9-VD19 provides constant operating current through the voltage of half-wave rectifier output through the voltage stabilizing circuit that R4, VD7, VD8, C3, VT1, C4, C5, R5 form.Need 0.1Ue22V voltage like output; Be that voltage is provided with K switch 2 and is chosen in 01 position; Switch and throw cutter K2-1 in 01 position; Switching what throw that cutter K2-1 selects incision is the about 40 volts voltages in 01 position, obtains the voltage of volt more than 50 approximately through rectifying and wave-filtering and supplies to use, and it also is in 01 position that cutter K2-2 is thrown in switching at this moment; What select incision is VD9 voltage, and adjustment R9 can make output voltage meter
show 22 volts of voltages.Like needs output 0.3Ue66 volt voltage; Then voltage is provided with K switch 2 and is chosen in 03 position; Switching what throw that cutter K2-1 selects incision is about 80 volts voltage of 03 position, obtains 100 volts of left and right sides voltages approximately through half-wave rectifier and supplies to use, and switching what throw that cutter K2-2 selects to cut this moment is the series voltage of VD9, VD10, VD11; 01; Under the situation that 02 grade is adjusted, adjustment R13 makes output voltage meter
show the 66V required voltage.0.1-1.1Ue adjusting, the voltage setting should carry out step by step from low to high.Voltage is provided with K switch 2 switches has the 0.1-1.1 position, adjusts R9-R29 respectively, makes output voltage meter
show the 0.1Ue22 volt respectively; 0.2Ue44 volt, 0.3Ue66 volt, 0.4Ue88 volt; 0.5Ue110 volt, 0.6Ue132 volt, 0.7Ue154 volt; 0.8Ue176 volt; 0.9Ue198 volt, 1.0Ue220 volt, 1.1Ue242 volt.
Operation instruction: primary cut-out (switch) is done operating characteristics handing-over Acceptance Test: the output line (clip) with power supply inserts corresponding combined floodgate, separating brake circuit earlier; Insert 220 volts of mains supplies; As need 0.3Ue66 volt voltage to do the circuit breaker test of reliably being failure to actuate; Then voltage is provided with in the K switch 2 to switch and throws cutter and dial in the 0.3Ue position; The K1 mains switch is dialled to on-position, and then output voltage meter
shows 66 volts, by exporting control button AN 3 times; To primary cut-out closing coil energising 3 times, all can not close a floodgate to qualified; As need 0.7Ue154 volt to do the primary cut-out test of reliably closing a floodgate; Then voltage switching that K switch 2 is set is thrown cutter and is dialled in the 0.7Ue position; Output voltage meter
shows 154 volts; By output control button AN, primary cut-out should reliably close a floodgate.Like existing 1.0Ue220 volt of output voltage even 1.1Ue242 volt, primary cut-out can not close a floodgate or separating brake, then possibly be that combined floodgate, sub-gate circuit are obstructed.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010231190 CN101882886B (en) | 2010-07-14 | 2010-07-14 | Direct dial to set the output voltage DC stabilized power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010231190 CN101882886B (en) | 2010-07-14 | 2010-07-14 | Direct dial to set the output voltage DC stabilized power supply |
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| Publication Number | Publication Date |
|---|---|
| CN101882886A CN101882886A (en) | 2010-11-10 |
| CN101882886B true CN101882886B (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010231190 Active CN101882886B (en) | 2010-07-14 | 2010-07-14 | Direct dial to set the output voltage DC stabilized power supply |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI652892B (en) * | 2017-07-05 | 2019-03-01 | 茂達電子股份有限公司 | Detection device and detection method of rotor position of three-phase motor |
| CN114696582B (en) * | 2020-12-29 | 2024-08-30 | 肖玉君 | Multifunctional voltage converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4853557A (en) * | 1988-05-17 | 1989-08-01 | Meier Werner A | Automotive alternator power generator for welding or use of power tools |
| US6023109A (en) * | 1992-10-19 | 2000-02-08 | Yang; Tai-Her | Multi-voltage control circuit of battery or multiple independent DC power |
| CN200944197Y (en) * | 2006-08-29 | 2007-09-05 | 深圳市金威源科技有限公司 | Linear voltage-stabilized power supply |
| CN201344948Y (en) * | 2008-12-31 | 2009-11-11 | 比亚迪股份有限公司 | Test instrument |
| CN201750355U (en) * | 2010-07-14 | 2011-02-16 | 江苏省电力公司徐州供电公司 | Direct current (DC) stabilized power supply capable of setting output voltage by directly throwing |
-
2010
- 2010-07-14 CN CN 201010231190 patent/CN101882886B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4853557A (en) * | 1988-05-17 | 1989-08-01 | Meier Werner A | Automotive alternator power generator for welding or use of power tools |
| US6023109A (en) * | 1992-10-19 | 2000-02-08 | Yang; Tai-Her | Multi-voltage control circuit of battery or multiple independent DC power |
| CN200944197Y (en) * | 2006-08-29 | 2007-09-05 | 深圳市金威源科技有限公司 | Linear voltage-stabilized power supply |
| CN201344948Y (en) * | 2008-12-31 | 2009-11-11 | 比亚迪股份有限公司 | Test instrument |
| CN201750355U (en) * | 2010-07-14 | 2011-02-16 | 江苏省电力公司徐州供电公司 | Direct current (DC) stabilized power supply capable of setting output voltage by directly throwing |
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| Publication number | Publication date |
|---|---|
| CN101882886A (en) | 2010-11-10 |
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| PB01 | Publication | ||
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Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20121029 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121029 Address after: 221006 Jiefang North Road, Jiangsu, Xuzhou, No. 20 Patentee after: Xuzhou Power Supply Company of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 221006 Jiefang North Road, Jiangsu, Xuzhou, No. 20 Patentee before: Xuzhou Power Supply Company of Jiangsu Electric Power Company |