CN201830132U - Silicon controlled chopped wave power-regulating driving device - Google Patents
Silicon controlled chopped wave power-regulating driving device Download PDFInfo
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- CN201830132U CN201830132U CN201020570341XU CN201020570341U CN201830132U CN 201830132 U CN201830132 U CN 201830132U CN 201020570341X U CN201020570341X U CN 201020570341XU CN 201020570341 U CN201020570341 U CN 201020570341U CN 201830132 U CN201830132 U CN 201830132U
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Abstract
The utility model discloses a silicon controlled chopped wave power-regulating driving device which is characterized in that a power supply power frequency signal is input by an eighth resistor of an alternating current power supply zero passage detection circuit and generates positive semicircular standard sawteeth waves and negative semicircular standard sawteeth waves with inclined surfaces inclining leftwards by a first triode and a second triode; the positive semicircular standard sawteeth waves and the negative semicircular standard sawteeth waves are respectively converted into positive semicircular standard sawteeth rectangular waves and negative semicircular standard sawteeth rectangular waves by a first comparator and a second comparator of a voltage time converter; and the waveforms of the positive semicircular standard sawteeth rectangular waves and the negative semicircular standard sawteeth rectangular waves are synthetized by a differentiating circuit, and then are shaped by a third voltage comparator of a waveform shaping circuit again, and shaped waveforms drive controlled silicon to output a chopped signal. The driving device has the characteristics of being low in realization cost, high in output efficiency, large in power regulating range, high in regulating precision, easy to realize modularization and the like, and is especially suitable for the application fields which need power regulation and is simple in function and sensitive to cost, such as speed regulation of motors, brightness adjustment of desk lamps, and the like.
Description
Technical field:
The utility model relates to the SCR control technical field, more specifically to the silicon controlled power modulation drive unit, is particularly suitable for the used silicon controlled power modulation drive unit of electric machine speed regulation and desk lamp brightness regulation.
Background technology:
At present, the application of controllable silicon phase modulation adjusting power is very general, the characteristics of regulating power with the method are the energy source output efficiencies that can obtain than higher, the method of present this Power Regulation can be divided into 2 kinds, a kind of is hardware phase shift Power Regulation technology, and another kind is to rely on scm software to control to realize the copped wave Power Regulation.But at present the phase shift range of hardware phase shift power regulation circuit can only be accomplished less than 90 degree, promptly power regulating range can only accomplish power output 50% to 100% between scope.The scm software Power Regulation then can be exported the total power scope of 0%-100%, but the realization cost of scm software scheme is higher relatively, and accuracy is not high.
The utility model content:
The purpose of this utility model is to overcome above-mentioned foot, and provide a kind of controllable silicon copped wave Power Regulation drive unit, its realizes that cost but is situated between between two kinds of schemes of prior art, have circuit simple and reliable, realize that cost is low, delivery efficiency is high, characteristics such as power regulating range big (0%-100% power regulating range) and easy modular implementation.
Technology solution of the present utility model is as follows:
A kind of controllable silicon copped wave Power Regulation drive unit comprises controllable silicon, and it is made up of AC power zero cross detection circuit, accurate sawtooth waveforms shaping circuit, voltage time transducer, differential circuit, waveform shaping circuit and controllable silicon;
The AC power zero cross detection circuit is made up of first triode, second triode and peripheral cell first resistance thereof, the 8th resistance, the 9th resistance, first diode, second diode, the 3rd diode, first voltage stabilizing didoe;
Accurate sawtooth waveforms shaping circuit is made up of first electric capacity, second electric capacity, the 6th resistance, the 7th resistance;
The voltage time transducer is made up of first comparator, second comparator and second resistance (R2), the 5th resistance, potentiometer;
Differential circuit is made up of the 3rd electric capacity, the 4th electric capacity, the 14 resistance, the 15 resistance;
Waveform shaping circuit is made up of tertiary voltage comparator, second voltage stabilizing didoe, the 3rd resistance, the 4th resistance;
The power supply power frequency component through the AC power zero cross detection circuit the input of the 8th resistance, through first triode, second triode generates inclined-plane accurate sawtooth waveforms of positive half cycle and the accurate sawtooth waveforms of negative half period left, positive accurate sawtooth waveforms of half cycle and the accurate sawtooth waveforms of negative half period are through first comparator of voltage time transducer, second comparator is separately converted to accurate sawtooth square wave of positive half cycle and the accurate sawtooth square wave of negative half period, positive accurate sawtooth square wave of half cycle and the accurate sawtooth square wave of negative half period synthesize through the waveform that differential circuit aligns accurate sawtooth square wave of half cycle and the accurate sawtooth square wave of negative half period, tertiary voltage comparator through waveform shaping circuit carries out waveform shaping again again, the drive waveform controllable silicon output chopping signal after the shaping.
Waveform after the described shaping is that pulse duration is the controllable silicon drive signal of 0.5～1.2mS.
The technical solution adopted in the utility model compared with prior art has following useful effect:
The power frequency component of power supply is imported by the 8th resistance, amplification is shaped to the zero-crossing pulse signal through first triode, this signal is shaped to sawtooth waveforms through the 6th resistance and first electric capacity again, and the utility model is exactly a correlation of having utilized sawtooth waveforms and time, thereby has realized controlling the silicon controlled angle of flow with the way of transferring voltage.Signal again through second triode anti-phase after, also export another road sawtooth waveforms, this road sawtooth waveforms just in time can be controlled the angle of flow of the secondary half cycle of alternating current, thereby has realized the control ability of all band total power scope.And the circuit cost that is made of these elements is lower, so the cost of scheme is still lower, if with these component package in integrated circuit the inside, can make peripheral cell of the present utility model considerably less, thereby make the Power Regulation scheme become extremely simple.
Description of drawings:
Fig. 1 is the circuit block diagram of embodiment
Fig. 2 is the circuit diagram of AC power zero cross detection circuit in the circuit diagram of embodiment, accurate sawtooth waveforms shaping circuit, voltage time transducer and differential circuit part
Fig. 3 is the circuit diagram of waveform shaping circuit and controllable silicon part in the circuit diagram of embodiment
Fig. 4 is the comparison of wave shape figure at A, B in the embodiment circuit diagram, C, D, E, F, G point place
Picture in picture 2 and Fig. 3 are electrically connected with node a
Embodiment:
Embodiment: see shown in Fig. 1～4, a kind of controllable silicon copped wave Power Regulation drive unit, comprise controllable silicon SCR 1, it is made up of AC power zero cross detection circuit, accurate sawtooth waveforms shaping circuit, voltage time transducer, differential circuit, waveform shaping circuit and controllable silicon SCR 1;
The AC power zero cross detection circuit is made up of the first triode Q1, the second triode Q2 and peripheral cell first resistance R 1 thereof, the 8th resistance R 8, the 9th resistance R 9, the first diode D1, the second diode D2, the 3rd diode D3, the first voltage stabilizing didoe Z1;
Accurate sawtooth waveforms shaping circuit is made up of first capacitor C 1, second capacitor C 2, the 6th resistance R 6, the 7th resistance R 7;
The voltage time transducer is made up of the first comparator U1A, the second comparator U2B and second resistance R 2, the 5th resistance R 5, potentiometer VR1;
Differential circuit is made up of the 3rd capacitor C 3, the 4th capacitor C the 4, the 14 resistance R the 14, the 15 resistance R 15;
Waveform shaping circuit is made up of tertiary voltage comparator U2A, the second voltage stabilizing didoe Z2, the 3rd resistance R 3, the 4th resistance R 4;
The power supply power frequency component through the AC power zero cross detection circuit 8 inputs of the 8th resistance R, through the first triode Q1, the second triode Q2 generates inclined-plane accurate sawtooth waveforms of positive half cycle and the accurate sawtooth waveforms of negative half period left, positive accurate sawtooth waveforms of half cycle and the accurate sawtooth waveforms of negative half period are through the first comparator U1A of voltage time transducer, the second comparator U2B is separately converted to accurate sawtooth square wave of positive half cycle and the accurate sawtooth square wave of negative half period, positive accurate sawtooth square wave of half cycle and the accurate sawtooth square wave of negative half period synthesize through the waveform that differential circuit aligns accurate sawtooth square wave of half cycle and the accurate sawtooth square wave of negative half period, tertiary voltage comparator U2A through waveform shaping circuit carries out waveform shaping again again, the drive waveform controllable silicon SCR 1 output chopping signal after the shaping.
Waveform after the described shaping is that pulse duration is the controllable silicon drive signal of 0.5～1.2mS.
Operation principle: power supply signal generates inclined-plane accurate sawtooth waveforms (A, B point oscillogram as shown in Figure 4) left through the first triode Q1, the second triode Q2 of AC power zero cross detection circuit.This accurate sawtooth waveforms is converted into square wave through the first comparator U1A, the second comparator U2B then, and it but is by second resistance R 2, the 5th resistance R 5 and potentiometer VR1 decision that the rising edge of square wave triggers zero-time.So just having realized triggering zero-time herein can be by the purpose of potentiometer VR1 adjusting, shown in C, D point oscillogram among Fig. 4.This waveform is handled through differential then, and the waveform of positive and negative half-wave two-way synthesized, waveform becomes shown in E point oscillogram among Fig. 4, again carry out waveform shaping through tertiary voltage comparator U2A again, make waveform become the triggered time with potentiometer VR1 adjusting, pulse duration is the controllable silicon drive signal about 1mS.Thereby realize regulating the controllable silicon conduction phase angle, reach the purpose of control load power output by potentiometer VR1.
Claims (2)
1. a controllable silicon copped wave Power Regulation drive unit comprises controllable silicon (SCR1), it is characterized in that:
It is made up of AC power zero cross detection circuit, accurate sawtooth waveforms shaping circuit, voltage time transducer, differential circuit, waveform shaping circuit and controllable silicon (SCR1);
The AC power zero cross detection circuit is made up of first triode (Q1), second triode (Q2) and peripheral cell first resistance (R1) thereof, the 8th resistance (R8), the 9th resistance (R9), first diode (D1), second diode (D2), the 3rd diode (D3), first voltage stabilizing didoe (Z1);
Accurate sawtooth waveforms shaping circuit is made up of first electric capacity (C1), second electric capacity (C2), the 6th resistance (R6), the 7th resistance (R7);
The voltage time transducer is made up of first comparator (U1A), second comparator (U2B) and second resistance (R2), the 5th resistance (R5), potentiometer (VR1);
Differential circuit is made up of the 3rd electric capacity (C3), the 4th electric capacity (C4), the 14 resistance (R14), the 15 resistance (R15);
Waveform shaping circuit is made up of tertiary voltage comparator (U2A), second voltage stabilizing didoe (Z2), the 3rd resistance (R3), the 4th resistance (R4);
The power supply power frequency component through the AC power zero cross detection circuit the 8th resistance (R8) input, through first triode (Q1), second triode (Q2) generates inclined-plane accurate sawtooth waveforms of positive half cycle and the accurate sawtooth waveforms of negative half period left, positive accurate sawtooth waveforms of half cycle and the accurate sawtooth waveforms of negative half period are through first comparator (U1A) of voltage time transducer, second comparator (U2B) is separately converted to accurate sawtooth square wave of positive half cycle and the accurate sawtooth square wave of negative half period, positive accurate sawtooth square wave of half cycle and the accurate sawtooth square wave of negative half period synthesize through the waveform that differential circuit aligns accurate sawtooth square wave of half cycle and the accurate sawtooth square wave of negative half period, the tertiary voltage comparator (U2A) that passes through waveform shaping circuit again carries out waveform shaping again, drive waveform controllable silicon (SCR1) the output chopping signal after the shaping.
2. a kind of controllable silicon copped wave Power Regulation drive unit according to claim 1 is characterized in that: the waveform after the shaping is that pulse duration is the controllable silicon drive signal of 0.5～1.2mS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020570341XU CN201830132U (en) | 2010-10-21 | 2010-10-21 | Silicon controlled chopped wave power-regulating driving device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020570341XU CN201830132U (en) | 2010-10-21 | 2010-10-21 | Silicon controlled chopped wave power-regulating driving device |
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| CN201830132U true CN201830132U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020570341XU Expired - Fee Related CN201830132U (en) | 2010-10-21 | 2010-10-21 | Silicon controlled chopped wave power-regulating driving device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984547A (en) * | 2010-10-21 | 2011-03-09 | 浙江瑞德电子科技有限公司 | Silicon controlled chopping power regulation driving device |
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- 2010-10-21 CN CN201020570341XU patent/CN201830132U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984547A (en) * | 2010-10-21 | 2011-03-09 | 浙江瑞德电子科技有限公司 | Silicon controlled chopping power regulation driving device |
| CN101984547B (en) * | 2010-10-21 | 2013-01-16 | 浙江瑞德电子科技有限公司 | Silicon controlled chopping power regulation driving device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20131021 |