CN87201177U - Inductive load silicon control single phase power regulator zero triggering - Google Patents
Inductive load silicon control single phase power regulator zero triggering Download PDFInfo
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- CN87201177U CN87201177U CN198787201177U CN87201177U CN87201177U CN 87201177 U CN87201177 U CN 87201177U CN 198787201177 U CN198787201177 U CN 198787201177U CN 87201177 U CN87201177 U CN 87201177U CN 87201177 U CN87201177 U CN 87201177U
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- circuit
- zero
- current
- power regulating
- regulating eqiupment
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Abstract
The utility model discloses an inductive load silicon control single-phase alternate-current power regulator with an integrated zero triggering. The controller of the single-phase alternate-current power regulator is composed of a reduced voltage starting circuit, a time switching circuit, a zero-current triggering circuit, a zero-current trigger-pulse doubling control circuit and an overcurrent protecting circuit. The single-phase alternate-current power regulator can be frequently started before the transitional process of the inductive load is finished and adopts the reduced voltage starting circuit and the time switching circuit to suppress generating the oversize surge current so as to realize the power regulation according to the time scale. The utility model has small volume, good energy saving effect, high control precision, small pollution for an electric network and small radio frequency interference and is suitable for being used for the light regulation, the temperature control, the speed regulation of the motor and environments having explosive gas.
Description
The utility model is that integrated zero of a kind of charged sense load triggers controllable silicon single phase alternating current (A.C.) power regulating eqiupment, belongs to alternating electromotive force controller technology field, is applicable to aspects such as light modulation, temperature control, electric machine speed regulation.
Ac power adjuster is a kind of alternating electromotive force control device, can be according to load request, realize that regulating power output in the time ratio satisfies needs in the production.Ac power adjuster in the past adopts contactor, magnetic or induction voltage regulator, has occurred the silicon controlled power modulation device afterwards again.
At present, the power regulating eqiupment of charged sense load in the prior art, a kind of is the power regulating eqiupment that the contact is arranged, mostly adopt the executive component of contactor as power regulating eqiupment, when starting, need seal in the very big surge current of additional reactor (or its equipment) to prevent that load inductance from producing when starting, treat that transient process finishes after, withdraw from reactor again, operate very inconveniently, be unsuitable for frequent operation.Another kind of voltage zero-cross triggers the silicon controlled power modulation device, (sees ELEK U as a kind of power regulating eqiupment of German Democratic Republic
24U
13U
2184-140899/23DD-206-864-A), it is made up of bidirectional triode thyristor and integrated circuit voltage zero-cross on-off controller.This power regulating eqiupment only is suitable for charged resistive load, produces excessive surge current because it can not suppress to start charged inductive load effectively.
Task of the present utility model be propose compared with prior art a kind of, can charged inductive load again can charged resistive load, can frequent starting, the silicon controlled power modulation device that triggers of good energy-conserving effect, current over-zero that control precision is high.
Task of the present utility model is finished like this.Power regulating eqiupment adopts the current over-zero firing control; for being furnished with the line construction of following circuit (as Fig. 1), promptly reduced-voltage starting circuit, time commutation circuit, zero current circuits for triggering, zero current trigger impulse become dual control circuit and circuit overcurrent protection with design of Controller.Its feature is: power regulating eqiupment is suppressed to 5 to 10 times rated current to surge current before starting to the end of inductive load transient process, realize in time ratio Power Regulation, but the And frequent starting.Because adopted integrated silicon controlled toggle in the circuit, so this power regulating eqiupment volume is little, reliability significantly improves.
Concrete structure of the present utility model is provided by following examples and accompanying drawing.
Fig. 1 is the theory diagram of this power regulating eqiupment.A reduced-voltage starting circuit among the figure, b time commutation circuit, c zero current circuits for triggering, d zero current trigger impulse becomes dual control circuit, the e circuit overcurrent protection.
Fig. 2 is the line map of the reduced-voltage starting circuit of indication among Fig. 1.
Fig. 3 is a phase shift trigger each point voltage oscillogram among Fig. 2.
Fig. 4 is the line map of the time commutation circuit of indication among Fig. 1.
Fig. 5 is a circuit each point voltage oscillogram among Fig. 4.
Fig. 6 is the line map of the zero current circuits for triggering of indication among Fig. 1.
Fig. 7 is each point voltage of circuit, a current waveform figure among Fig. 6.
Fig. 8 is the schematic diagram of the utility model power regulating eqiupment in time ratio Power Regulation.
Fig. 9 becomes dual control circuit figure for the zero current trigger impulse of indication among Fig. 1.
Figure 10 is each point voltage of circuit, a current waveform figure among Fig. 9.
Figure 11 is the circuit overcurrent protection figure of Fig. 1 indication.
Figure 12 is the fitting arrangement of described power regulating eqiupment of the present utility model.
Fig. 1 is the optimum implementation of power regulating eqiupment of the present utility model.
(1) is that controllable silicon phase shift trigger, (2) are controllable silicon for OR circuit, (3) for power amplifier, (4) among Fig. 2.(5) are that starting impulse generator, (6) are rest-set flip-flop for delayer, (7) among Fig. 4.(8) are that zero cross fired controller, (2) are controllable silicon for gate circuit, (3) for power amplifier, (4) among Fig. 6.(9), (10) are that delayer, (11), (12) are gate circuit for rest-set flip-flop, (13) among Fig. 9.(14) are that inductive load, (4) are instrument transformer for rectifier, (16) for gate circuit, (17) for controllable silicon, (15) among Figure 11.
Circuit and oscillogram when implementing with reference to Fig. 2 to Figure 11 is described are set forth embodiment of the present utility model.
The reduced-voltage starting circuit as shown in Figure 2, it triggers controller (1), OR circuit (2), power amplifier (3) and controllable silicon (4) by phase shift and forms.GY03 among the figure is the multi-functional silicon controlled toggle of Shanghai Electric Appliances Science Inst's development.Each point at voltage waveform as shown in Figure 3 during the reduced-voltage starting circuit working.When power regulating eqiupment starts, by the U of the rest-set flip-flop in the time commutation circuit (7)
3The 8# end that positive pulse signal of door output is delivered to the GY03 of phase shift trigger (1) is opened its trigger impulse out gate, and the 2# end is sawtooth voltage, and the 2# end is connected with the 6# end, and U λ adjustable voltage is delivered to 5#.After U λ voltage and sawtooth voltage compared, in pulse of 7# output, the 15# end was the output voltage after modulating.The 10# end is the phase shift trigger impulse of GY03 output, and A# is the bidirectional triode thyristor anode voltage waveform.Trigger control because controllable silicon (4) carries out phase shift, its output voltage size is decided by controllable silicon (4) angle of flow, is connected on the potentiometer R of GY035# end
ECan regulate the silicon controlled angle of flow.R
EResistance be 10K Ω, R
1Resistance be 7.5K Ω.Regulator potentiometer R
E, make U λ point voltage between 2 volts～8 volts, then phase shift trigger (1) output phase shift trigger impulse phase shift range can be between 0～150 degree, and the alternating current pressure energy of controllable silicon output is controlled between 0～180 volt the realization reduced-voltage starting during reduced-voltage starting like this.
The time commutation circuit, as shown in Figure 4.It is made up of starting impulse generator (5), adjustable time delay (6), rest-set flip-flop (7).Its major function makes power regulating eqiupment exactly after phase shift triggers end-of-job, can in time switch to the zero current triggered mode of operation; it is opposite with the remanent magnetism polarity of load inductance (14) that And makes zero current trigger first half-wave polarity of controllable silicon output voltage, suppress to have the very big surge current that causes because of load inductance (14) remanent magnetism.Adjustable time delay in this circuit (6) is made up of RC integrating circuit and frequency dividing circuit.The integrating circuit parameter is that R is that 470K Ω, C are 1 microfarad.Its effect is to export triggering signal to frequency dividing circuit constantly at alternating voltage positive half wave peak value, makes frequency dividing circuit that output be arranged.The time commutation circuit is worked as follows.When power regulating eqiupment at t
1When constantly starting, the door U of starting impulse trigger (5)
2Just produce a starting impulse and deliver to the U of rest-set flip-flop (7)
3Input, making its output is high level, this signal is delivered to the 8# end of reduction voltage circuit GY03, then can open out gate, makes power regulating eqiupment by the work of phase shift triggering mode.While rest-set flip-flop (7) door U
4Be output as low level, this signal is delivered to the zero current trigger impulse and is become door U among dual control circuit Fig. 9
6Input
Seal its out gate, make zero current circuits for triggering no-output.After startup, delay time ， And at alternating voltage positive half wave peak value moment t through delayer (6)
2Export the U that rest-set flip-flop (7) are delivered in a pulse
4Input, this moment rest-set flip-flop (7) U
3Output becomes low level, U
4Be output as high level, thereby close the out gate of GY03 in the reduced-voltage starting circuit, open the out gate of zero current circuits for triggering, make power regulating eqiupment at t
2Constantly in time switch to the zero current triggered mode of operation by phase shift triggering work.Its voltage oscillogram as shown in Figure 5.
The zero current circuits for triggering, as shown in Figure 6.It triggers controller (8), gate circuit (2), power amplifier (3) and controllable silicon (4) by zero and forms.Its major function is to provide trigger impulse for controllable silicon.Zero triggers controller (8) is made of silicon controlled toggle GY03.R wherein
1Be 150K Ω, if R
1Resistance is too big, and the pulse of GY03 zero passage detection output 2# end is broadened, and will cause zero current circuits for triggering output pulse too to depart from zero point, influences controllable silicon output voltage waveforms integrality.R
1Too little, will make pulse narrowing, cause zero current circuits for triggering output pulse narrowing, it is unreliable that controllable silicon is triggered.R
9, C
2Parameter be: R
9Be 91K Ω, C
2Be 10 μ f, R
9, C
2Numerical value can determine time scale (T
1+ T
2) time (as shown in Figure 8), its parameter can be adjusted according to user's needs.This circuit is worked as follows.When power regulating eqiupment switched to the zero current triggered mode of operation by phase shift triggering work, zero out gate that triggers the GY03 of controller (8) was opened, and when being zero as load current, positive pulse of 2# end output is through C
1, R
7Deliver to the 8# end behind the differential, also be low level as long as the zero current trigger impulse becomes dual control circuit to output to the 9# end this moment, then the 10# end just can be exported the zero current trigger impulse of certain width certain amplitude, make power regulating eqiupment by the work of zero current triggering mode, the voltage of each point, current waveform are as shown in Figure 7.In addition, this circuit also has in time ratio break-make silicon controlled function.As shown in Figure 6, zero triggers the continuous sawtooth voltage of saw-toothed wave generator 14# end output of the GY03 of controller (8), and its cycle time is by C
2, R
6Numerical value decision.Sawtooth voltage is through R
8Deliver to the 6# end of voltage comparator, when 5# end input control voltage U λ changes, T in Fig. 8
1, T
2Time also changes thereupon, at T
14# end output high level can be opened the zero current trigger impulse and become dual control circuit in time, makes it be output into two zero trigger impulses, makes the power regulating eqiupment can be according to the input control signal size in time ratio Power Regulation.
The zero current trigger impulse becomes dual control circuit, and as shown in Figure 9, it is made up of delayer (9), delayer (10), rest-set flip-flop (11), (12) and gate circuit (13).Integrating circuit R in the delayer (9)
1=10K Ω～15K Ω, C
1=1.5 μ f, the main effect of delayer (9) be to make circuit alternating voltage positive half wave peak value constantly partially before among output signal such as Figure 10 (a).Integrating circuit R in the delayer (10)
2=7.5K Ω～10K Ω, C
2=5.5 μ f its role is to make circuit exchanging the back partially constantly output signal of positive half wave peak value, as (b) among Figure 10.(U among Fig. 9 when the time commutation circuit switches to the zero current triggered mode of operation
6When an input is high level), when the 4# of GY03 end is output as high level in the zero current circuits for triggering, during its 2# end output current zero-crossing pulse signal, door U
7Output (c) pulse as shown in figure 10.(b) reach (c) pulse and be sent to U
8, U
9The rest-set flip-flop of forming makes U
9Export (d) pulse.(a) and (d) be sent to U
11, U
12The rest-set flip-flop of forming makes zero current trigger impulse Cheng Shuan be controlled to double circuit output (f) pulse as shown in figure 10.As can be seen from Figure 10, (f) between two of waveform pulses two zero current trigger impulses are arranged, the pulse when first is the negative half-wave zero passage of electric current, 02 pulses when being electric current positive half wave zero passage.Therefore guaranteed the zero current trigger impulse Cheng Shuan of its output.Before speak of because the time commutation circuit switches at voltage positive half wave time to peak, remanent magnetism polarity one just is decided to be in the load inductance so trigger when finishing in the power regulating eqiupment phase shift.First is the negative half-wave zero cross fired pulse of electric current and the zero current trigger impulse becomes that dual control circuit guaranteed the output of zero current circuits for triggering, first half-wave polarity of controllable silicon output voltage is opposite with remanent magnetism polarity in the load inductance, and Here it is can effectively suppress to produce the principle of excessive surge current.If power regulating eqiupment needs interrupter duty because of load request at work, because it is two that the zero current trigger is washed into, so when power regulating eqiupment quit work, the remanent magnetism polarity one in the load inductance just was decided to be, therefore power regulating eqiupment can directly be worked with the zero current triggering mode, and needn't restart.
Circuit overcurrent protection, as shown in figure 11.When main circuit current Zeng Da And surpassed certain limit value, the protective circuit action removed to close out gate, and controllable silicon is in time ended.
The bidirectional triode thyristor of this power regulating eqiupment band 50 peaces, main circuit thyristor exchanges 220 volts of power supplys with the former limit series connection of BK-1000 type control transformer, and its pair limit connects adjustable resistance for 36 volts.Seal in quick fuse during test in the controllable silicon major loop, regulate transformer and pay the adjustable resistance that the limit connects, making primary current is 0.3A, and when then power regulating eqiupment started, the major loop surge current was no more than 3A.When primary current was 4A, the major loop surge current was no more than this power regulating eqiupment of 20A and can be suppressed at surge current in 5～10 times when starting during startup, and needn't add other equipment.
When power regulating eqiupment of the present utility model is implemented, inductive and resistive load can be started, excessive surge current can be suppressed effectively, can frequent starting, output AC voltage is complete sine wave, can reduce electrical network public hazards and radio frequency interference.It can also be as the interface of microprocessor and realizes High Precision Automatic Power Regulation.
Claims (6)
1, a kind of zero triggers the single phase alternating current (A.C.) power regulating eqiupment; comprise that bidirectional triode thyristor and integrated circuit trigger controller; it is characterized in that having adopted integrated current over-zero trigger control circuit, it becomes dual control circuit and circuit overcurrent protection partly to form by reduced-voltage starting circuit, time commutation circuit, zero current circuits for triggering, zero current trigger impulse.
2, power regulating eqiupment according to claim 1 is characterized in that the reduced-voltage starting circuit triggers controller (1), OR circuit (2), power amplifier (3) and controllable silicon (4) by phase shift and forms.
3, power regulating eqiupment according to claim 1 is characterized in that the time commutation circuit is made up of starting impulse generator (5), adjustable time delay (6), rest-set flip-flop (7).
4, power regulating eqiupment according to claim 1 is characterized in that pulse becomes dual control circuit to be made up of delayer (9), delayer (10), rest-set flip-flop (11), (12).
5, power regulating eqiupment according to claim 2 is characterized in that phase shift triggers employing GY03 integrated circuit in the controller (1), R
EResistance is 10K Ω, R
1Resistance is 7.5K Ω.
6, power regulating eqiupment according to claim 4 is characterized in that delayer (9), (10) are made of its R integrating circuit
1, R
2Be respectively 10～15K Ω, 7.5～10K Ω, C
1, C
2Be respectively 1.5 μ f, 5.5 μ f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787201177U CN87201177U (en) | 1987-03-30 | 1987-03-30 | Inductive load silicon control single phase power regulator zero triggering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787201177U CN87201177U (en) | 1987-03-30 | 1987-03-30 | Inductive load silicon control single phase power regulator zero triggering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87201177U true CN87201177U (en) | 1988-05-18 |
Family
ID=4817507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198787201177U Expired - Lifetime CN87201177U (en) | 1987-03-30 | 1987-03-30 | Inductive load silicon control single phase power regulator zero triggering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87201177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595514A (en) * | 2019-09-24 | 2019-12-20 | 中国电子科技集团公司第四十三研究所 | Phase adaptive circuit in rotary-to-digital converter and control method thereof |
-
1987
- 1987-03-30 CN CN198787201177U patent/CN87201177U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595514A (en) * | 2019-09-24 | 2019-12-20 | 中国电子科技集团公司第四十三研究所 | Phase adaptive circuit in rotary-to-digital converter and control method thereof |
| CN110595514B (en) * | 2019-09-24 | 2021-10-01 | 中国电子科技集团公司第四十三研究所 | Phase adaptive circuit in rotary-to-digital converter and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| C14 | Grant of patent or utility model | ||
| C59 | Notification | ||
| GR01 | Patent grant | ||
| RA01 | Restoration of patent right |
Deemed a waiver of patent rights publication date: 19900314 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |