CN109922576A - A kind of fixation is released the control circuit and control method of time - Google Patents
A kind of fixation is released the control circuit and control method of time Download PDFInfo
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- CN109922576A CN109922576A CN201910304441.3A CN201910304441A CN109922576A CN 109922576 A CN109922576 A CN 109922576A CN 201910304441 A CN201910304441 A CN 201910304441A CN 109922576 A CN109922576 A CN 109922576A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 230000005669 field effect Effects 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052710 silicon Inorganic materials 0.000 abstract description 32
- 239000010703 silicon Substances 0.000 abstract description 32
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000003990 capacitor Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention belongs to electronic circuit technology field, provides a kind of fixation and release the control circuit and control method of time, trigger signal is obtained by detection module and is transmitted；Timing module starts to carry out timing after receiving trigger signal, and after reaching preset time, exports timing end signal；Control module is according to timing end signal, output control signal；Module of releasing within a preset time releases to electric current according to control signal；And when control circuit power down, detection module, timing module, control module and module of releasing carry out power-off reset automatically.It is thus achieved that all modules after power-off reset, can carry out the logic control of a new round；It is released the time, be can reach in silicon-controlled opening angle maximum, system working efficiency is higher by fixation, and during controllable silicon light modulation, when main road electric current is lower than silicon-controlled maintenance electric current, remain silicon-controlled normally-open by leakage current, so that system worked well.
Description
Technical field
It releases the control circuit and controlling party of time the invention belongs to electronic circuit technology field more particularly to a kind of fixation
Method.
Background technique
It is silicon-controlled and in silicon-controlled be connected when accessing in the control system of electronic circuit, need minimum maintenance
Electric current will lead to silicon-controlled shutdown if the electric current of control system is less than extinction current.Optionally, it dims and leads in LED
The LED in domain, especially access controllable silicon light modulation dims field, when gauze voltage is less than LED conducting voltage, needs to remain controllable
Silicon is normally-open, needs to additionally introduce leakage current all the way, for remaining silicon-controlled normally-open；If leakage current access
Normally opened, the efficiency of system will receive influence.
Therefore, there is lead to asking for inefficiency because of the time for being unable to control leakage current for existing traditional technology
Topic.
Summary of the invention
It releases the control circuit and control method of time the purpose of the present invention is to provide a kind of fixation, it is intended to solve existing
Traditional technology there is lead to inefficiency because of the time for being unable to control leakage current.
First aspect present invention provides a kind of fixation and releases the control circuit of time, and the control circuit includes:
Gauze after bridge is connect, the detection module for obtaining trigger signal and being transmitted is configured as；
It is connect with the detection module, is configured as starting to carry out timing after receiving the trigger signal, and reaching
After preset time, the timing module of timing end signal is exported；
It connect, is configured as according to the timing end signal, the control mould of output control signal with the timing module
Block；And
Connect, be configured as according to the control signal with the control module, in the preset time to electric current into
The module of releasing that row is released.
Second aspect of the present invention provides a kind of fixation and releases the control method of time, and the control method includes:
Trigger signal is obtained using detection module and is transmitted；
Start to carry out timing after receiving the trigger signal using timing module, and after reaching preset time, output
Timing end signal；
Using control module according to the timing end signal, output control signal；
Using module of releasing according to the control signal, release in the preset time to electric current.
A kind of fixation provided by the invention is released the control circuit and control method of time, including detection module, timing mould
Block, control module and module of releasing obtain trigger signal by detection module and are transmitted；Timing module receives triggering
Start to carry out timing after signal, and after reaching preset time, exports timing end signal；Control module terminates letter according to timing
Number, output control signal；Module of releasing within a preset time releases to electric current according to control signal；And work as control circuit
When power down, detection module, timing module, control module and module of releasing carry out power-off reset automatically.It is thus achieved that all moulds
Block can carry out the logic control of a new round after power-off reset；It is released the time, is can reach in silicon-controlled opening angle by fixation
When degree is maximum, system working efficiency is higher, and during controllable silicon light modulation, when main road electric current is lower than silicon-controlled maintenance electricity
When stream, remain silicon-controlled normally-open by leakage current, so that system worked well, solves existing traditional technology and exist
The problem of leading to inefficiency because being unable to control the time of leakage current.
Detailed description of the invention
Fig. 1 be one embodiment of the invention provide a kind of fixation release the time control circuit modular structure schematic diagram.
Fig. 2 be one embodiment of the invention provide a kind of fixation release the time control circuit examples of circuits figure.
Fig. 3 be another embodiment of the present invention provides a kind of fixation release the time control method process step signal
Figure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
A kind of above-mentioned fixation is released the control circuit and control method of time, including detection module, timing module, control
Module and module of releasing obtain trigger signal by detection module and are transmitted；After timing module receives trigger signal
Start to carry out timing, and after reaching preset time, exports timing end signal；Control module is defeated according to timing end signal
Signal is controlled out；Module of releasing within a preset time releases to electric current according to control signal；And work as control circuit power down
When, detection module, timing module, control module and module of releasing carry out power-off reset automatically.It is thus achieved that all modules exist
After power-off reset, the logic control of a new round can be carried out；By fixation release the time, can reach silicon-controlled opening angle most
When big, system working efficiency is higher, and during controllable silicon light modulation, when main road electric current is lower than silicon-controlled maintenance electric current
When, remain silicon-controlled normally-open by leakage current, so that system worked well.
Fig. 1 show one embodiment of the invention offer a kind of fixation release the time control circuit modular structure, be
Convenient for explanation, only the parts related to this embodiment are shown, details are as follows:
A kind of above-mentioned fixation is released the control circuit of time, including detection module 101, timing module 102, control module
103 and module 104 of releasing.
Detection module 101 connects gauze after bridge, is configured as obtaining trigger signal and be transmitted.
Timing module 102 is connect with detection module 101, is configured as starting to carry out timing after receiving trigger signal, and
After reaching preset time, timing end signal is exported.
Control module 103 is connect with timing module 102, is configured as according to timing end signal, output control signal.
Module of releasing 104 is connect with control module 103, is configured as according to control signal, right in the preset time
Electric current is released.
As an embodiment of the present invention, above-mentioned timing module 102 is existing module, wherein preset time can be according to reality
It is set.
As an embodiment of the present invention, above-mentioned detection module 101 connects gauze after bridge, that is to say and silicon-controlled equal switch elements
It is indirectly connected with, and obtains trigger signal；Start to carry out timing after timing module 102 receives the trigger signal, be started with this
At the beginning of calculating leakage current, and after preset time, timing end signal is exported；Control module 103 receives timing
After end signal, output control signal carries out end of releasing to electric current to control module 104 of releasing；And work as control circuit power down
When, above-mentioned each functional module (including detection module 101, timing module 102, control module 103 and module 104 of releasing) is automatic
Carry out power-off reset.It releases the time, can achieve in silicon-controlled opening angle maximum, system working efficiency from there through fixation
It is higher, and during controllable silicon light modulation, when main road electric current is lower than silicon-controlled maintenance electric current, maintained by leakage current
It is silicon-controlled normally-open, so that system worked well.
Fig. 2 shows one embodiment of the invention provide a kind of fixation release the time control circuit exemplary circuit, be
Convenient for explanation, only the parts related to this embodiment are shown, details are as follows:
As an embodiment of the present invention, above-mentioned detection module 101 includes first resistor R1, second resistance R2 and the first ratio
Compared with device COMP1；
Gauze (Fig. 2 is indicated using VIN) after the first termination bridge of first resistor R1, the second end of first resistor R1 and second
The first end of resistance R2 and the normal phase input end of first comparator COMP1 connect altogether, the second end ground connection of second resistance R2, and first
The anti-phase input of comparator COMP1 terminates third reference voltage signal Vref3, and the output of first comparator COMP1 terminates timing
Module 102.
As an embodiment of the present invention, above-mentioned control module 103 is realized using latch, can be in specific input pulse
Level acts on lower change state, signal can also be kept in maintain certain level state.Certainly, latch include d type flip flop,
Any one in buffer and S/R latch.Specifically, in the present embodiment, control module 103 is using S/R latch
It is realized.
Also, main control chip realization can also be used in above-mentioned control module 103, and the input of main control chip terminates timing module
102, the output of main control chip terminates module 104 of releasing.
As an embodiment of the present invention, above-mentioned module 104 of releasing is put including switch SW1, second switch Q2, third operation
Big device COMP3 and the 4th resistance R4；
The first end of the controlled termination control module 103 of switch SW1, switch SW1 passes through the 6th resistance R6 and the 5th resistance
R5 ground connection, the second end and the inverting input terminal of third operational amplifier COMP3 and the output of second switch Q2 of switch SW1
End connects altogether, and the normal phase input end of third operational amplifier COMP3 connects the second reference voltage signal Vref2, third operational amplifier
The controlled end of the output termination second switch Q2 of COMP3, the first end of the 4th resistance R4 of input termination of second switch Q2,
The anode of the second termination first diode D1 of 4th resistance R4, the sun of the cathode of first diode D1, Light-emitting diode LED
The first end of pole, the first end of 3rd resistor R3 and first capacitor C1 connects altogether, the cathode and 3rd resistor of Light-emitting diode LED
The second end of R3 and the second end of first capacitor C1 connect altogether.
Specifically, above-mentioned switch SW1 includes field-effect tube or triode.
Specifically, above-mentioned second switch Q2 includes field-effect tube or triode；
Drain electrode, grid and the source electrode of the field-effect tube are respectively input terminal, the controlled end of the second switch Q2
And output end；
Collector, base stage and the emitter of the triode are respectively the input terminal, controlled of the second switch Q2
End and output end.
As an embodiment of the present invention, the release control circuit of time of above-mentioned fixation further includes first switch tube Q1 and second
Operational amplifier COMP2；
The inverting input terminal of the output termination second operational amplifier COMP2 of first switch tube Q1, second operational amplifier
The normal phase input end of COMP2 meets the first reference voltage signal Vref1, and the output termination first of second operational amplifier COMP2 is opened
The controlled end of pipe Q1 is closed, the input terminal of first switch tube Q1 connects the cathode of Light-emitting diode LED.
Specifically, above-mentioned first switch tube Q1 includes field-effect tube or triode；
Drain electrode, grid and the source electrode of the field-effect tube are respectively input terminal, the controlled end of the first switch tube Q1
And output end；
Collector, base stage and the emitter of the triode are respectively the input terminal, controlled of the first switch tube Q1
End and output end.
Fig. 3 show one embodiment of the invention offer a kind of fixation release the time control method step process, be
Convenient for explanation, only the parts related to this embodiment are shown, details are as follows:
It releases the control method of time the present invention also provides a kind of fixation, comprising the following steps:
S101. trigger signal is obtained using detection module and is transmitted；
S102. start to carry out timing after receiving the trigger signal using timing module, and after reaching preset time,
Export timing end signal；
S103. using control module according to the timing end signal, output control signal；
S104. it using module is released according to the control signal, releases in the preset time to electric current.
Below in conjunction with Fig. 1-Fig. 3 to a kind of above-mentioned fixation release the time control circuit and control method working principle into
Row is described as follows:
Firstly, the test point of detection module 101 may be provided at the port VIN (that is to say gauze after connecing bridge), work as detection module
After 101 output timing signals to timing module 102, timing module 102 is started to work, when timing module timing to preset time
Afterwards, shutdown signal is sent to control module 103；Wherein, control module 103 can access in access of releasing, optionally, can be with
(enabled) end EN of third operational amplifier COMP3 in module 104 of releasing is accessed, so far, logic terminates；Until power-off reset
Afterwards, system enters the logic loops of a new round.
Specifically, power supply signal is after silicon-controlled, after carrying out rectification processing to power supply signal by rectifier bridge DB1,
It is shinny by driving Light-emitting diode LED to carry out after first diode D1 again；Due to being provided with detection module 101, timing mould
Block 102, control module 103 and module 104 of releasing, so that system working efficiency is higher in silicon-controlled opening angle maximum, and
And during controllable silicon light modulation, when main road electric current is lower than silicon-controlled maintenance electric current, remain silicon-controlled by leakage current
It is normally-open, so that system worked well.
To sum up, a kind of fixation provided in an embodiment of the present invention is released the control circuit and control method of time, including detection
Module, timing module, control module and module of releasing obtain trigger signal by detection module and are transmitted；Timing mould
Block starts to carry out timing after receiving trigger signal, and after reaching preset time, exports timing end signal；Control module root
According to timing end signal, output control signal；Module of releasing within a preset time releases to electric current according to control signal；
And when control circuit power down, detection module, timing module, control module and module of releasing carry out power-off reset automatically.Thus
All modules are realized after power-off reset, the logic control of a new round can be carried out；It is released the time, be can reach by fixation
When silicon-controlled opening angle maximum, system working efficiency is higher, and during controllable silicon light modulation, when main road electric current is lower than
When silicon-controlled maintenance electric current, remain silicon-controlled normally-open by leakage current, so that system worked well, solves existing
There is lead to inefficiency because of the time for being unable to control leakage current to traditional technology.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
- The control circuit of time 1. a kind of fixation is released, which is characterized in that the control circuit includes:Gauze after bridge is connect, the detection module for obtaining trigger signal and being transmitted is configured as；It is connect with the detection module, is configured as starting to carry out timing after receiving the trigger signal, and default reaching After time, the timing module of timing end signal is exported；It connect, is configured as according to the timing end signal, the control module of output control signal with the timing module；With AndIt is connect with the control module, is configured as letting out electric current in the preset time according to the control signal The module of releasing put.
- 2. control circuit as described in claim 1, which is characterized in that the detection module includes:First resistor, second resistance and first comparator；Gauze after first termination bridge of the first resistor, the first end of the second end of the first resistor and the second resistance And the normal phase input end of the first comparator connects altogether, the second end ground connection of the second resistance, the first comparator Anti-phase input terminates third reference voltage signal, and the output of the first comparator terminates the timing module.
- 3. control circuit as described in claim 1, which is characterized in that the control module is realized using latch.
- 4. control circuit as described in claim 1, which is characterized in that the module of releasing includes:Switch, second switch, third operational amplifier and the 4th resistance；The first end of the controlled termination control module of the switch, the switch connects by the 6th resistance and the 5th resistance Ground, the second end of the switch and the inverting input terminal of the third operational amplifier and the output end of the second switch Connect altogether, the normal phase input end of the third operational amplifier connects the second reference voltage signal, the third operational amplifier it is defeated The controlled end of the second switch is terminated out, and the input of the second switch terminates the first end of the 4th resistance, institute The second end for stating the 4th resistance passes through first diode sending and receiving optical diode.
- 5. control circuit as claimed in claim 4, which is characterized in that the second switch includes field-effect tube or three poles Pipe；Drain electrode, grid and the source electrode of the field-effect tube are respectively the input terminal of the second switch, controlled end and defeated Outlet；Collector, base stage and the emitter of the triode be respectively the input terminal of the second switch, controlled end and Output end.
- 6. control circuit as claimed in claim 4, which is characterized in that the switch includes field-effect tube or triode.
- The control method of time 7. a kind of fixation is released, which is characterized in that the control method includes:Trigger signal is obtained using detection module and is transmitted；Start to carry out timing after receiving the trigger signal using timing module, and after reaching preset time, exports timing End signal；Using control module according to the timing end signal, output control signal；Using module of releasing according to the control signal, release in the preset time to electric current.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910304441.3A CN109922576A (en) | 2019-04-16 | 2019-04-16 | A kind of fixation is released the control circuit and control method of time |
| EP19861278.0A EP3749059B1 (en) | 2019-04-16 | 2019-04-28 | Control circuit and control method capable of fixing discharge duration |
| PCT/CN2019/084831 WO2020211116A1 (en) | 2019-04-16 | 2019-04-28 | Control circuit and control method capable of fixing discharge duration |
| PL19861278.0T PL3749059T3 (en) | 2019-04-16 | 2019-04-28 | Control circuit and control method capable of fixing discharge duration |
| US16/652,637 US11252801B2 (en) | 2019-04-16 | 2019-04-28 | Control circuit and control method with fixed bleed time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910304441.3A CN109922576A (en) | 2019-04-16 | 2019-04-16 | A kind of fixation is released the control circuit and control method of time |
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| CN109922576A true CN109922576A (en) | 2019-06-21 |
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| CN201910304441.3A Pending CN109922576A (en) | 2019-04-16 | 2019-04-16 | A kind of fixation is released the control circuit and control method of time |
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| CN (1) | CN109922576A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286706A (en) * | 2019-07-15 | 2019-09-27 | 杭州必易微电子有限公司 | Control circuit and control method |
| CN110582144A (en) * | 2019-10-14 | 2019-12-17 | 深圳市明微电子股份有限公司 | adaptive bleeding control circuit and method |
| CN117477917A (en) * | 2023-12-26 | 2024-01-30 | 钰泰半导体股份有限公司 | Control circuit with fixed output discharge time and multistage cascading power rail |
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| CN110286706A (en) * | 2019-07-15 | 2019-09-27 | 杭州必易微电子有限公司 | Control circuit and control method |
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