CN103297017B - A kind of easy light-operated delay control circuit of direct current - Google Patents
A kind of easy light-operated delay control circuit of direct current Download PDFInfo
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- CN103297017B CN103297017B CN201310222098.0A CN201310222098A CN103297017B CN 103297017 B CN103297017 B CN 103297017B CN 201310222098 A CN201310222098 A CN 201310222098A CN 103297017 B CN103297017 B CN 103297017B
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- branch road
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Abstract
The invention discloses a kind of easy light-operated delay control circuit of direct current, comprise light-operated branch road; Time delay branch road; Control load branch; Described light-operated branch road comprises diode D1, regulating resistance R1, light-sensitive element RG, described time delay branch road comprises diode D2, charging resistor R2, charging capacitor C1, discharge resistance R3, and described Control load branch comprises transistor Q, relay K, diode D3, thermistor R4 and load.The present invention is by regulating resistance R1 dividing potential drop, the delay time of regulating circuit is carried out by allotment charging resistor R2, the resistance of discharge resistance R3 and the capacitance of charging capacitor C1, utilize light-sensitive element to the characteristic of light, make relay coil adhesive and not adhesive, by disconnection and the Closed control load of the contact of relay, this circuit structure is simple, be easy to realize.
Description
Technical field
The present invention relates to the simple circuit of the light-operated delays time to control of a kind of direct current.
Background technology
At present, utilize the design of light-operated circuit to have multiple, seldom have for light-operated delay control circuit, some can control but circuit structure is complicated, element is more.
Therefore, need a kind of new technical scheme to solve the problem.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the simple circuit of the light-operated delays time to control of a kind of direct current, this circuit structure is simple, be easy to realize, controlled the time of time delay by adjusting resistance value, capacitance.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A simple circuit for the light-operated delays time to control of direct current, comprises light-operated branch road, time delay branch road, Control load branch; Described light-operated route diode D1, regulating resistance R1, light-sensitive element RG form, route diode D2, charging resistor R2 are propped up in described time delay, charging capacitor C1, discharge resistance R3 form, and described Control load branch is made up of transistor Q, relay K, diode D3, thermistor R4, load.
Relative to prior art, the light-operated delay control circuit structure of the easy direct current of the present invention is simple, be easy to realize.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 the simple circuit of the light-operated delays time to control of a kind of direct current.Comprise light-operated branch road, time delay branch road, Control load branch.Described light-operated route diode D1, regulating resistance R1, light-sensitive element RG form; D1 rectification, regulates the resistance of R1 to regulate the voltage at R3 two ends.Route diode D2, charging resistor R2 are propped up in described time delay, charging capacitor C1, discharge resistance R3 form; Integrating circuit is formed by charging resistor R2 and electric capacity C1; By the allotment resistance of charging resistor R2 and the capacitance of electric capacity C1, thus regulate the charging interval; Charging interval is delay time.Described instantaneous discharge props up route diode D2, and discharge resistance R3 forms; By the resistance of allotment discharge resistance R3, thus regulate discharge time.Described Control load branch is made up of transistor Q, relay K, diode D3, thermistor R4, load; When there being illumination, light-sensitive element RG resistance is very little, has larger current to pass through, transistor Q conducting, and relay K obtains electric adhesive, and its normally-closed contact disconnects, and load quits work.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. the light-operated delay control circuit of easy direct current, is characterized in that: comprise light-operated branch road, time delay branch road, Control load branch; Described light-operated route diode D1, regulating resistance R1, light-sensitive element RG form, route diode D2, charging resistor R2 are propped up in described time delay, charging capacitor C1, discharge resistance R3 form, and described Control load branch is made up of transistor Q, relay K, diode D3, thermistor R4, load;
Wherein, in time delay branch road, charging resistor R2 and electric capacity C1 forms integrating circuit, and the both sides of electric capacity C1 are connected with the instantaneous discharge branch road be made up of diode D2 and discharge resistance R3 simultaneously; Regulating resistance R1, light-sensitive element RG connect with integrating circuit;
In Control load branch, series thermal-sensitive resistance R4 and transistor Q after load is in parallel with diode D3, load is connected with relay K; The output of above-mentioned integrating circuit is connected with transistor Q, and during transistor Q conducting, relay K obtains electric adhesive, and its normally-closed contact disconnects, and load quits work.
2. the easy light-operated delay control circuit of direct current as claimed in claim 1, is characterized in that: described time delay branch road is to control light-operated delay time.
3. the easy light-operated delay control circuit of direct current as claimed in claim 1, is characterized in that: the relay of setting is used for the break-make of control load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222098.0A CN103297017B (en) | 2013-06-05 | 2013-06-05 | A kind of easy light-operated delay control circuit of direct current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222098.0A CN103297017B (en) | 2013-06-05 | 2013-06-05 | A kind of easy light-operated delay control circuit of direct current |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103297017A CN103297017A (en) | 2013-09-11 |
| CN103297017B true CN103297017B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310222098.0A Active CN103297017B (en) | 2013-06-05 | 2013-06-05 | A kind of easy light-operated delay control circuit of direct current |
Country Status (1)
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| CN (1) | CN103297017B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322930A (en) * | 2015-12-02 | 2016-02-10 | 上海航空电器有限公司 | Short-time power down retaining circuit for direct-current solid-state power controller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065805A (en) * | 1975-04-16 | 1977-12-27 | Sprecher & Schuh Ag | Circuit arrangement in an electrical device operated with direct-current, especially in a timing relay |
| CN2096166U (en) * | 1991-03-23 | 1992-02-12 | 王新生 | Sound and optic controlled automatic switch |
| CN2183648Y (en) * | 1993-11-22 | 1994-11-23 | 张绍仁 | Acoustic-optical delay switch with adjustable sensitivity |
| CN203352553U (en) * | 2013-06-05 | 2013-12-18 | 江苏德厚机电有限公司 | Simple DC light-operated time-delay control circuit |
-
2013
- 2013-06-05 CN CN201310222098.0A patent/CN103297017B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065805A (en) * | 1975-04-16 | 1977-12-27 | Sprecher & Schuh Ag | Circuit arrangement in an electrical device operated with direct-current, especially in a timing relay |
| CN2096166U (en) * | 1991-03-23 | 1992-02-12 | 王新生 | Sound and optic controlled automatic switch |
| CN2183648Y (en) * | 1993-11-22 | 1994-11-23 | 张绍仁 | Acoustic-optical delay switch with adjustable sensitivity |
| CN203352553U (en) * | 2013-06-05 | 2013-12-18 | 江苏德厚机电有限公司 | Simple DC light-operated time-delay control circuit |
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|---|---|
| CN103297017A (en) | 2013-09-11 |
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