CN107957513B - Induction type voltage indicator - Google Patents
Induction type voltage indicator Download PDFInfo
- Publication number
- CN107957513B CN107957513B CN201610900890.0A CN201610900890A CN107957513B CN 107957513 B CN107957513 B CN 107957513B CN 201610900890 A CN201610900890 A CN 201610900890A CN 107957513 B CN107957513 B CN 107957513B
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- Prior art keywords
- diode
- resistor
- energy storage
- storage capacitor
- triode
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- 230000006698 induction Effects 0.000 title claims abstract description 10
- 238000004146 energy storage Methods 0.000 claims abstract description 40
- 239000003990 capacitor Substances 0.000 claims abstract description 39
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 17
- 239000010703 silicon Substances 0.000 claims abstract description 17
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/155—Indicating the presence of voltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an induction type voltage indicator, which comprises a rectifying circuit and a return circuit, wherein the rectifying circuit consists of a first diode, a second diode, a third diode and a fourth diode, the return circuit consists of a PNP triode, an NPN triode, a resistor R2, a resistor R3 and a resistor R4, the anodes of the alternating current input ends of the first diode and the second diode in the rectifying circuit are connected with a current limiting resistor R1, the current limiting resistor R1 is connected with the voltage signal input end L of a voltage sensor, and the cathodes of the alternating current output ends of the third diode and the fourth diode are directly grounded. When the direct-current voltage reaches the silicon controlled rectifier conduction node, the induction type voltage indicator realizes the enhancement of the brightness of the LED by the energy stored by the first energy storage capacitor and the inductor; the working principle of high-brightness light emission of the light-emitting diode with low current input is realized.
Description
Technical Field
The invention relates to the technical field of indoor switch complete equipment, in particular to an induction type voltage indicator used on a high-voltage electrified display device.
Background
The high-voltage live display device is a prompt safety device which is directly arranged on electrical equipment and visually displays whether the electrical equipment has operating voltage. When the equipment has running voltage, the display window of the high-voltage live display device emits flash light to warn people that the high-voltage equipment is electrified, and no indication is given when the high-voltage equipment is not electrified. The high-voltage electrified display device is often applied to an induction type voltage indicator, and the current existing induction type voltage indicator is limited in further popularization and application because the output current of a voltage sensor is small and the normal working current is 20-40uA, so that the voltage indicator emits light very little.
Disclosure of Invention
The invention aims to provide an induction type voltage indicator, which realizes the working principle of low current input in a circuit and high brightness light emission of a light emitting diode so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the inductive voltage indicator comprises a rectifying circuit and a return difference circuit, wherein the rectifying circuit consists of a first diode, a second diode, a third diode and a fourth diode, the return difference circuit consists of a PNP triode, an NPN triode, a resistor R2, a resistor R3 and a resistor R4, the anodes of the first diode and the second diode in the rectifying circuit are connected with a current limiting resistor R1, the current limiting resistor R1 is connected with a voltage signal input L end of a voltage sensor, and the cathodes of the third diode and the fourth diode are directly grounded; the anodes of the direct current output ends of the first diode and the fourth diode are connected with the first energy storage capacitor and the second energy storage capacitor and grounded, and the cathodes of the direct current output ends of the second diode and the third diode are directly grounded; the connecting ends of the first energy storage capacitor and the second energy storage capacitor are connected in parallel with a resistor R3, a resistor R4, a resistor R5, a resistor R6 and a resistor R7, the first energy storage capacitor is connected in parallel with a resistor R2, and the second energy storage capacitor is connected in parallel with a sixth diode; the collector of the PNP triode is connected to the connecting ends of the first energy storage capacitor and the second energy storage capacitor, the base of the PNP triode is connected with the emitter of the NPN triode, the base of the NPN triode is connected to the emitter of the PNP triode, the collector of the NPN triode is connected to the connecting port of the resistor R5 and the resistor R6, the connecting port of the resistor R6 and the resistor R7 is connected to the control electrode of the unidirectional silicon controlled rectifier, and the cathode of the unidirectional silicon controlled rectifier is connected to one end of the resistor R7 and grounded; the anode of the unidirectional silicon controlled rectifier is connected with a fifth diode in series and connected to the first energy storage capacitor, an inductor and a light-emitting diode are also connected in parallel on the fifth diode, and the inductor and the light-emitting diode are connected in series.
Preferably, the base electrode of the PNP triode and the emitter electrode of the NPN triode are both connected to the interface of the resistor R3 and the resistor R4 connected in series.
Preferably, the emitter of the PNP triode and the base of the NPN triode are both connected to the interface of the resistor R4 and the resistor R5 connected in series.
Preferably, the light emitting diode is an LED diode.
Compared with the prior art, the invention has the beneficial effects that: the induction type voltage indicator is characterized in that a voltage signal input end L of a voltage sensor is grounded, alternating voltage is rectified and converted into direct voltage through a current limiting resistor R1 and diodes D1-D4, the direct voltage is stored in a first energy storage capacitor and a second energy storage capacitor, and a return difference circuit is formed by a PNP triode, an NPN triode, a resistor R2, a resistor R3 and a resistor R4 to control the on and off of a silicon controlled rectifier; when the direct-current voltage reaches the silicon controlled rectifier conduction node, the first energy storage capacitor and the inductance energy storage energy are used for realizing the enhancement of the brightness of the LED; the working principle of high-brightness light emission of the light-emitting diode with low current input is realized.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
In the figure: the LED driving circuit comprises a 1-rectifying circuit, a 2-return difference circuit, a D1-first diode, a D2-second diode, a D3-third diode, a D4-fourth diode, a D5-fifth diode, a D6-sixth diode, a T1-unidirectional silicon controlled rectifier, a T2-PNP triode, a T3-NPN triode, a C1-first energy storage capacitor, a C2-second energy storage capacitor and an a-LED.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: the inductive voltage indicator comprises a rectifying circuit 1 and a return difference circuit 2, wherein the rectifying circuit 1 consists of a first diode D1, a second diode D2, a third diode D3 and a fourth diode D4, the return difference circuit 2 consists of a PNP triode T2, an NPN triode T3, a resistor R2, a resistor R3 and a resistor R4, the positive electrodes of alternating current input ends of the first diode D1 and the second diode D2 in the rectifying circuit 1 are connected with a current limiting resistor R1, the current limiting resistor R1 is connected to a voltage signal input end L of a voltage sensor, and the negative electrodes of alternating current output ends of the third diode D3 and the fourth diode D4 are directly grounded; the anodes of the direct current output ends of the first diode D1 and the fourth diode D4 are connected with the first energy storage capacitor C1 and the second energy storage capacitor C2 and grounded, and direct current voltages are stored in the first energy storage capacitor C1 and the second energy storage capacitor C2; the cathodes of the direct current output ends of the second diode D2 and the third diode D3 are directly grounded; the connecting ends of the first energy storage capacitor C1 and the second energy storage capacitor C2 are connected in parallel with a resistor R3, a resistor R4, a resistor R5, a resistor R6 and a resistor R7, the resistor R2 is connected in parallel with the first energy storage capacitor C1, and the sixth diode D6 is connected in parallel with the second energy storage capacitor C2; the collector of the PNP triode T2 is connected to the connecting ends of the first energy storage capacitor C1 and the second energy storage capacitor C2, the base of the PNP triode T2 is connected with the emitter of the NPN triode T3, the base of the NPN triode T3 is connected to the emitter of the PNP triode T2, the collector of the NPN triode T3 is connected to the connecting port of the resistor R5 and the resistor R6, the connecting port of the resistor R6 and the resistor R7 is connected to the control electrode of the unidirectional silicon controlled rectifier T1, and the cathode of the unidirectional silicon controlled rectifier T1 is connected to one end of the resistor R7 and grounded; the anode of the unidirectional silicon controlled rectifier T1 is connected in series with a fifth diode D5 and connected to the first energy storage capacitor C1 in parallel, an inductor La and a light emitting diode a are also connected in parallel on the fifth diode D5, the light emitting diode a is an LED diode, and the inductor La and the light emitting diode a are connected in series.
The base electrode of the PNP triode T2 and the emitter electrode of the NPN triode T3 are connected to the interface of the resistor R3 and the resistor R4 which are connected in series; the emitter of the PNP triode T2 and the base of the NPN triode T3 are both connected to the interface of the resistor R4 and the resistor R5 which are connected in series; PNP triode T2, NPN triode T3, resistance R2, resistance R3 and resistance R4 form a return difference circuit to control the on and off of the controllable silicon T1; when the direct-current voltage reaches the conduction node of the silicon controlled rectifier T1, the first energy storage capacitor C1 and the inductor La are used for storing energy to realize the enhancement of the brightness of the LED a; the working principle of high-brightness light emission of the light-emitting diode with low current input is realized.
The working process of the invention comprises the following steps: the voltage signal input end L of the voltage sensor is grounded, alternating current voltage is rectified and converted into direct current voltage through a current limiting resistor R1 and diodes D1-D4, the direct current voltage is stored in a first energy storage capacitor C1 and a second energy storage capacitor C2, and a return difference circuit is formed by a PNP triode T2, an NPN triode T3, a resistor R2, a resistor R3 and a resistor R4 to control the on and off of the silicon controlled rectifier T1; when the direct-current voltage reaches the conduction node of the silicon controlled rectifier T1, the first energy storage capacitor C1 and the inductor La are used for storing energy to realize the enhancement of the brightness of the LED a; the effect of low current input and high brightness luminescence is realized.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (2)
1. The utility model provides an induction type voltage indicator, includes rectifier circuit (1) and return difference circuit (2), its characterized in that: the rectifying circuit (1) consists of a first diode (D1), a second diode (D2), a third diode (D3) and a fourth diode (D4), the return difference circuit (2) consists of a PNP triode (T2), an NPN triode (T3), a resistor R2, a resistor R3 and a resistor R4, the positive electrode of the alternating current input end of the first diode (D1) and the alternating current input end of the second diode (D2) in the rectifying circuit (1) is connected with a current limiting resistor R1, the current limiting resistor R1 is connected with the voltage signal input end L of the voltage sensor, and the negative electrode of the alternating current output end of the third diode (D3) and the negative electrode of the alternating current output end of the fourth diode (D4) are directly grounded; the anodes of the direct current output ends of the first diode (D1) and the fourth diode (D4) are connected with the first energy storage capacitor (C1) and the second energy storage capacitor (C2) and grounded, and the cathodes of the direct current output ends of the second diode (D2) and the third diode (D3) are directly grounded; the connecting ends of the first energy storage capacitor (C1) and the second energy storage capacitor (C2) are sequentially connected with a resistor R3, a resistor R4, a resistor R5, a resistor R6 and a resistor R7, the resistor R2 is connected in parallel with the first energy storage capacitor (C1), and the sixth diode (D6) is connected in parallel with the second energy storage capacitor (C2); the collector of the PNP triode (T2) is connected to the connecting end of the first energy storage capacitor (C1) and the second energy storage capacitor (C2), the base of the PNP triode (T2) is connected with the emitter of the NPN triode (T3), the base of the NPN triode (T3) is connected to the emitter of the PNP triode (T2), the collector of the NPN triode (T3) is connected to the connecting port of the resistor R5 and the resistor R6, the connecting port of the resistor R6 and the resistor R7 is connected to the control electrode of the unidirectional silicon controlled rectifier (T1), and the cathode of the unidirectional silicon controlled rectifier (T1) is connected to one end of the resistor R7 and grounded; the anode of the unidirectional silicon controlled rectifier (T1) is connected in series with a fifth diode (D5) and connected to the first energy storage capacitor (C1), an inductor (La) and a light-emitting diode (a) are also connected in parallel with the fifth diode (D5), and the inductor (La) and the light-emitting diode (a) are connected in series; the base electrode of the PNP triode (T2) and the emitter electrode of the NPN triode (T3) are connected to an interface of the resistor R3 and the resistor R4 which are connected in series; and the emitter of the PNP triode (T2) and the base of the NPN triode (T3) are connected to the interface of the resistor R4 and the resistor R5 which are connected in series.
2. An inductive voltage indicator according to claim 1, characterized in that: the light emitting diode (a) is an LED diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900890.0A CN107957513B (en) | 2016-10-17 | 2016-10-17 | Induction type voltage indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900890.0A CN107957513B (en) | 2016-10-17 | 2016-10-17 | Induction type voltage indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107957513A CN107957513A (en) | 2018-04-24 |
| CN107957513B true CN107957513B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610900890.0A Active CN107957513B (en) | 2016-10-17 | 2016-10-17 | Induction type voltage indicator |
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| Country | Link |
|---|---|
| CN (1) | CN107957513B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100824855B1 (en) * | 2006-12-27 | 2008-04-23 | 삼성에스디아이 주식회사 | Ambient light sensing circuit and flat panel device having it |
| CN101437342A (en) * | 2008-12-24 | 2009-05-20 | 米万里 | Low energy consumption monopole electronic switching circuit and micro energy consumption brightening circuit of indicating lamp |
| CN102739226A (en) * | 2012-07-02 | 2012-10-17 | 无锡四方电炉有限公司 | Light-operated switch |
| CN103687242A (en) * | 2013-12-17 | 2014-03-26 | 魏其萃 | Method for detecting output conduction angle theta of silicon controlled light modulator |
| WO2015184832A1 (en) * | 2014-10-09 | 2015-12-10 | 中兴通讯股份有限公司 | Alternating current detection circuit |
-
2016
- 2016-10-17 CN CN201610900890.0A patent/CN107957513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100824855B1 (en) * | 2006-12-27 | 2008-04-23 | 삼성에스디아이 주식회사 | Ambient light sensing circuit and flat panel device having it |
| CN101437342A (en) * | 2008-12-24 | 2009-05-20 | 米万里 | Low energy consumption monopole electronic switching circuit and micro energy consumption brightening circuit of indicating lamp |
| CN102739226A (en) * | 2012-07-02 | 2012-10-17 | 无锡四方电炉有限公司 | Light-operated switch |
| CN103687242A (en) * | 2013-12-17 | 2014-03-26 | 魏其萃 | Method for detecting output conduction angle theta of silicon controlled light modulator |
| WO2015184832A1 (en) * | 2014-10-09 | 2015-12-10 | 中兴通讯股份有限公司 | Alternating current detection circuit |
Non-Patent Citations (1)
| Title |
|---|
| 声光控节能灯的制作;芦涛;;电子制作(10);63 * |
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| Publication number | Publication date |
|---|---|
| CN107957513A (en) | 2018-04-24 |
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