CN207318685U - High-voltage power supply state indicating device - Google Patents
High-voltage power supply state indicating device Download PDFInfo
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- CN207318685U CN207318685U CN201721378255.7U CN201721378255U CN207318685U CN 207318685 U CN207318685 U CN 207318685U CN 201721378255 U CN201721378255 U CN 201721378255U CN 207318685 U CN207318685 U CN 207318685U
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Abstract
The utility model discloses a kind of high-voltage power supply state indicating device, including high-voltage power supply working status indication unit, output amplitude indicating member；The high-voltage power supply working status indication unit includes power supply, access control, first threshold comparison circuit, logic gating circuit, power-up state LED, shutdown state LED, high-pressure work state LED, for indicating that high-voltage power supply powers on, close the door and three kinds of states of high-pressure work, the LED light that three different colours are respectively adopted represent；The output amplitude indicating member includes voltage magnitude indicating circuit, current amplitude indicating circuit, electric current back production matching status indicating circuit, for indicating high-voltage power supply output voltage amplitude, current amplitude and electric current back production matching status.The utility model can show the working status but also display output amplitude of High voltage output equipment, and state instruction can be achieved using logic circuit, without programme-control, intuitive and reliable display foundation is provided for the reliability service of High voltage output equipment.
Description
Technical field
High voltage output apparatus field is the utility model is related to, more particularly to a kind of high-voltage power supply state indicating device.
Background technology
Since high-voltage electric energy meter has remarkable thief-proof electrical property as meter, thus in recent years high-voltage electric energy meter should
With being widely popularized.High-voltage electric energy meter is before putting into operation, it is necessary in laboratory by the objective and accurate measurement verification of specialty
Device assay approval.In order to ensure the security of High-Voltage Experimentation process, when carrying out High-Voltage Experimentation in laboratory, High voltage output equipment
Intuitively working status indication should be able to be provided for operating personnel, display foundation is provided for the reliability service of High voltage output equipment, it is no
To being then smoothed out for high-potting be influenced, jeopardize the personal safety of operating personnel when serious.
Therefore it is urgent to provide a kind of new high-voltage power supply state indicating device to solve the above problems.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high-voltage power supply state indicating device, can be high-voltage power supply
A kind of reliable intuitively state indication method, real-time display high-voltage power supply current working status and output amplitude size are provided.
In order to solve the above technical problems, the technical solution that the utility model uses is：A kind of high-voltage power supply state is provided
Instruction device, including high-voltage power supply working status indication unit, output amplitude indicating member；
The high-voltage power supply working status indication unit mainly includes power supply, access control, first threshold comparison circuit, logic
Gating circuit, power-up state LED, shutdown state LED, high-pressure work state LED, power supply are gated with access control, logic respectively
Circuit is connected, and the input terminal of logic gating circuit connects access control, first threshold comparison circuit respectively, logic gating circuit
Output terminal connects power-up state LED, shutdown state LED, high-pressure work state LED respectively；
The output amplitude indicating member mainly includes voltage magnitude indicating circuit, current amplitude indicating circuit, electric current and returns
Adopt matching status indicating circuit；
The voltage sampling signal of high-voltage power supply is separately input into first threshold comparison circuit, voltage magnitude indicating circuit, electric current
Sampled signal is inputted to current amplitude indicating circuit, and electric current output back production superposed signal, which is inputted to electric current back production matching status, to be indicated
Circuit.
In one preferred embodiment of the utility model, the logic gating circuit includes Darlington circuit, 38 decoders,
Input terminal connection Darlington circuit, the output terminal of 38 decoders connect power-up state LED, shutdown state LED, high-pressure work respectively
State LED.The logic gating circuit ensures an only bright state LED light every time, for indicating high-voltage power supply as drive circuit
Power on, close the door and three kinds of states of high-pressure work.
In one preferred embodiment of the utility model, the first threshold comparison circuit is converted to voltage sampling signal
DC level signal, it includes resistance R13, R14, capacitance C9, comparator D6, positive defeated with D6 after resistance R13, R14 parallel connection
Enter end to be connected, voltage sampling signal is inputted to the power end connection of the reverse input end of D6, C9 and D6.
In one preferred embodiment of the utility model, the voltage magnitude indicating circuit mainly includes several second thresholds
Value comparison circuit, the voltage magnitude LED being connected with second threshold comparison circuit output terminal, current amplitude indicating circuit mainly include
Several the 3rd threshold value comparison circuits, the current amplitude LED being connected with the 3rd threshold value comparison circuit output end, electric current back production matching
The matching that condition indication circuit mainly includes several the 4th threshold value comparison circuits, is connected with the 4th threshold value comparison circuit output end
State LED.The number lighted according to LED light represents different voltage magnitudes, current amplitude, electric current back production matching status.
Further, second threshold comparison circuit, the 3rd threshold value comparison circuit, the circuit phase of the 4th threshold value comparison circuit
Together, including comparator, divider resistance, output resistance, the positive input of comparator is connected with divider resistance, reverse input end
It is connected with the sampled signal of high-voltage power supply, output terminal is connected with output resistance.Second threshold comparison circuit, the 3rd threshold value comparison electricity
As drive circuit, the amplitude with corresponding sampled signal gradually increases, and gradually lights correspondence for road, the 4th threshold value comparison circuit
LED light.
In one preferred embodiment of the utility model, centrum shape mounting seat, the front of the mounting seat are further included
High-voltage power supply working status indication unit, output amplitude indicating member are mounted on the back side, facilitates operating personnel from all angles
It can intuitively check high-voltage power supply current working status, play a warning role.
The beneficial effects of the utility model are：
(1) the utility model can show the working status but also display output amplitude of High voltage output equipment, using logic
State instruction can be achieved in circuit, middle using intelligent chip control output services state compared with the prior art without programme-control
And output amplitude, the relatively reliable stabilization of performance, circuit structure is simple, and cost substantially reduces；
(2) the high-voltage power supply working status indication unit, output amplitude indicating member are using LED light instruction high-voltage power supply work
Make state and output amplitude, relative to using charactron or liquid crystal display to show that effect is good, and cost is low in the prior art, safeguard and hold
Easily, the reliability service for high-potting and High voltage output equipment being carried out for operating personnel provides intuitive and reliable display foundation, no
It can only ensure the security of high-potting process, and favourable guarantee is provided for the calibrating before high-voltage electric energy meter dispensing.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of one preferred embodiment of the utility model high-voltage power supply state indicating device；
Fig. 2 is the structure diagram of the high-voltage power supply state indicating device；
Fig. 3 is the circuit diagram of the high-voltage power supply working status indication unit；
Fig. 4 is the circuit diagram of the voltage magnitude indicating circuit；
The mark of each component is as follows in attached drawing：1st, mounting seat, 2, high-voltage power supply working status indication unit, 3, output amplitude
Indicating member.
Embodiment
The preferred embodiment to the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, so as to make the scope of protection of the utility model apparent clear and definite
Define.
Please refer to Fig.1 and Fig. 2, the utility model embodiment include：
A kind of high-voltage power supply state indicating device, including it is centrum shape mounting seat 1, high-voltage power supply working status indication unit 2, defeated
Go out amplitude indicating member 3, front and the back side of the mounting seat 1 are mounted on high-voltage power supply working status indication unit 2, output
Amplitude indicating member 3, facilitates operating personnel intuitively to check high-voltage power supply current working status from all angles, plays warning
Effect.
With reference to Fig. 2, the high-voltage power supply working status indication unit 2 mainly includes power supply, access control, first threshold and compares
Circuit, logic gating circuit, power-up state LED, shutdown state LED, high-pressure work state LED, power supply respectively with access control,
Logic gating circuit is connected, and the input terminal of logic gating circuit connects access control, first threshold comparison circuit, logic choosing respectively
The output terminal of circuit passband connects power-up state LED, shutdown state LED, high-pressure work state LED respectively.The output amplitude refers to
Show that unit 3 mainly includes voltage magnitude indicating circuit, current amplitude indicating circuit, electric current back production matching status indicating circuit；It is high
The voltage sampling signal of potential source is separately input into first threshold comparison circuit, voltage magnitude indicating circuit, and current sampling signal is defeated
Enter to current amplitude indicating circuit, electric current output back production superposed signal and input to electric current back production matching status indicating circuit.
The high-voltage power supply working status indication unit 2 indicates that high-voltage power supply powers on, shutdown and three kinds of states of high-pressure work, respectively
Represented using the LED light of three different colours, specifically, green LED lamp V149 represents power-up state, yellow LED lamp V150 generations
Table higher-pressure region shutdown state, red LED lamp V148 represent High voltage output state.Drive circuit uses logic gating circuit, ensures
Each only bright state LED light, green light when powering on, amber light is bright at closing time, green light goes out, when red, amber light during High voltage output
Go out.Its particular circuit configurations referring to Fig. 3, each circuit element and connection relation as shown in the figure.
The power supply includes 24V main power sources, 5V power supplys.
Voltage sampling signal is converted to DC level signal by the first threshold comparison circuit, it include resistance R13,
R14, capacitance C9, comparator D6, are connected after resistance R13, R14 parallel connection with the positive input of D6, voltage sampling signal input to
The reverse input end of D6, C9 are the decoupling capacitor of D6, it is connected with the power end of D6.Preferably, the model of the comparator D6
For LM239.
The logic gating circuit includes 3 groups of identical Darlington circuits, 38 decoder D11, it is preferred that 38 decoding
Device D11 uses the decoder of model SN74HC138, the input terminal connection Darlington circuit of 38 decoder D11, output terminal difference
Connect power-up state LED, shutdown state LED, high-pressure work state LED.Every group of Darlington circuit is compound by two triodes
It is formed by connecting, is respectively used to the driving current of increase by three status lamps of driving.Original state, 38 decodings in logic gating circuit
Device D11 input pins C, B, A are low level.(1) when high-voltage power supply powers on, main power source 24V-1 is formed through triode V60 and V63
Darlington circuit, output high level enters D11, at this time D11 input pins CBA correspondences 001, according to 1 numerical value of truth table table,
Y1, that is, LED-G output low levels of D11, light power-up state LED light V149；In this group of Darlington circuit, including resistance
R61, R63, R70, R73, triode V60, V63, one end of R63 is connected with main power source 24V-1, the base stage phase of the other end and V60
Even, R73 is connected in parallel between the base stage of V60 and emitter, and one end of R61 is connected with 5V power supplys, the collector phase of the other end and V60
Even, the base stage of V63 is connected with the collector of V60, collector is connected with R70, emitter is connected with the emitter of V60, the collection of V63
Electrode connects the input pin A of D11；(2) when high voltage protection area, door is shut, access control X19 and X20 closure inside high-voltage power supply,
Power supply 24V-2 has electricity after access control, the Darlington circuit formed through triode V61 and V64, and output high level enters D11, this
When D11 input pins CBA correspond to 011, according to 1 numerical value of truth table table, Y3, that is, LED-Y output low levels of D11, light and power on shape
State LED light V150；In this group of Darlington circuit, including resistance R64, R66, R71, R74, triode V61, V64, the one of R66
End is connected with main power source 24V-2, the other end is connected with the base stage of V61, and R74 is connected in parallel between the base stage of V61 and emitter, R64
One end be connected with 5V power supplys, the other end is connected with the collector of V61, the base stage of V64 is connected with the collector of V61, collector
It is connected with R71, emitter is connected with the emitter of V61, the input pin B of the collector connection D11 of V64；(3) when high-voltage power supply is defeated
Go out high pressure, high-voltage signal produces small-signal VO through voltage transformer, is voltage sampling signal, and the input terminal of the signal includes two
Pole pipe V66, V67, capacitance C10, limit the amplitude of input signal between 0-5V, and voltage sampling signal is exported through comparator D6
High level, then the Darlington circuit formed through triode V62 and V65, output high level enter D11, at this time D11 input pins
CBA corresponds to 111, and according to 1 numerical value of truth table table, Y7, that is, LED-R output low levels of D11, light power-up state LED light V148.
In this group of Darlington circuit, including resistance R67, R69, R72, R75, triode V62, V65, one end of R69 and the output of D6
End is connected, the other end is connected with the base stage of V62, and R75 is connected in parallel between the base stage of V62 and emitter, one end and the 5V power supplys of R67
Connection, the other end are connected with the collector of V62, and the base stage of V65 is connected with the collector of V62, collector is connected with R72, launches
Pole is connected with the emitter of V62, the input pin C of the collector connection D11 of V65.
1 38 decoder D11 truth tables of table
The output amplitude indicating member 3 indicates high-voltage power supply output voltage amplitude, current amplitude and electric current back production matching shape
State, is respectively voltage magnitude indicating circuit, current amplitude indicating circuit, the instruction of electric current back production matching status using three groups of circuits
Circuit, 12 LED light of every group of circuit, the number that LED light is lighted represent 0% -120% state.Due to carrying out high-potting mistake
Cheng Zhong, operating personnel's distance high-voltage output equipment are indicated farther out, it is necessary to away from higher-pressure region by number that LED light is lighted
Amplitude size and matching status, can provide directly perceived, eye-catching amplitude instruction for operating personnel, and effect is preferable.
The voltage magnitude indicating circuit mainly includes 12 second threshold comparison circuits, defeated with second threshold comparison circuit
The voltage magnitude LED that outlet is connected, current amplitude indicating circuit mainly include 12 the 3rd threshold value comparison circuits and the 3rd threshold value
The current amplitude LED that comparison circuit output terminal is connected, electric current back production matching status indicating circuit mainly include 12 the 4th threshold values
Comparison circuit, the matching status LED being connected with the 4th threshold value comparison circuit output end.Second threshold comparison circuit, the 3rd threshold value
As drive circuit, the amplitude with corresponding sampled signal gradually increases, gradually lights for comparison circuit, the 4th threshold value comparison circuit
Corresponding LED light, second threshold comparison circuit, the 3rd threshold value comparison circuit, the circuit of the 4th threshold value comparison circuit are identical, include
Comparator, divider resistance, output resistance, the positive input of comparator is connected with divider resistance, reverse input end and high-voltage power supply
Sampled signal be connected, output terminal is connected with output resistance.Comparator reference input terminal (i.e. positive input) selects appropriate
Partial pressure value, ensures in corresponding proportion, the sampled signal of high-voltage power supply is more than corresponding partial pressure value, corresponding comparator exports low electricity
It is flat, light corresponding LED light.
By taking voltage magnitude indicating circuit as an example, its particular circuit configurations referring to Fig. 3, each circuit element and connection relation such as
Shown in figure.The output terminal of comparator D2B, D2A, D2C, D2D, D3B, D3A, D3C, D3D, D4B, D4A, D4C, D4D pass sequentially through
Output resistance R25-R36 is connected with light emitting diode V109-V123, and the positive input of comparator is sequentially connected in series divider resistance
R11-R23, reverse input end are all connected with the small-signal VO that high-voltage signal is produced through voltage transformer, are voltage sampling signal,
The input terminal of the signal includes diode V3, V4, capacitance C6, limits the amplitude of input signal between 0-5V.Wherein, compare
The positive input of device D2B is connected by pull-up resistor R7 with 5V power supplys, and divider resistance R11-R23 chooses appropriate resistance value, is protected
Partial pressure value of each comparator in corresponding proportion is demonstrate,proved, makes to be more than corresponding partial pressure value through the small-signal VO that voltage transformer produces,
And then low level is exported, corresponding LED light is lighted successively.Preferably, the comparator D2B, D2A, D2C, D2D, D3B, D3A,
The model LM239 of D3C, D3D, D4B, D4A, D4C, D4D.The current amplitude indicating circuit, electric current back production matching status refer to
Show the circuit theory of circuit similarly, current sampling signal is the small-signal that high-voltage signal is produced through current transformer, and electric current exports
The signal of back production superposed signal matching relationship between signal back production and signal output, the high current of high-voltage power supply output are mutual through electric current
The back production small-signal and electric current output control small-signal of sensor export the signal by an add circuit superposition.
The utility model can show the working status but also display output amplitude of High voltage output equipment, using logic circuit
State instruction can be achieved, without programme-control, for High voltage output equipment reliability service provide intuitive and reliable display according to
According to can not only ensure the security of high-potting process, and the calibrating before being launched for high-voltage electric energy meter provides favourable guarantor
Barrier.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas, are equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of high-voltage power supply state indicating device, it is characterised in that refer to including high-voltage power supply working status indication unit, output amplitude
Show unit；
The high-voltage power supply working status indication unit mainly includes power supply, access control, first threshold comparison circuit, logic gating
Circuit, power-up state LED, shutdown state LED, high-pressure work state LED, power supply respectively with access control, logic gating circuit
It is connected, the input terminal of logic gating circuit connects access control, first threshold comparison circuit, the output of logic gating circuit respectively
End connects power-up state LED, shutdown state LED, high-pressure work state LED respectively；
The output amplitude indicating member mainly includes voltage magnitude indicating circuit, current amplitude indicating circuit, electric current back production
With condition indication circuit；
The voltage sampling signal of high-voltage power supply is separately input into first threshold comparison circuit, voltage magnitude indicating circuit, current sample
Signal is inputted to current amplitude indicating circuit, and electric current output back production superposed signal, which is inputted to electric current back production matching status, indicates electricity
Road.
2. high-voltage power supply state indicating device according to claim 1, it is characterised in that the logic gating circuit includes reaching
Islington circuit, input terminal connection Darlington circuit, the output terminal of 38 decoder D11,38 decoder D11 connect power-up state respectively
LED, shutdown state LED, high-pressure work state LED.
3. high-voltage power supply state indicating device according to claim 1, it is characterised in that the first threshold comparison circuit bag
Resistance R13, R14, capacitance C9, comparator D6 are included, is connected after resistance R13, R14 parallel connection with the positive input of D6, voltage sample
Signal is inputted to the power end connection of the reverse input end of D6, C9 and D6.
4. high-voltage power supply state indicating device according to claim 1, it is characterised in that the voltage magnitude indicating circuit master
The voltage magnitude LED to include several second threshold comparison circuits, be connected with second threshold comparison circuit output terminal, electric current width
The electric current width that value indicating circuit mainly includes several the 3rd threshold value comparison circuits, is connected with the 3rd threshold value comparison circuit output end
Value LED, electric current back production matching status indicating circuit mainly include several the 4th threshold value comparison circuits and the 4th threshold value comparison electricity
The matching status LED that road output terminal is connected.
5. high-voltage power supply state indicating device according to claim 4, it is characterised in that second threshold comparison circuit, the 3rd
Threshold value comparison circuit, the circuit of the 4th threshold value comparison circuit are identical, including comparator, divider resistance, output resistance, comparator
Positive input be connected with divider resistance, reverse input end is connected with the sampled signal of high-voltage power supply, output terminal and output resistance
It is connected.
6. high-voltage power supply state indicating device according to claim 1, it is characterised in that centrum shape mounting seat is further included,
Front and the back side of the mounting seat are mounted on high-voltage power supply working status indication unit, output amplitude indicating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378255.7U CN207318685U (en) | 2017-10-24 | 2017-10-24 | High-voltage power supply state indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378255.7U CN207318685U (en) | 2017-10-24 | 2017-10-24 | High-voltage power supply state indicating device |
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| Publication Number | Publication Date |
|---|---|
| CN207318685U true CN207318685U (en) | 2018-05-04 |
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ID=62378951
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721378255.7U Expired - Fee Related CN207318685U (en) | 2017-10-24 | 2017-10-24 | High-voltage power supply state indicating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207318685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677972A (en) * | 2017-10-24 | 2018-02-09 | 烟台东方威思顿电气有限公司 | High-voltage power supply state indicating device |
| CN112730932A (en) * | 2020-12-23 | 2021-04-30 | 广州广电计量检测股份有限公司 | Comb spectrum signal generating system |
-
2017
- 2017-10-24 CN CN201721378255.7U patent/CN207318685U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677972A (en) * | 2017-10-24 | 2018-02-09 | 烟台东方威思顿电气有限公司 | High-voltage power supply state indicating device |
| CN112730932A (en) * | 2020-12-23 | 2021-04-30 | 广州广电计量检测股份有限公司 | Comb spectrum signal generating system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20211024 |
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| CF01 | Termination of patent right due to non-payment of annual fee |