CN206627607U - Power sense circuit and its detecting system - Google Patents
Power sense circuit and its detecting system Download PDFInfo
- Publication number
- CN206627607U CN206627607U CN201720264129.2U CN201720264129U CN206627607U CN 206627607 U CN206627607 U CN 206627607U CN 201720264129 U CN201720264129 U CN 201720264129U CN 206627607 U CN206627607 U CN 206627607U
- Authority
- CN
- China
- Prior art keywords
- submodule
- isolation
- conduction detection
- resistance
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a kind of power sense circuit and its detecting system, the circuit includes voltage turn-on detection module, and voltage turn-on detection module includes first voltage conduction detection submodule, second voltage conduction detection submodule and tertiary voltage conduction detection submodule；The positive pole of first voltage conduction detection submodule is connected with inputting testing terminal L, and the negative pole of first voltage conduction detection submodule is connected with inputting testing terminal N；The positive pole of second voltage conduction detection submodule is connected with inputting testing terminal N, and the negative pole of second voltage conduction detection submodule is connected with inputting testing terminal G；The positive pole of tertiary voltage conduction detection submodule is connected with inputting testing terminal G, and the negative pole of tertiary voltage conduction detection submodule is connected with inputting testing terminal L.The ground wire that the utility model can detect single phase alternating current power supply electricity consumption is unreliable connection or the unreliable connection or connectionless of connectionless or three-phase alternating current electrical neutral axis and ground wire；Strengthen Electrical Safety.
Description
Technical field
A kind of electrical equipment technical field is the utility model is related to, more particularly to a kind of power sense circuit and its detection
System.
Background technology
AC power has incorporated huge numbers of families, and now domestic civilian AC power is 50HZ/220V AC powers, work
Industry user uses 50HZ/380V power supplys, or the power supply of other voltage class and frequency mostly.
Provided according to Electrical Safety, the shell or region of interest of various equipment need reliable ground, otherwise may draw
Play the accidents such as electric shock.Single-phase alternating-current power includes live wire (L), zero line (N) and ground wire (G), and three-phase alternating-current supply includes A phases (A),
B phases (B), C phases (C), the neutral conductor (N) and ground (G).
But much exchange electricity consumption is lack of standardization, be embodied in mostly the ground wire of single phase alternating current power supply electricity consumption for unreliable connection or
It is connectionless；Or three-phase alternating current electrical neutral axis and the unreliable connection or connectionless of ground wire.For Electrical Safety, how to judge to hand over
Flow power supply whether safety, be existing current urgent problem to be solved.
Utility model content
The utility model is intended at least solve technical problem present in prior art, especially innovatively proposes a kind of electricity
Power sense circuit and its detecting system.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of power sense circuit, the circuit
Including voltage turn-on detection module, the voltage turn-on detection module includes first voltage conduction detection submodule, second voltage
Conduction detection submodule and tertiary voltage conduction detection submodule；The positive pole of first voltage conduction detection submodule detects with input
Port L is connected, and the negative pole of first voltage conduction detection submodule is connected with inputting testing terminal N；Second voltage conduction detection
The positive pole of module is connected with inputting testing terminal N, negative pole and the inputting testing terminal G phases of second voltage conduction detection submodule
Even；The positive pole of tertiary voltage conduction detection submodule is connected with inputting testing terminal G, and tertiary voltage conduction detection submodule is born
Pole is connected with inputting testing terminal L.
By the correctly corresponding connection of the detection port of the circuit and circuit port to be detected, then first voltage conduction detection submodule
Block and the conducting of tertiary voltage conduction detection submodule, the cut-off of second voltage conduction detection submodule.Fast and easily judge to be intended to
Detect circuit port produced problem.
In a kind of preferred embodiment of the present utility model, first voltage conduction detection submodule, second voltage conducting
Detection sub-module and tertiary voltage conduction detection submodule are current lead-through instruction device or current lead-through instruction device and two
Pole pipe is connected.
By the correctly corresponding connection of the detection port of the circuit and circuit port to be detected, then the first current lead-through instruction device
Bright with the 3rd current lead-through instruction device, the 3rd current lead-through instruction device does not work.And it is whole to serve half-wave using diode
The effect of stream, only the positive half-wave of alternating current is allowed to pass through loop.
In a kind of preferred embodiment of the present utility model, in addition to isolation module, the isolation module include first
Isolate submodule, the second isolation submodule and the 3rd isolation submodule；The input circuit and first voltage of first isolation submodule
Conduction detection submodule is connected, and the output end of the first isolation submodule is connected with output detection port LN；Second isolation submodule
Input circuit connected with second voltage conduction detection submodule, second isolation submodule output end with output detection port NG
It is connected；The input circuit of 3rd isolation submodule is connected with tertiary voltage conduction detection submodule, and the 3rd isolates the defeated of submodule
Go out end with output detection port LG to be connected.Using submodule isolation high pressure is isolated, more securely and reliably.
In a kind of preferred embodiment of the present utility model, the first isolation submodule, the second isolation submodule and the 3rd
It is photoisolator to isolate submodule.It is easy to obtain, it is cheap.
In a kind of preferred embodiment of the present utility model, in addition to filtration module, the filtration module include first
Filter submodule, the second filtering submodule and the 3rd filtering submodule；First filtering submodule isolates the defeated of submodule with first
Go out end series connection, the output end that the second filtering submodule isolates submodule with second is connected, and the 3rd filtering submodule is isolated with the 3rd
The output end series connection of submodule；First filtering submodule includes electric capacity C8 and resistance R11, electric capacity C8 first end and resistance R11
First end be connected, electric capacity C8 the second end and resistance R11 the second end are connected to the ground respectively；Second filtering submodule includes electricity
Hold C9 and resistance R17, electric capacity C9 first end is connected with resistance R17 first end, and the of electric capacity C9 the second end and resistance R17
Two ends are connected to the ground respectively；3rd filtering submodule includes electric capacity C10 and resistance R21, electric capacity C10 first end and resistance R21
First end be connected, electric capacity C10 the second end and resistance R21 the second end are connected to the ground respectively.The filter circuit being made up of RC,
The clutter of input is filtered out, signal is more stable.
In a kind of preferred embodiment of the present utility model, in addition to voltage follower, voltage follower include first
The sub- follower of voltage, the sub- follower of second voltage and the sub- follower of tertiary voltage；The sub- follower of first voltage and the first separaant
The output end series connection of module, the output end that the sub- follower of second voltage isolates submodule with second are connected, and tertiary voltage follows
The output end that device isolates submodule with the 3rd is connected.Using voltage follower so that output is equal to input, signal interference is prevented.
In a kind of preferred embodiment of the present utility model, in addition to resistance R12, resistance R15 and resistance R22；Resistance
R12 connects with first voltage conduction detection submodule, and resistance R15 connects with second voltage conduction detection submodule, resistance R22 with
Tertiary voltage conduction detection submodule is connected.Resistance R12, resistance R15 and resistance R22 each serve the effect of current limliting, prevent
Loop current is excessive, burns light emitting diode.
In a kind of preferred embodiment of the present utility model, in addition to safe digital display module, the safe digital display module
Including isolation module, 3-8 decoders and seven segment digital tubes, the isolation module includes the first isolation submodule, the second separaant
Module and the 3rd isolation submodule；The input circuit of first isolation submodule is connected with first voltage conduction detection submodule, the
The output end of one isolation submodule is connected with the first input end of 3-8 decoders with output detection port LN；Second isolation submodule
The input circuit of block is connected with second voltage conduction detection submodule, the output end and 3-8 decoders of the second isolation submodule
Second input is connected with output detection port NG；The input circuit and tertiary voltage conduction detection submodule of 3rd isolation submodule
Block is connected, and the output end of the 3rd isolation submodule is connected with the output end of 3-8 decoders with seven segment digital tubes.Decoded by 3-8
Bright light mode is converted to intuitively numerical monitor by device and seven segment digital tubes.
In a kind of preferred embodiment of the present utility model, in addition to safe digital display module, the safe digital display module
Including isolator, processor and display, the isolation module includes the first isolation submodule, the second isolation submodule and the 3rd
Isolate submodule；The input circuit of first isolation submodule is connected with first voltage conduction detection submodule, the first isolation submodule
The output end of block is connected with the first input end of processor；The input circuit and second voltage conduction detection of second isolation submodule
Submodule is connected, and the output end of the second isolation submodule is connected with the second input of processor；3rd isolates the defeated of submodule
Entry loop is connected with tertiary voltage conduction detection submodule, the output end of the 3rd isolation submodule and the 3rd input of processor
It is connected；The output end of processor is connected with display.Bright light mode is converted to by intuitively level by processor and display
Display.
The utility model additionally provides a kind of detecting system of power sense circuit, and the input in power sense circuit is examined
Survey port L, inputting testing terminal N and inputting testing terminal G and single-phase alternating current or the test side of any phase of three-phase alternating current
Mouth is connected.Whether detection single-phase alternating current or three-phase alternating current are unreliable connection or connectionless, and relatively reliable guarantee is given birth to
Life safety.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：The utility model can
The ground wire of single phase alternating current power supply electricity consumption is detected as unreliable connection or connectionless or three-phase alternating current electrical neutral axis and ground wire not
It is reliably connected or connectionless；Strengthen Electrical Safety.
Brief description of the drawings
Fig. 1 is the utility model circuit connection diagram.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
In description of the present utility model, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are based on attached
Orientation or position relationship shown in figure, it is for only for ease of and describes the utility model and simplify to describe, rather than instruction or hint
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of utility model.
In description of the present utility model, unless otherwise prescribed with restriction, it is necessary to explanation, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be mechanical connection or the company of electrical connection or two element internals
It is logical, can be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
The utility model provides a kind of power sense circuit, and the circuit includes voltage turn-on detection module, voltage turn-on
Detection module includes first voltage conduction detection submodule, second voltage conduction detection submodule and tertiary voltage conduction detection
Module；The positive pole of first voltage conduction detection submodule is connected with inputting testing terminal L, first voltage conduction detection submodule
Negative pole is connected with inputting testing terminal N；The positive pole of second voltage conduction detection submodule is connected with inputting testing terminal N, and second
The negative pole of voltage turn-on detection sub-module is connected with inputting testing terminal G；The positive pole of tertiary voltage conduction detection submodule with it is defeated
Enter to detect port G to be connected, the negative pole of tertiary voltage conduction detection submodule is connected with inputting testing terminal L.
In a kind of preferred embodiment of the present utility model, first voltage conduction detection submodule, second voltage conducting
Detection sub-module and tertiary voltage conduction detection submodule are current lead-through instruction device or current lead-through instruction device and two
Pole pipe is connected.In the present embodiment, current lead-through instruction device is not limited to light emitting diode, can also be bulb；When
When current lead-through instruction device is light emitting diode, light emitting diode is with the annexation connected of diode：Light-emitting diodes
The negative pole of pipe is connected with the positive pole of diode.
In a kind of preferred embodiment of the present utility model, in addition to isolation module, isolation module include the first isolation
Submodule, the second isolation submodule and the 3rd isolation submodule；The input circuit of first isolation submodule turns on first voltage
Detection sub-module is connected, and the output end of the first isolation submodule is connected with output detection port LN；Second isolates the defeated of submodule
Entry loop is connected with second voltage conduction detection submodule, and the output end of the second isolation submodule detects port NG phases with output
Even；The input circuit of 3rd isolation submodule is connected with tertiary voltage conduction detection submodule, the output of the 3rd isolation submodule
End is connected with output detection port LG.In the present embodiment, the first isolation submodule, the second isolation submodule and the 3rd isolation
Submodule is not limited to photoisolator or relay.The connection of its isolation module and voltage turn-on detection module is closed
It is to be：When isolation module is photoisolator and when voltage turn-on detection module is light emitting diode, first luminous two
The positive pole of pole pipe is connected with detection port L, in the input circuit of the negative pole of the first light emitting diode and the first photoisolator
The positive pole of light emitting diode is connected, negative pole and the input test side of the light emitting diode in the input circuit of the first photoisolator
Mouth N is connected, and the colelctor electrode of the triode in the output loop of the first photoisolator is connected with resistance R8 first end, resistance R8
The second end be connected with the first power supply, the emitter stage of the triode in the output loop of the first photoisolator and output test side
Mouth LN is connected；The positive pole of second light emitting diode is connected with detection port N, the negative pole of the second light emitting diode and the second photoelectricity every
Positive pole from the light emitting diode in the input circuit of device is connected, the light emitting diode in the input circuit of the second photoisolator
Negative pole be connected with inputting testing terminal G, the colelctor electrode of the triode in the output loop of the second photoisolator and resistance R13
First end be connected, resistance R13 the second end is connected with the first power supply, the triode in the output loop of the second photoisolator
Emitter stage with output detection port NG be connected；The positive pole of 3rd light emitting diode is connected with detection port G, the 3rd light-emitting diodes
The negative pole of pipe is connected with the positive pole of the light emitting diode in the input circuit of the 3rd photoisolator, the 3rd photoisolator it is defeated
The negative pole of light emitting diode in entry loop is connected with inputting testing terminal L, and three in the output loop of the 3rd photoisolator
The colelctor electrode of pole pipe is connected with resistance R19 first end, and resistance R19 the second end is connected with the first power supply, the 3rd Phototube Coupling
The emitter stage of triode in the output loop of device is connected with output detection port LG.Similarly, when isolation module is relay
And voltage turn-on detection module, when being light emitting diode, the positive pole of the first light emitting diode is connected with detection port L, and first is luminous
The negative pole of diode is connected with the first end of the input circuit of the first relay, the second end of the input circuit of the first relay with
Inputting testing terminal N is connected, and the first end in the output loop of the first relay is connected with resistance R8 first end, resistance R8's
Second end is connected with the first power supply, and the second end of the output loop of the first relay is connected with output detection port LN；Second hair
The positive pole of optical diode is connected with detection port N, and the of the input circuit of the negative pole of the second light emitting diode and the second relay
One end is connected, and the second end of the input circuit of the second relay is connected with inputting testing terminal G, the output loop of the second relay
First end be connected with resistance R13 first end, resistance R13 the second end is connected with the first power supply, the output of the second relay
The first end in loop is connected with output detection port NG；The positive pole of 3rd light emitting diode is connected with detection port G, and the 3rd is luminous
The negative pole of diode is connected with the first end of the input circuit of the 3rd relay, the second end of the input circuit of the 3rd relay with
Inputting testing terminal L is connected, and the first end of the output loop of the 3rd relay is connected with resistance R19 first end, resistance R19's
Second end is connected with the first power supply, and the first end of the output loop of the 3rd relay is connected with output detection port LG.
In a kind of preferred embodiment of the present utility model, in addition to filtration module, filtration module include the first filtering
Submodule, the second filtering submodule and the 3rd filtering submodule；First filtering submodule and the first output end for isolating submodule
Series connection, the output end that the second filtering submodule isolates submodule with second are connected, and the 3rd filtering submodule isolates submodule with the 3rd
The output end series connection of block；First filtering submodule includes electric capacity C8 and resistance R11, and the of electric capacity C8 first end and resistance R11
One end is connected, electric capacity C8 the second end and resistance R11 the second end be connected to the ground respectively (herein " " for the negative of the first power supply
Pole, wherein the first power supply is the positive pole of the first power supply, magnitude of voltage+5V)；Second filtering submodule includes electric capacity C9 and resistance R17,
Electric capacity C9 first end is connected with resistance R17 first end, electric capacity C9 the second end and resistance R17 the second end respectively with ground phase
Even；3rd filtering submodule includes electric capacity C10 and resistance R21, and electric capacity C10 first end is connected with resistance R21 first end, electricity
Hold C10 the second end and resistance R21 the second end is connected to the ground respectively.In the present embodiment, filter circuit is not limited to use
RC filter circuits, L-type filter circuit or π type filter circuits can also be used.
In a kind of preferred embodiment of the present utility model, in addition to voltage follower, voltage follower include first
The sub- follower of voltage, the sub- follower of second voltage and the sub- follower of tertiary voltage；The sub- follower of first voltage and the first separaant
The output end series connection of module, the output end that the sub- follower of second voltage isolates submodule with second are connected, and tertiary voltage follows
The output end that device isolates submodule with the 3rd is connected.
In a kind of preferred embodiment of the present utility model, in addition to resistance R12, resistance R15 and resistance R22；Resistance
R12 connects with first voltage conduction detection submodule, and resistance R15 connects with second voltage conduction detection submodule, resistance R22 with
Tertiary voltage conduction detection submodule is connected.
In a kind of preferred embodiment of the present utility model, in addition to safe digital display module, safe digital display module include
Isolation module, 3-8 decoders and seven segment digital tubes, isolation module include the first isolation submodule, the second isolation submodule and the
Three isolation submodules；The input circuit of first isolation submodule is connected with first voltage conduction detection submodule, the first separaant
The output end of module is connected with the first input end of 3-8 decoders with output detection port LN；The input of second isolation submodule
Loop is connected with second voltage conduction detection submodule, the output end of the second isolation submodule and the second input of 3-8 decoders
End is connected with output detection port NG；The input circuit of 3rd isolation submodule is connected with tertiary voltage conduction detection submodule,
The output end of 3rd isolation submodule is connected with the output end of 3-8 decoders with seven segment digital tubes.In the present embodiment, 3-8
Decoder is not limited to select 74LS48, can also use other kinds of decoder；The model 7SEG-BCD- of seven segment digital tubes
RED, seven segment digital tubes can also be replaced with eight segment numeral pipes, its model 5161AS.The output end of its 74LS48 decoder with
The annexation of the segment numeral pipes of 5161AS eight will not be described here, and specifically connect referring to databook.
In a kind of preferred embodiment of the present utility model, in addition to safe digital display module, safe digital display module include
Isolator, processor and display, isolation module include the first isolation submodule, the second isolation submodule and the 3rd isolation submodule
Block；The input circuit of first isolation submodule is connected with first voltage conduction detection submodule, the output of the first isolation submodule
End is connected with the first input end of processor；The input circuit and second voltage conduction detection submodule string of second isolation submodule
Connection, the output end of the second isolation submodule are connected with the second input of processor；3rd isolation submodule input circuit with
Tertiary voltage conduction detection submodule is connected, and the output end of the 3rd isolation submodule is connected with the 3rd input of processor；Place
The output end of reason device is connected with display.In the present embodiment, processor is not limited to single-chip microcomputer, model 89C51 series.
The utility model additionally provides a kind of detecting system of power sense circuit, and the system is included power sense circuit
In inputting testing terminal L, inputting testing terminal N and inputting testing terminal G and single-phase alternating current or three-phase alternating current it is any
The detection port of phase is connected.In the present embodiment, single-phase electro-detection is specifically using connection as shown in Figure 1：Light emitting diode
D3 positive pole is connected with resistance R12 first end, and resistance R12 the second end is connected with diode D4 negative pole, diode D4's
Positive pole is connected with inputting testing terminal L, the positive pole of light emitting diode D3 negative pole and the light emitting diode in photoisolator U4
It is connected, the negative pole of the light emitting diode in photoisolator U4 is connected with inputting testing terminal N, three poles in photoisolator U4
The colelctor electrode of pipe is connected with resistance R8 first end, and resistance R8 the second end is connected with the first power supply, in photoisolator U4
The emitter stage of triode is connected with resistance R9 first end, resistance R9 the second end first end with electric capacity C8, resistance R11 respectively
First end be connected with amplifier A1 normal phase input end, electric capacity C8 the second end and resistance R11 the second end respectively with ground phase
Even, amplifier A1 inverting input is connected with resistance R10 first end, and resistance R10 the second end is respectively with amplifier A1's
Output end is connected with the first input end of processor；Light emitting diode D5 positive pole is connected with resistance R15 first end, resistance
R15 the second end is connected with diode D6 negative pole, and diode D6 positive pole is connected with inputting testing terminal N, light emitting diode
D5 negative pole is connected with the positive pole of the light emitting diode in photoisolator U6, and the light emitting diode in photoisolator U6 is born
Pole is connected with inputting testing terminal G, and the colelctor electrode of the triode in photoisolator U6 is connected with resistance R13 first end, electricity
Resistance R13 the second end is connected with the first power supply, the emitter stage of the triode in photoisolator U6 and resistance R14 first end phase
Even, the normal phase input end of resistance R14 the second end first end with electric capacity C9, resistance R17 first end and amplifier A2 respectively
It is connected, electric capacity C9 the second end and resistance R17 the second end are connected to the ground respectively, amplifier A2 inverting input and resistance
R16 first end is connected, resistance R16 the second end respectively with amplifier A2 output end and the second input phase of processor
Even；Light emitting diode D7 positive pole is connected with resistance R22 first end, resistance R22 the second end and diode D8 negative pole phase
Even, diode D8 positive pole is connected with inputting testing terminal G, light emitting diode D7 negative pole and lighting in photoisolator U7
The positive pole of diode is connected, and the negative pole of the light emitting diode in photoisolator U7 is connected with inputting testing terminal L, Phototube Coupling
The colelctor electrode of triode in device U7 is connected with resistance R19 first end, and resistance R19 the second end is connected with the first power supply, light
The emitter stage of triode in electric isolator U7 is connected with resistance R20 first end, resistance R20 the second end respectively with electric capacity
C10 first end, resistance R21 first end are connected with amplifier A3 normal phase input end, electric capacity C10 the second end and resistance
R21 the second end is connected to the ground respectively, and amplifier A3 inverting input is connected with resistance R18 first end, and the of resistance R18
Two ends are connected with amplifier A3 output end and the 3rd input of processor respectively；The output end of processor and display phase
Even, inputting testing terminal is connected with the detection port of single-phase electricity.Wherein, single-phase electricity specifically judges that relation is as shown in table 1.
The single-phase electricity of table 1. judges relation table
For example, work as diode displayingOr displayThen
Illustrate that the L lines in inputting testing terminal are connected with the N lines in single-phase electricity, the N lines in inputting testing terminal and the L lines in single-phase electricity
It is connected, the G lines in inputting testing terminal are connected with the G lines in single-phase electricity；The ground wire of now single phase alternating current power supply electricity consumption is reliable
Connection.Work as diode displayingOr displayThen illustrate now
The L lines of single phase alternating current power supply electricity consumption are not connected good, it is necessary to check the connection of single phase alternating current power supply L lines.Similarly, seven segment digital tubes are worked as
When showing 6, then illustrate that the L lines in inputting testing terminal are connected with the N lines in single-phase electricity, N lines and list in inputting testing terminal
Mutually the L lines in electricity are connected, and the G lines in inputting testing terminal are connected with the G lines in single-phase electricity；Now single phase alternating current power supply electricity consumption
Ground wire is to be reliably connected.When seven segment digital tubes show 0, then illustrate that the L lines of now single phase alternating current power supply electricity consumption are not connected with, need
Check the connection of single phase alternating current power supply L lines.
In addition, the detecting system of three-phase electricity is similar with single-phase electricity detecting system, will not be described here.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
- A kind of 1. power sense circuit, it is characterised in that including voltage turn-on detection module, the voltage turn-on detection module bag Include first voltage conduction detection submodule, second voltage conduction detection submodule and tertiary voltage conduction detection submodule；The positive pole of first voltage conduction detection submodule is connected with inputting testing terminal L, first voltage conduction detection submodule Negative pole is connected with inputting testing terminal N；The positive pole of second voltage conduction detection submodule is connected with inputting testing terminal N, second voltage conduction detection submodule Negative pole is connected with inputting testing terminal G；The positive pole of tertiary voltage conduction detection submodule is connected with inputting testing terminal G, tertiary voltage conduction detection submodule Negative pole is connected with inputting testing terminal L.
- 2. power sense circuit according to claim 1, it is characterised in that first voltage conduction detection submodule, second Voltage turn-on detection sub-module and tertiary voltage conduction detection submodule are that current lead-through instruction device or current lead-through indicate Device and Diode series.
- 3. power sense circuit according to claim 1, it is characterised in that also including isolation module, the isolation module Including the first isolation submodule, the second isolation submodule and the 3rd isolation submodule；The input circuit of first isolation submodule is connected with first voltage conduction detection submodule, the output of the first isolation submodule End is connected with output detection port LN；The input circuit of second isolation submodule is connected with second voltage conduction detection submodule, the output of the second isolation submodule End is connected with output detection port NG；The input circuit of 3rd isolation submodule is connected with tertiary voltage conduction detection submodule, the output of the 3rd isolation submodule End is connected with output detection port LG.
- 4. power sense circuit according to claim 3, it is characterised in that the first isolation submodule, the second isolation submodule Block and the 3rd isolation submodule are photoisolator.
- 5. power sense circuit according to claim 3, it is characterised in that also including filtration module, the filtration module Including the first filtering submodule, the second filtering submodule and the 3rd filtering submodule；The output end that first filtering submodule isolates submodule with first is connected, and the second filtering submodule isolates submodule with second Output end series connection, the 3rd filtering submodule with the 3rd isolates submodule output end series connection；First filtering submodule includes electric capacity C8 and resistance R11, and electric capacity C8 first end is connected with resistance R11 first end, electricity Hold C8 the second end and resistance R11 the second end is connected to the ground respectively；Second filtering submodule includes electric capacity C9 and resistance R17, and electric capacity C9 first end is connected with resistance R17 first end, electricity Hold C9 the second end and resistance R17 the second end is connected to the ground respectively；3rd filtering submodule includes electric capacity C10 and resistance R21, and electric capacity C10 first end is connected with resistance R21 first end, Electric capacity C10 the second end and resistance R21 the second end are connected to the ground respectively.
- 6. power sense circuit according to claim 3, it is characterised in that also including voltage follower, voltage follower Including the sub- follower of first voltage, the sub- follower of second voltage and the sub- follower of tertiary voltage；The output end that the sub- follower of first voltage isolates submodule with first is connected, the sub- follower of second voltage and the second separaant The output end series connection of module, the output end that the sub- follower of tertiary voltage isolates submodule with the 3rd are connected.
- 7. power sense circuit according to claim 1, it is characterised in that also including resistance R12, resistance R15 and resistance R22；Resistance R12 connects with first voltage conduction detection submodule, and resistance R15 connects with second voltage conduction detection submodule, Resistance R22 connects with tertiary voltage conduction detection submodule.
- 8. power sense circuit according to claim 1, it is characterised in that also including safe digital display module, the safety Digital display module includes isolation module, 3-8 decoders and seven segment digital tubes, and the isolation module includes the first isolation submodule, the Two isolation submodules and the 3rd isolation submodule；The input circuit of first isolation submodule is connected with first voltage conduction detection submodule, the output of the first isolation submodule Hold and be connected with the first input end of 3-8 decoders with output detection port LN；The input circuit of second isolation submodule is connected with second voltage conduction detection submodule, the output of the second isolation submodule Hold and be connected with the second input of 3-8 decoders with output detection port NG；The input circuit of 3rd isolation submodule is connected with tertiary voltage conduction detection submodule, the output of the 3rd isolation submodule End is connected with the output end of 3-8 decoders with seven segment digital tubes.
- 9. power sense circuit according to claim 1, it is characterised in that also including safe digital display module, the safety Digital display module includes isolation module, processor and display, and the isolation module includes the first isolation submodule, the second separaant Module and the 3rd isolation submodule；The input circuit of first isolation submodule is connected with first voltage conduction detection submodule, the output of the first isolation submodule End is connected with the first input end of processor；The input circuit of second isolation submodule is connected with second voltage conduction detection submodule, the output of the second isolation submodule End is connected with the second input of processor；The input circuit of 3rd isolation submodule is connected with tertiary voltage conduction detection submodule, the output of the 3rd isolation submodule End is connected with the 3rd input of processor；The output end of processor is connected with display.
- 10. the detecting system of a kind of power sense circuit using described in claim 1,8 or 9, it is characterised in that examine power supply Inputting testing terminal L, inputting testing terminal N and inputting testing terminal G and single-phase alternating current or three-phase alternating current in slowdown monitoring circuit The detection port of any phase of electricity is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720264129.2U CN206627607U (en) | 2017-03-17 | 2017-03-17 | Power sense circuit and its detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720264129.2U CN206627607U (en) | 2017-03-17 | 2017-03-17 | Power sense circuit and its detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206627607U true CN206627607U (en) | 2017-11-10 |
Family
ID=60208144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720264129.2U Active CN206627607U (en) | 2017-03-17 | 2017-03-17 | Power sense circuit and its detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206627607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942189A (en) * | 2018-01-04 | 2018-04-20 | 吉林省中赢高科技有限公司 | A kind of detection device of feeder ear wiring condition, conduction charging system and electric car |
| CN110235005A (en) * | 2017-12-19 | 2019-09-13 | 马鞍山市明珠电子科技有限公司 | Electrical equipment and the method for detecting electrical appliance ground state |
-
2017
- 2017-03-17 CN CN201720264129.2U patent/CN206627607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110235005A (en) * | 2017-12-19 | 2019-09-13 | 马鞍山市明珠电子科技有限公司 | Electrical equipment and the method for detecting electrical appliance ground state |
| CN107942189A (en) * | 2018-01-04 | 2018-04-20 | 吉林省中赢高科技有限公司 | A kind of detection device of feeder ear wiring condition, conduction charging system and electric car |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101650070B (en) | Electric water heater with ground wire electrification detection function | |
| CN207882337U (en) | High voltage display device with self-checking function | |
| CN206627607U (en) | Power sense circuit and its detecting system | |
| CN105871010A (en) | Intelligent storage battery clamp for automobile starting | |
| CN200979592Y (en) | An inspection apparatus for single-phase load of electric meter | |
| CN117496680A (en) | Electric fire monitoring detector circuit | |
| CN103795027B (en) | A kind of leakage current detection protection circuit | |
| CN2914443Y (en) | Surge protector of AC power supply | |
| CN206293878U (en) | A kind of action protecting device of Intelligent Measurement residual current | |
| CN201488255U (en) | Electric heater with earth wire live detection function | |
| CN206725672U (en) | A kind of ECU apparatus for monitoring working state of electronic controlled diesel | |
| CN103364688B (en) | Three-jack socket electric leakage detection circuit | |
| CN201868333U (en) | Relay control circuit with current detection function | |
| CN106300558A (en) | A kind of battery clamp | |
| CN106199458A (en) | A kind of power sense circuit | |
| CN103163452B (en) | A kind of for testing the circuit in temperature detect switch (TDS) life-span in ballast | |
| CN108107323A (en) | Threephase cable axis open circuit fault detector | |
| CN205791474U (en) | A kind of automatic protective system of elevator traction machine | |
| CN112230142B (en) | Alternating current motor fault detection circuit | |
| CN208581365U (en) | Control circuit suitable for multiple LED light | |
| CN207215946U (en) | From control module's address coding pin test fixture | |
| CN207994614U (en) | A kind of route protection monitoring device | |
| CN209215471U (en) | A kind of indicator whether detection distribution power supply line has electric current to pass through | |
| CN209432886U (en) | A kind of current detection circuit and current detecting system based on BUCK circuit | |
| CN208459524U (en) | A kind of three-phase motor break detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211207 Address after: 400020 room 15-9, unit 2, No. 8, Jianbei 1st branch road, Jiangbei District, Chongqing Patentee after: CHONGQING BEILAIDIAN NEW ENERGY CO.,LTD. Patentee after: STATE GRID SIJI SHENWANG POSITION SERVICE (BEIJING) Co.,Ltd. Patentee after: Zhao Guangjun Patentee after: Pan Biao Patentee after: Wang Binghui Address before: 400120 room 15-9, unit 2, No. 8, Jianbei 1st branch road, Jiangbei District, Chongqing Patentee before: CHONGQING BEILAIDIAN NEW ENERGY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400020 room 15-9, unit 2, No. 8, Jianbei 1st branch road, Jiangbei District, Chongqing Patentee after: CHONGQING BEILAIDIAN NEW ENERGY CO.,LTD. Patentee after: State Grid Siji Location Service Co.,Ltd. Patentee after: Zhao Guangjun Patentee after: Pan Biao Patentee after: Wang Binghui Address before: 400020 room 15-9, unit 2, No. 8, Jianbei 1st branch road, Jiangbei District, Chongqing Patentee before: CHONGQING BEILAIDIAN NEW ENERGY CO.,LTD. Patentee before: STATE GRID SIJI SHENWANG POSITION SERVICE (BEIJING) Co.,Ltd. Patentee before: Zhao Guangjun Patentee before: Pan Biao Patentee before: Wang Binghui |