CN209419310U - Power supply monitoring system for Softswitch - Google Patents
Power supply monitoring system for Softswitch Download PDFInfo
- Publication number
- CN209419310U CN209419310U CN201822235837.0U CN201822235837U CN209419310U CN 209419310 U CN209419310 U CN 209419310U CN 201822235837 U CN201822235837 U CN 201822235837U CN 209419310 U CN209419310 U CN 209419310U
- Authority
- CN
- China
- Prior art keywords
- resistance
- triode
- connect
- softswitch
- amplifier
- 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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000003760 hair shine Effects 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
A kind of power supply monitoring system for Softswitch provided by the utility model, output detection module, standby battery, power control circuit and switching control module including the input detection module for detecting Softswitch input power fluctuation status, the output state for detecting Softswitch DC power supply；The output end of the input detection module is connect with power control circuit, the output end of the output detection module is connect with power control circuit, the input terminal of the control switching circuit is connect with standby battery, the output end of the control switching circuit is connected to the power end of Softswitch, the control terminal of the control switching circuit and the control output end of power control circuit connect, the power control circuit is connect with upper main-machine communication, the capable AC of Softswitch can be inputted, direct current output is monitored, and after exchange input and direct current input are broken down, it can guarantee that Softswitch still is able to continue steady operation, so that it is guaranteed that the stability of entire powerline network.
Description
Technical field
The utility model relates to field of power communication more particularly to a kind of Softswitch running state monitoring systems.
Background technique
Soft switch provides the Call- Control1 and connection control function of the business with requirement of real-time for next generation network
Can, be the core of next generation network calling and control, in order to realize soft switch, need Softswitch, Softswitch it is steady
Qualitative relationships are to whole equipment and the stability of whole network, currently, the power supply stability for Softswitch controls one
As using the detection such as over-voltage, overcurrent, then alarm, however, still cannot be expired using over-voltage and over-current detection, protection in time
The demand of the power supply stability of sufficient Softswitch.
Therefore, in order to solve the above-mentioned technical problem, need to propose a kind of new technological means.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of Softswitch running state monitoring system, it can be right
The capable AC input of Softswitch, direct current output are monitored, and when exchange input and direct current input are broken down
Afterwards, it can guarantee that Softswitch still is able to continue steady operation, so that it is guaranteed that the stability of entire powerline network.
A kind of power supply monitoring system for Softswitch provided by the utility model, including set for detecting soft switch
The output inspection of output state for the input detection module of input power fluctuation status, for detecting Softswitch DC power supply
Survey module, standby battery, power control circuit and switching control module；
It is described input detection module output end connect with power control circuit, it is described export detection module output end and
Power control circuit connection, the input terminal of the control switching circuit are connect with standby battery, the control switching circuit
Output end is connected to the power end of Softswitch, and the control terminal of the control switching circuit and the control of power control circuit are defeated
Outlet connection, the power control circuit are connect with upper main-machine communication.
Further, the input detection module includes voltage transformer pt, rectification circuit REC, zener diode DW1, fortune
Put U1, resistance R1, resistance R2, adjustable resistance R3, resistance R4, resistance R5, adjustable resistance R6, resistance R7, resistance R8, amplifier U3,
Controllable accurate source of stable pressure U2, optocoupler G1 and diode D1；
The voltage transformer pt is described for detecting the ac input end AC-input voltage for being input to Softswitch
The output end of current transformer PT is connect with the input terminal of rectification circuit REC, and the output end of the rectification circuit is with amplifier U1's
In-phase end connection, the reverse side of amplifier U1 are connect with the output end of amplifier U1, the in-phase end and zener diode of the amplifier U1
The cathode of DW1 connects, and the output end of the plus earth of zener diode DW1, the amplifier U1 is connect with one end of resistance R1, electricity
Resistance R1 the other end connect with one end of resistance R2, the other end of resistance R2 is grounded by adjustable resistance R3, adjustable resistance R3 with
Points of common connection between resistance R2 is connect with the in-phase end of amplifier U3, the output single pass-through resistance R8 and optocoupler G1 of amplifier U3
Light emitting diode anode connection, the light emitting diode of optocoupler G1 cathode ground connection, the transmitting of the phototriode of optocoupler G1
Pole ground connection, the collector of the phototriode of optocoupler G1 are connect with the cathode of diode D1, and the anode of diode D1 is connected to electricity
The input terminal CON1 of source control circuit；
One end of resistance R4 is connected to power supply VCC, and the other end of resistance R4 is connected to the reverse phase of amplifier U1 by resistance R7
End, the cathode of controllable accurate source of stable pressure U2 are connected to the points of common connection between resistance R4 and resistance R7, controllable accurate source of stable pressure
The plus earth of U2, one end of resistance R5 are connected to power supply VCC, and the other end is grounded by adjustable resistance R6, adjustable resistance R6 and
Points of common connection between resistance R5 is connect with the reference pole of controllable accurate source of stable pressure U2.
Further, the output detection circuit includes resistance R16, adjustable resistance R17, adjustable resistance R17, resistance R18, electricity
Hinder R19, resistance R20, resistance R21, resistance R22, amplifier U6, controllable accurate source of stable pressure U5, optocoupler G2 and diode D3；
One end of resistance R16 is connected to the DC power output end of Softswitch, and the other end is connect by adjustable resistance R17
Ground, the points of common connection between adjustable resistance R17 and resistance R16 are connect with the in-phase end of amplifier U6, the output single-pass of amplifier U6
It crosses resistance R22 to connect with the anode of the light emitting diode of optocoupler G2, the cathode ground connection of the light emitting diode of optocoupler G2, optocoupler G2
Phototriode emitter ground connection, the collector of the phototriode of optocoupler G2 connect with the cathode of diode D2, two poles
The anode of pipe D2 is connected to the input terminal CON3 of power control circuit；
One end of resistance R19 is connected to power supply VCC, and the other end of resistance R19 is connected to the anti-of amplifier U6 by resistance R21
Xiang Duan, the cathode of controllable accurate source of stable pressure U5 are connected to the points of common connection between resistance R19 and resistance R21, and controllable accurate is steady
The plus earth of potential source U5, one end of resistance R18 are connected to power supply VCC, and the other end is grounded by adjustable resistance R20, adjustable electric
Points of common connection between resistance R20 and resistance R18 is connect with the reference pole of controllable accurate source of stable pressure U5.
Further, the control switching circuit includes resistance R9, adjustable resistance R10, resistance R11, resistance R12, controllable essence
Close source of stable pressure U4, triode Q1, triode Q2, triode Q3, resistance R13, resistance R14, resistance R15, voltage-stabiliser tube DW2, capacitor
C1, normally closed relay and diode D2；
One end of the resistance R9 is connected to the output end Vbat of standby battery as the input terminal of control switching circuit,
The other end of resistance R9 is connect with the collector of triode Q2, and the points of common connection between resistance R9 and triode Q2 passes through adjustable
It is grounded after resistance R10 and resistance R11 series connection, the points of common connection between resistance R9 and triode Q2 is connected to by resistance R12
The reference pole of the cathode of controllable accurate source of stable pressure U4, the plus earth of controllable accurate source of stable pressure U4, controllable accurate source of stable pressure U4 connects
The points of common connection being connected between adjustable resistance R10 and resistance R11, the base stage of triode Q1 are connected to controllable accurate source of stable pressure U4
Cathode, the emitter of triode Q1 is connected to the points of common connection between resistance R9 and triode Q2, the current collection of triode Q1
Pole ground connection, the base stage of triode Q2 are connect by resistance R13 with the cathode of diode D2 with resistance, the anode connection of diode D2
Soft friendship is connected to as the output end of control switching circuit in the emitter of the control terminal CON2 of power control circuit, triode Q2
The electrical equipment power input of exchange device, one end of resistance R14 are connected to the emitter of triode Q2, and resistance R14's is another
End is connected to the base stage of triode Q3, and the base stage of triode Q3 is grounded by capacitor C1, the base stage and voltage-stabiliser tube DW2 of triode Q3
Cathode, the plus earth of voltage-stabiliser tube DW2, the collector of triode Q3 is connected to the transmitting of triode Q2 by resistance R15
The emitter of pole, triode Q3 is grounded by the coil J1 of normally closed relay, and the normally closed switch J1-K of normally closed relay is set to
Between the DC power output end of Softswitch and the input terminal of electrical equipment.
The utility model has the beneficial effects that can be inputted to the capable AC of Softswitch by the utility model, is straight
Stream output is monitored, and after exchange input and direct current input are broken down, can guarantee that Softswitch still can
Enough continue steady operation, so that it is guaranteed that the stability of entire powerline network.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples:
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the input detecting circuit schematic diagram of the utility model.
Fig. 3 is the output detection circuit schematic diagram of the utility model.
Fig. 4 is the control switching circuit schematic diagram of the utility model.
Specific embodiment
Further description is made to the present invention below in conjunction with Figure of description, as shown in the figure:
A kind of power supply monitoring system for Softswitch provided by the utility model, including set for detecting soft switch
The output inspection of output state for the input detection module of input power fluctuation status, for detecting Softswitch DC power supply
Survey module, standby battery, power control circuit and switching control module；
It is described input detection module output end connect with power control circuit, it is described export detection module output end and
Power control circuit connection, the input terminal of the control switching circuit are connect with standby battery, the control switching circuit
Output end is connected to the power end of Softswitch, and the control terminal of the control switching circuit and the control of power control circuit are defeated
Outlet connection, the power control circuit are connect with upper main-machine communication, can be to the electricity of Softswitch by above structure
Source exchange input, direct current output are monitored, and after exchange input and direct current input are broken down, are switched in time standby
With storage battery power supply state, warning information is generated by power control circuit and is uploaded, can guarantee that Softswitch still can
Enough continue steady operation, so that it is guaranteed that the stability of entire powerline network, also, the utility model haves no need to change soft friendship
The structure of the original DC power-supply circuit of exchange device, easy to use, power control circuit uses existing single-chip microcontroller, such as AVR
Single-chip microcontroller.
In the present embodiment, the input detection module includes voltage transformer pt, rectification circuit REC, zener diode
DW1, amplifier U1, resistance R1, resistance R2, adjustable resistance R3, resistance R4, resistance R5, adjustable resistance R6, resistance R7, resistance R8, fortune
Put U3, controllable accurate source of stable pressure U2, optocoupler G1 and diode D1；
The voltage transformer pt is described for detecting the ac input end AC-input voltage for being input to Softswitch
The output end of current transformer PT is connect with the input terminal of rectification circuit REC, and the output end of the rectification circuit is with amplifier U1's
In-phase end connection, the reverse side of amplifier U1 are connect with the output end of amplifier U1, the in-phase end and zener diode of the amplifier U1
The cathode of DW1 connects, and the output end of the plus earth of zener diode DW1, the amplifier U1 is connect with one end of resistance R1, electricity
Resistance R1 the other end connect with one end of resistance R2, the other end of resistance R2 is grounded by adjustable resistance R3, adjustable resistance R3 with
Points of common connection between resistance R2 is connect with the in-phase end of amplifier U3, the output single pass-through resistance R8 and optocoupler G1 of amplifier U3
Light emitting diode anode connection, the light emitting diode of optocoupler G1 cathode ground connection, the transmitting of the phototriode of optocoupler G1
Pole ground connection, the collector of the phototriode of optocoupler G1 are connect with the cathode of diode D1, and the anode of diode D1 is connected to electricity
The input terminal CON1 of source control circuit；
One end of resistance R4 is connected to power supply VCC, and the other end of resistance R4 is connected to the reverse phase of amplifier U1 by resistance R7
End, the cathode of controllable accurate source of stable pressure U2 are connected to the points of common connection between resistance R4 and resistance R7, controllable accurate source of stable pressure
The plus earth of U2, one end of resistance R5 are connected to power supply VCC, and the other end is grounded by adjustable resistance R6, adjustable resistance R6 and
Points of common connection between resistance R5 is connect with the reference pole of controllable accurate source of stable pressure U2, and amplifier U1 constitutes voltage follower, with
It is conveniently used for providing accurate voltage detection signal for subsequent conditioning circuit, on the other hand, for isolated voltage transformer PT and subsequent
Circuit, rectification circuit REC use the whole bridge rectifier circuit of existing diode composition；The voltage letter that amplifier U3 is used to will test
It number is compared with base reference signal, when measurement voltage is higher than reference voltage, exports high level, optocoupler G1 is connected, thus
The level that the input CON1 of power control circuit is dragged down by phototriode, characterizes the overtension of current electric grid, electricity
Source control circuit exports control command to control switching circuit.
In the present embodiment, the output detection circuit includes resistance R16, adjustable resistance R17, adjustable resistance R17, resistance
R18, resistance R19, resistance R20, resistance R21, resistance R22, amplifier U6, controllable accurate source of stable pressure U5, optocoupler G2 and diode
D3；
One end of resistance R16 is connected to the DC power output end of Softswitch, and the other end is connect by adjustable resistance R17
Ground, the points of common connection between adjustable resistance R17 and resistance R16 are connect with the in-phase end of amplifier U6, the output single-pass of amplifier U6
It crosses resistance R22 to connect with the anode of the light emitting diode of optocoupler G2, the cathode ground connection of the light emitting diode of optocoupler G2, optocoupler G2
Phototriode emitter ground connection, the collector of the phototriode of optocoupler G2 connect with the cathode of diode D2, two poles
The anode of pipe D2 is connected to the input terminal CON3 of power control circuit；
One end of resistance R19 is connected to power supply VCC, and the other end of resistance R19 is connected to the anti-of amplifier U6 by resistance R21
Xiang Duan, the cathode of controllable accurate source of stable pressure U5 are connected to the points of common connection between resistance R19 and resistance R21, and controllable accurate is steady
The plus earth of potential source U5, one end of resistance R18 are connected to power supply VCC, and the other end is grounded by adjustable resistance R20, adjustable electric
Points of common connection between resistance R20 and resistance R18 is connect with the reference pole of controllable accurate source of stable pressure U5, this circuit and input detect
The back-end circuit structure of the resistance R1 of circuit is identical, and the output for the DC power supply to Softswitch detects, and works as soft switch
When the voltage of the DC power supply output of equipment is lower than setting voltage, amplifier U6 exports high level, to drag down power control circuit
The level of input terminal CON3, power control circuit exports control command to control switching circuit, also, power control circuit will also
Warning information is generated into remote monitoring unit according to the level change situation of input terminal CON3 and input terminal CON1.
In the present embodiment, the control switching circuit include resistance R9, adjustable resistance R10, resistance R11, resistance R12, can
Control precision voltage regulator U4, triode Q1, triode Q2, triode Q3, resistance R13, resistance R14, resistance R15, voltage-stabiliser tube DW2,
Capacitor C1, normally closed relay and diode D2；
One end of the resistance R9 is connected to the output end Vbat of standby battery as the input terminal of control switching circuit,
The other end of resistance R9 is connect with the collector of triode Q2, and the points of common connection between resistance R9 and triode Q2 passes through adjustable
It is grounded after resistance R10 and resistance R11 series connection, the points of common connection between resistance R9 and triode Q2 is connected to by resistance R12
The reference pole of the cathode of controllable accurate source of stable pressure U4, the plus earth of controllable accurate source of stable pressure U4, controllable accurate source of stable pressure U4 connects
The points of common connection being connected between adjustable resistance R10 and resistance R11, the base stage of triode Q1 are connected to controllable accurate source of stable pressure U4
Cathode, the emitter of triode Q1 is connected to the points of common connection between resistance R9 and triode Q2, the current collection of triode Q1
Pole ground connection, the base stage of triode Q2 are connect by resistance R13 with the cathode of diode D2 with resistance, the anode connection of diode D2
Soft friendship is connected to as the output end of control switching circuit in the emitter of the control terminal CON2 of power control circuit, triode Q2
The electrical equipment power input of exchange device, one end of resistance R14 are connected to the emitter of triode Q2, and resistance R14's is another
End is connected to the base stage of triode Q3, and the base stage of triode Q3 is grounded by capacitor C1, the base stage and voltage-stabiliser tube DW2 of triode Q3
Cathode, the plus earth of voltage-stabiliser tube DW2, the collector of triode Q3 is connected to the transmitting of triode Q2 by resistance R15
The emitter of pole, triode Q3 is grounded by the coil J1 of normally closed relay, and the normally closed switch J1-K of normally closed relay is set to
Between the DC power output end of Softswitch and the input terminal of electrical equipment, triode Q1, controllable accurate source of stable pressure U4 group
At a constant voltage circuit, the voltage stabilization for exporting standby battery, also, the collector of triode Q2 and resistance R9's is public
Tie point out-put supply VCC is provided and input detecting circuit and output detection circuit, as the input terminal CON3 of power control circuit
When becoming low level with CON1, the control output end CON2 of power control circuit exports high level, triode Q2 is connected, three poles
After pipe Q2 conducting, triode Q3 conducting, normally closed relay work disconnects normally closed switch J1-K, to cut off Softswitch
DC power supply to power supply for electrical equipment, then be powered by standby battery, so that it is guaranteed that the electricity consumption of Softswitch is pacified
Full property and stability.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (4)
1. a kind of power supply monitoring system for Softswitch, it is characterised in that: including for detecting Softswitch input
The output of the input detection module of power-supply fluctuation state, output state for detecting Softswitch DC power supply detects mould
Block, standby battery, power control circuit and switching control module；
The output end of the input detection module is connect with power control circuit, the output end and power supply of the output detection module
Control circuit connection, the input terminal of the switching control module are connect with standby battery, the output of the switching control module
End is connected to the power end of Softswitch, the control terminal of the switching control module and the control output end of power control circuit
Connection, the power control circuit are connect with upper main-machine communication.
2. being used for the power supply monitoring system of Softswitch according to claim 1, it is characterised in that: the input detects mould
Block include voltage transformer pt, rectification circuit REC, zener diode DW1, amplifier U1, resistance R1, resistance R2, adjustable resistance R3,
Resistance R4, resistance R5, adjustable resistance R6, resistance R7, resistance R8, amplifier U3, controllable accurate source of stable pressure U2, optocoupler G1 and two poles
Pipe D1；
The voltage transformer pt is for detecting the ac input end AC-input voltage for being input to Softswitch, the voltage
The output end of mutual inductor PT is connect with the input terminal of rectification circuit REC, the same phase of the output end and amplifier U1 of the rectification circuit
End connection, the reverse side of amplifier U1 are connect with the output end of amplifier U1, and the in-phase end of the amplifier U1 is with zener diode DW1's
Cathode connection, the output end of the plus earth of zener diode DW1, the amplifier U1 are connect with one end of resistance R1, resistance R1
The other end connect with one end of resistance R2, the other end of resistance R2 is grounded by adjustable resistance R3, adjustable resistance R3 and resistance
Points of common connection between R2 is connect with the in-phase end of amplifier U3, and the output single pass-through resistance R8's and optocoupler G1 of amplifier U3 shines
The anode connection of diode, the cathode ground connection of the light emitting diode of optocoupler G1, the emitter ground connection of the phototriode of optocoupler G1,
The collector of the phototriode of optocoupler G1 is connect with the cathode of diode D1, and the anode of diode D1 is connected to power supply control electricity
The input terminal CON1 on road；
One end of resistance R4 is connected to power supply VCC, and the other end of resistance R4 is connected to the reverse side of amplifier U1 by resistance R7, can
The cathode of control precision voltage regulator U2 is connected to the points of common connection between resistance R4 and resistance R7, and controllable accurate source of stable pressure U2 is just
Pole ground connection, one end of resistance R5 are connected to power supply VCC, and the other end is grounded by adjustable resistance R6, adjustable resistance R6 and resistance R5
Between points of common connection connect with the reference pole of controllable accurate source of stable pressure U2.
3. being used for the power supply monitoring system of Softswitch according to claim 2, it is characterised in that: the output detection electricity
Road includes resistance R16, adjustable resistance R17, adjustable resistance R17, resistance R18, resistance R19, resistance R20, resistance R21, resistance
R22, amplifier U6, controllable accurate source of stable pressure U5, optocoupler G2 and diode D3；
One end of resistance R16 is connected to the DC power output end of Softswitch, and the other end is grounded by adjustable resistance R17,
Points of common connection between adjustable resistance R17 and resistance R16 is connect with the in-phase end of amplifier U6, the output single pass-through electricity of amplifier U6
Resistance R22 is connect with the anode of the light emitting diode of optocoupler G2, and the cathode ground connection of the light emitting diode of optocoupler G2, optocoupler G2's is photosensitive
The emitter of triode is grounded, and the collector of the phototriode of optocoupler G2 is connect with the cathode of diode D2, diode D2's
Anode is connected to the input terminal CON3 of power control circuit；
One end of resistance R19 is connected to power supply VCC, and the other end of resistance R19 is connected to the reverse phase of amplifier U6 by resistance R21
End, the cathode of controllable accurate source of stable pressure U5 are connected to the points of common connection between resistance R19 and resistance R21, controllable accurate pressure stabilizing
The plus earth of source U5, one end of resistance R18 are connected to power supply VCC, and the other end is grounded by adjustable resistance R20, adjustable resistance
Points of common connection between R20 and resistance R18 is connect with the reference pole of controllable accurate source of stable pressure U5.
4. being used for the power supply monitoring system of Softswitch according to claim 3, it is characterised in that: the switching control mould
Block include resistance R9, adjustable resistance R10, resistance R11, resistance R12, controllable accurate source of stable pressure U4, triode Q1, triode Q2,
Triode Q3, resistance R13, resistance R14, resistance R15, voltage-stabiliser tube DW2, capacitor C1, normally closed relay and diode D2；
One end of the resistance R9 is connected to the output end Vbat of standby battery, resistance as the input terminal of switching control module
The other end of R9 is connect with the collector of triode Q2, and the points of common connection between resistance R9 and triode Q2 passes through adjustable resistance
It is grounded after R10 and resistance R11 series connection, the points of common connection between resistance R9 and triode Q2 is connected to controllably by resistance R12
The reference pole of the cathode of precision voltage regulator U4, the plus earth of controllable accurate source of stable pressure U4, controllable accurate source of stable pressure U4 is connected to
Points of common connection between adjustable resistance R10 and resistance R11, the base stage of triode Q1 are connected to the negative of controllable accurate source of stable pressure U4
Pole, the emitter of triode Q1 are connected to the points of common connection between resistance R9 and triode Q2, and the collector of triode Q1 connects
The base stage on ground, triode Q2 is connect by resistance R13 with the cathode of diode D2 with resistance, and the anode of diode D2 is connected to electricity
The emitter of the control terminal CON2 of source control circuit, triode Q2 are connected to soft switch as the output end of switching control module and set
Standby electrical equipment power input, one end of resistance R14 are connected to the emitter of triode Q2, and the other end of resistance R14 connects
It is connected to the base stage of triode Q3, the base stage of triode Q3 is grounded by capacitor C1, the base stage of triode Q3 and bearing for voltage-stabiliser tube DW2
Pole, the plus earth of voltage-stabiliser tube DW2, the collector of triode Q3 are connected to the emitter of triode Q2, three poles by resistance R15
The emitter of pipe Q3 is grounded by the coil J1 of normally closed relay, and the normally closed switch J1-K of normally closed relay is set to soft switch and sets
Between the input terminal of standby DC power output end and electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822235837.0U CN209419310U (en) | 2018-12-28 | 2018-12-28 | Power supply monitoring system for Softswitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822235837.0U CN209419310U (en) | 2018-12-28 | 2018-12-28 | Power supply monitoring system for Softswitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209419310U true CN209419310U (en) | 2019-09-20 |
Family
ID=67941352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822235837.0U Active CN209419310U (en) | 2018-12-28 | 2018-12-28 | Power supply monitoring system for Softswitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209419310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049095A (en) * | 2019-12-13 | 2020-04-21 | 国家电网有限公司 | Cross-region integrated relay protection system |
| CN112398318A (en) * | 2020-10-29 | 2021-02-23 | 星展测控科技股份有限公司 | Power supply control device and communication-in-motion equipment |
-
2018
- 2018-12-28 CN CN201822235837.0U patent/CN209419310U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049095A (en) * | 2019-12-13 | 2020-04-21 | 国家电网有限公司 | Cross-region integrated relay protection system |
| CN112398318A (en) * | 2020-10-29 | 2021-02-23 | 星展测控科技股份有限公司 | Power supply control device and communication-in-motion equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110212594A (en) | A kind of route CT energy acquisition and accumulation power supply | |
| CN209419310U (en) | Power supply monitoring system for Softswitch | |
| CN208272700U (en) | Electric power auxiliary power supply system | |
| CN102170178A (en) | High-voltage transmission line current coupling electricity-getting device | |
| CN108736567A (en) | Power supply system for electric power monitoring | |
| CN110061566A (en) | Internet of Things low-voltage platform area distribution transforming intelligent Circuit Breaker Controller | |
| CN108834278A (en) | A kind of wireless street lamp micro-base station controller | |
| CN206850446U (en) | A kind of intelligent load-balancing regulator | |
| CN206004403U (en) | Stand-by power supply handover module and underground pipeline finder | |
| CN202026162U (en) | Current coupling power taking device for high-tension transmission line | |
| CN209151409U (en) | A kind of wireless street lamp micro-base station controller | |
| CN204361769U (en) | A kind of power circuit with solar energy and civil power duplicate supply interface | |
| CN208210264U (en) | Duplicate supply formula Bluetooth audio device power supply device | |
| CN217954551U (en) | Power grid under-voltage and over-voltage alarm circuit | |
| CN207557357U (en) | A kind of three-phase input power phase shortage detection circuit | |
| CN203800561U (en) | Three-phase self-reset over-voltage and under-voltage protector based on single chip microcomputer | |
| CN205693430U (en) | A kind of acquisition terminal double-power supply switching device | |
| CN206041631U (en) | Permanent magnetism on -off controller of super capacitor energy supply | |
| CN208735289U (en) | A kind of utilidor leak detecting device | |
| CN205693429U (en) | Acquisition terminal dual power supply control switching circuit | |
| CN210927206U (en) | Charge-discharge control circuit of solar energy collecting power supply | |
| CN203205828U (en) | LED driving power supply input overvoltage protection circuit | |
| CN207964933U (en) | Electric transmission line hot-line indicates system | |
| CN209232135U (en) | Ammeter collector and long-distance meter-reading system | |
| CN209267179U (en) | A kind of electric power controller controlled by audio signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |