CN208257783U - A kind of more power supply electrifying sequential control circuits - Google Patents
A kind of more power supply electrifying sequential control circuits Download PDFInfo
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- CN208257783U CN208257783U CN201820925294.2U CN201820925294U CN208257783U CN 208257783 U CN208257783 U CN 208257783U CN 201820925294 U CN201820925294 U CN 201820925294U CN 208257783 U CN208257783 U CN 208257783U
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Abstract
The utility model relates to a kind of more power supply electrifying sequential control circuits, including first upper power supply module, upper power supply module and delays time to control module afterwards, the input terminal of the output end connection delays time to control module of the first upper power supply module, the enabled control terminal of upper power supply module after the output end connection of the delays time to control module, the delays time to control module includes delay circuit and delay power control switch, the enabled control terminal of upper power supply module after the delay power control switch connection, the delays time to control module further includes optocoupler, it is isolated for realizing the voltage between the first output end of upper power supply module and the first driving power of upper power supply module；The output end of the first upper power supply module connects the primary side of optocoupler by delay circuit, and optical coupling secondary edges connect the first driving power of upper power supply module and delay power-supplying circuit.The utility model realizes the optical isolation between high and low pressure system, it is ensured that the safety and reliability of system operation.
Description
Technical field
The utility model relates to power supply control technology fields, and in particular to a kind of more power supply electrifying sequential control circuits.
Background technique
With the development of electronic circuit, power supply structure becomes to become increasingly complex, and under these circumstances, many electronic circuits are all
There is electrifying timing sequence requirement, the timing control of multiple power supplies also becomes extremely complex, does not require nothing more than multiple power supplies power supply, and in electricity
Electrifying timing sequence between each circuit module of sub-circuit has the requirement of a bit, such as photovoltaic grid-connected inversion in the prior art
Device.Photovoltaic combining inverter is that a kind of electric power that the direct current energy for generating solar panel is converted to AC energy is electric
Sub-device.Its core is being switched on or off and by reactor and electricity by control power electronic power device (such as IGBT)
The sine wave of desired standard is exported after the filtering of container.The switching signal driving voltage of IGBT is ± 15V, and the big portion of controller
Dividing supply voltage is ﹢ 5V, and the two power supply takes electricity and started to work from DC bus.The stage in beginning is being powered on, if driving electricity
The power supply of pressure ± 15V preferentially reaches the switching voltage of IGBT, and controls voltage ﹢ 5V ratio ± 15V late, the meeting that reaches time of rated voltage
IGBT switching signal is caused to be in uncontrollable state, it is possible to will cause IGBT and mislead, IGBT is caused to damage.In the application back
Under scape, need to control that voltage is more preferential than driving voltage powers on, to guarantee IGBT in the switch driving letter for powering on the initial stage
Number be in controllable state, avoid IGBT from being damaged.
Patent document " a kind of power-on time sequence control circuit " (application number: 200820126660.4) discloses a kind of more power supplys
Power-on time sequence control circuit.Although the circuit can be realized the control of the electrifying timing sequence of power supply, but the circuit is not suitable for
The occasion for needing high-low voltage to be isolated, such as photovoltaic combining inverter, the power supply of power module is from DC bus (high pressure system
System) on take electricity, and obtain low-voltage (low-pressure system) after power module is converted and loaded for controller or other low-voltages
Power supply, if when being delayed upper electric control without the isolation between high and low pressure system, just will affect system safety and
Reliability.
Utility model content
The utility model provides a kind of more power supply electrifying sequential control circuits, to solve existing power supply electrifying timing control
When circuit processed is applied to high-low voltage power source system, the problem of the safety and reliability difference of system.
In order to solve the above technical problems, more power supply electrifying sequential control circuits of the utility model include following 12 lists
Element plan:
Unit scheme one, more power supply electrifying sequential control circuits include first upper power supply module, afterwards upper power supply module
And delays time to control module, the input terminal of the output end connection delays time to control module of the first upper power supply module, the delay control
The enabled control terminal of upper power supply module, the delays time to control module include delay circuit and prolong after the output end connection of molding block
When power control switch, the enabled control terminal of upper power supply module, the delay are controlled after the delay power control switch connection
Molding block further includes optocoupler, for realizing the first output end of upper power supply module and first between the driving power of upper power supply module
Voltage isolation；The output end of the first upper power supply module connects the primary side of optocoupler, optical coupling secondary edges connection by delay circuit
The first driving power of upper power supply module and delay power-supplying circuit.
Unit scheme two, on the basis of unit scheme one, the delay circuit includes resistance (R5), capacitor (C1), TVS
(D2) and triode (Q2) are managed, first above the output end of power supply module, the other end connect TVS pipe for resistance one end (R5) connection
(D2) cathode, the anode of TVS pipe (D2) connect the base stage of triode (Q2), and capacitor one end (C1) connects the cathode of TVS pipe (D2),
Other end connection first powers on power module outlet cathode, the light emitting diode of the collector connection optocoupler primary side of triode (Q2)
Cathode；The emitter connection of triode (Q2) first powers on power module outlet cathode.
Unit scheme three, on the basis of unit scheme two, the delay power control switch is metal-oxide-semiconductor (Q1), described
The enabled control terminal of upper power supply module after the drain electrode connection of metal-oxide-semiconductor (Q1), the source electrode ground connection of metal-oxide-semiconductor (Q1)；Metal-oxide-semiconductor (Q1)
Grid connects the collector of optical coupling secondary edges triode, and the emitter of the optical coupling secondary edges triode connects on first further through divider resistance
The anode of the driving power of power supply module；Upper power supply module enables control terminal and is used for when hanging after described, after power on electricity
The enabled output of source module is then forbidden exporting when input signal is low level.
Unit scheme four, on the basis of unit scheme two, the delay power control switch is metal-oxide-semiconductor (Q1), described
The enabled control terminal of upper power supply module after the drain electrode connection of metal-oxide-semiconductor (Q1), the source electrode connection of metal-oxide-semiconductor (Q1) first power on power supply mould
The anode of the driving power of block；The collector of the triode on the secondary side of the grid connection optocoupler of metal-oxide-semiconductor (Q1), the secondary side of optocoupler
The emitter of triode connects the anode of the first driving power of upper power supply module；Upper power supply module enables control terminal after described
For it is hanging when, the enabled output of upper power supply module afterwards is then forbidden exporting when input signal is high level.
Unit scheme five, on the basis of unit scheme two, the delay power control switch is metal-oxide-semiconductor (Q1), metal-oxide-semiconductor
(Q1) the enabled control terminal of upper power supply module, the source electrode of metal-oxide-semiconductor (Q1) also pass through a resistance (R7) and connect after source electrode connection
Ground, the drain electrode of metal-oxide-semiconductor (Q1) connect the anode of the first driving power of upper power supply module；The grid of metal-oxide-semiconductor (Q1) passes through partial pressure
Resistance connects the emitter of optical coupling secondary edges triode, the collector connection of the optical coupling secondary edges triode first above drive of power supply module
The anode of dynamic power supply；Upper power supply module enables control terminal and is used to work as input signal to be high level after described, then powers on power supply afterwards
The enabled output of module is then forbidden exporting when input signal is low level.
Unit scheme six, on the basis of unit scheme two, the delay power control switch is metal-oxide-semiconductor (Q1), metal-oxide-semiconductor
(Q1) the enabled control terminal of upper power supply module, the source electrode of metal-oxide-semiconductor (Q1) also pass through a resistance (R7) and connect after source electrode connection
Ground；The drain electrode of metal-oxide-semiconductor (Q1) connects the anode of the first driving power of upper power supply module；The grid of metal-oxide-semiconductor (Q1) passes through partial pressure
Resistance connects the collector of optical coupling secondary edges triode, the emitter ground connection of the optical coupling secondary edges triode；Power supply mould is powered on after described
Block enables control terminal and is used to when input signal be low level, then the enabled output of upper power supply module afterwards, when input signal is high electricity
It is flat, then forbid exporting.
Unit scheme seven, eight, nine respectively corresponds on the basis of unit scheme three, four, six, the grid of the metal-oxide-semiconductor (Q1)
Voltage-stabiliser tube (D1) is connected between pole and ground.
Unit scheme ten, 11,12 respectively corresponds on the basis of unit scheme seven, eight, nine, described first to power on electricity
Source module be in photovoltaic combining inverter for be controller power supply power module, after described upper power supply module be photovoltaic simultaneously
For the power module for power electronic power device power supply in net inverter, the driving power of the first upper power supply module is
DC bus.
The beneficial effects of the utility model are: between high and low pressure system be provided with optocoupler, realize high and low pressure system it
Between optical isolation, strong antijamming capability, it is ensured that system operation safety and reliability.
Delay parameter can be widely applied according to practical application request flexible setting to similar application occasion.It is low in cost,
An optocoupler is only needed, two switching tubes, two voltage-stabiliser tubes and several resistance, circuit are small in size.It is low in energy consumption, when photovoltaic simultaneously
After net inverter system operates normally, the power consumption of only one light emitting diode of the circuit.
Detailed description of the invention
Fig. 1 is the functional block diagram of more power supply electrifying sequential control circuits of the utility model；
Fig. 2 is the circuit diagram one of more power supply electrifying sequential control circuits of the utility model；
Fig. 3 is the circuit diagram two of more power supply electrifying sequential control circuits of the utility model；
Fig. 4 is the circuit diagram three of more power supply electrifying sequential control circuits of the utility model；
Fig. 5 is the circuit diagram four of more power supply electrifying sequential control circuits of the utility model；
Fig. 6 is the circuit diagram five of more power supply electrifying sequential control circuits of the utility model.
Specific embodiment
With reference to the accompanying drawing, the technical solution of the utility model is described further.
Fig. 1 is the functional block diagram of more power supply electrifying sequential control circuits of the utility model, more power supply electrifying timing control
Circuit includes first upper power supply module 1, and upper power supply module 2 and delays time to control module 3 form afterwards, wherein after power on power supply mould
Block 2 is to postpone output with the power module for making to can control pin, and after needing the formerly upper output of power supply module 1；On first
Power supply module 1 preferentially exports；The input signal of delays time to control module 3 is provided by first upper power supply module 1, output signal connection
To rear upper power supply module 2 make can control pin.
Wherein, delays time to control module includes delay circuit, optocoupler and delay power control switch.Delay circuit for realizing
The delay of power supply, including a resistance and a capacitor are carried out subsequent by giving capacitor charging when current potential reaches setting voltage
Control realize after upper power supply module output.Optocoupler is for realizing first upper power supply module and the driving of upper power supply module afterwards
Power supply and the optical isolation between power module outlet is first powered on, to improve the safety and reliability of system.Delay power supply
Control switch connection makes to can control pin, opens with shutdown the height electricity for changing and making can control pin and inputting by controlling it
It is flat.
Following present several physical circuits of delays time to control module and with first upper power supply module 1 and after power on power supply mould
The specific connection relationship of block 2.
After the light emitting diode anode series limiting resistor (R4) of optocoupler primary side, the output end of first upper power supply module is connected
Anode, light-emitting diodes tube cathode are grounded after passing through a switching device, power supply module in one end connection first of optical coupling secondary edges
Driving power, the control terminal of other end connection delay power control switch.
Here switching device is generally triode (Q2), one end resistance R5 of delay circuit and first upper power supply module
Output head anode connection, the base stage of other end connecting triode (Q2), capacitor one end is connected to the base stage of triode (Q2), another
The emitter of connecting triode (Q2) is held, the emitter of triode (Q2) is grounded, as shown in Figure 3.Wherein, resistance R5, capacitor and
The conduction voltage drop of triode determines delay time.Voltage-stabiliser tube D2, TVS pipe can certainly be set in the base stage of triode (Q2)
(D2) cathode connection capacitor, the base stage of the anode connecting triode (Q2) of TVS pipe (D2), as shown in Figure 2.At this point, resistance R5,
The component parameters of capacitor and voltage-stabiliser tube D2 determine delay time.
Delay power control switch is metal-oxide-semiconductor, and according to the control logic that can control pin is made, settable different connection is closed
System.If making to can control pin floating indicates that enabled output, low level expression are forbidden exporting, after the drain electrode connection of metal-oxide-semiconductor (Q1) on
The enabled control terminal of power supply module, source electrode ground connection, one end and the first driving of upper power supply module that grid connects optical coupling secondary edges
The anode of power supply, the other end ground connection of optical coupling secondary edges.The suitable conducting voltage of metal-oxide-semiconductor in order to obtain can be accessed in the grid of metal-oxide-semiconductor
The driving power anode and MOS of power supply module are formerly gone up in divider resistance R1, R2, R3 and voltage-stabiliser tube D1, resistance R2, R3 series connection
Between the grid for managing (Q1), R1 is connected between grid and ground, and the anode of voltage-stabiliser tube connects ground, and cathode is connected to resistance R2, R3
Between.
If making to can control the enabled output of pin floating expression, high level expression is forbidden exporting, the source electrode connection of metal-oxide-semiconductor (Q1)
The first anode of the driving power of upper power supply module, as shown in Figure 4.
If making to can control the enabled output of pin high level expression, low level expression is forbidden exporting, can be by the drain electrode of metal-oxide-semiconductor Q1
Connect the anode of the first driving power of upper power supply module.The enabled control terminal of upper power supply module, source electrode after the connection of source electrode pole
Also pass through a resistance R7 ground connection.The grid of metal-oxide-semiconductor Q1 passes through the emitter of divider resistance R2 connection optical coupling secondary edges triode, light
The collector of coupling pair side triode connects the anode of the first driving power of upper power supply module, as shown in Figure 5.
If making to can control the enabled output of pin low level expression, high level expression is forbidden exporting, can be by the drain electrode of metal-oxide-semiconductor Q1
Connect the anode of the first driving power of upper power supply module.The enabled control terminal of upper power supply module after source electrode connection, source electrode is also
It is grounded by a resistance R7, the collector of the grid connection optical coupling secondary edges triode of metal-oxide-semiconductor Q1 and first upper power supply module
The anode of driving power, the emitter ground connection of optical coupling secondary edges triode.The suitable conducting voltage of metal-oxide-semiconductor in order to obtain, can be in metal-oxide-semiconductor
Grid access divider resistance R1, the driving electricity of the first upper power supply module of R2, R3 and voltage-stabiliser tube D1, resistance R2, R3 series connection
Between source anode and the grid of metal-oxide-semiconductor (Q1), R1 is connected between grid and ground, and the anode of voltage-stabiliser tube connects ground, cathode connection
Between resistance R2, R3, as shown in Figure 6.
Now by taking power-on time sequence control circuit shown in Fig. 2 as an example, its working principle is illustrated.D1 device is voltage-stabiliser tube, logical
Voltage is obtained by R3 resistance when electric, the voltage is after R1, R2 electric resistance partial pressure, control Q1 conducting, upper power supply module 1 after making
CNT pin be low level, module is without output.At this moment first upper power supply module 2 has output voltage, is filled by R5 to capacitor C1
Electricity, when charging potential reaches the protection voltage of D2, D2 has reverse current, and Q2 is connected, i.e. optocoupler U1 conducting, light emitting diode will
The clamper current potential of D1 drags down, and keeps Q1 base potential low, and Q1 is disconnected, and the CNT pin of rear upper power supply module 1 is hanging, and module has defeated
Out.The component parameters of wherein R5, C1 and voltage-stabiliser tube D2 determine delay time.Such as: when R5 takes 100K, C1 to take 1uF, the D2 to be
4.3V voltage-stabiliser tube, then delay time is about 190ms.
When above-mentioned power-on time sequence control circuit to be applied in photovoltaic combining inverter, first upper power supply module is photovoltaic
For the power module for controller power supply in gird-connected inverter, upper power supply module is in photovoltaic combining inverter for being afterwards
The power module of power electronic power device power supply, first the driving power of upper power supply module and rear upper power supply module is straight
Flow bus.
Claims (8)
1. a kind of more power supply electrifying sequential control circuits, including first upper power supply module, afterwards upper power supply module and delays time to control
Module, the input terminal of the output end connection delays time to control module of the first upper power supply module, the delays time to control module it is defeated
The enabled control terminal of upper power supply module after outlet connection, the delays time to control module include delay circuit and delay power supply control
Switch, the enabled control terminal of upper power supply module after the delay power control switch connection, which is characterized in that the delay control
Molding block further includes optocoupler, for realizing the first output end of upper power supply module and first between the driving power of upper power supply module
Voltage isolation；The output end of the first upper power supply module connects the primary side of optocoupler, optical coupling secondary edges connection by delay circuit
The first driving power of upper power supply module and delay power-supplying circuit.
2. a kind of more power supply electrifying sequential control circuits according to claim 1, which is characterized in that the delay circuit packet
Resistance (R5), capacitor (C1), TVS pipe (D2) and triode (Q2) are included, described resistance one end (R5) connects first upper power supply module
Output end, the other end connects the cathode of TVS pipe (D2), and the anode of TVS pipe (D2) connects the base stage of triode (Q2), capacitor (C1)
One end connects the cathode of TVS pipe (D2), and other end connection first powers on power module outlet cathode, the collector of triode (Q2)
Connect the cathode of the light emitting diode of optocoupler primary side；It is negative that the emitter connection of triode (Q2) first powers on power module outlet
Pole.
3. a kind of more power supply electrifying sequential control circuits according to claim 2, which is characterized in that the delay is for automatically controlled
System switch is metal-oxide-semiconductor (Q1), the enabled control terminal of upper power supply module, metal-oxide-semiconductor (Q1) after the drain electrode connection of the metal-oxide-semiconductor (Q1)
Source electrode ground connection；The collector of the grid connection optical coupling secondary edges triode of metal-oxide-semiconductor (Q1), the emitter of the optical coupling secondary edges triode
The anode of the first driving power of upper power supply module is connected further through divider resistance；Upper power supply module enables control terminal after described
For when hanging, the enabled output of upper power supply module afterwards is then forbidden exporting when input signal is low level.
4. a kind of more power supply electrifying sequential control circuits according to claim 2, which is characterized in that the delay is for automatically controlled
System switch is metal-oxide-semiconductor (Q1), the enabled control terminal of upper power supply module, metal-oxide-semiconductor (Q1) after the drain electrode connection of the metal-oxide-semiconductor (Q1)
The first driving power of upper power supply module of source electrode connection anode；Three poles on the secondary side of the grid connection optocoupler of metal-oxide-semiconductor (Q1)
The collector of pipe, the emitter of the triode on the secondary side of optocoupler connect the anode of the first driving power of upper power supply module；It is described
Afterwards upper power supply module enable control terminal for it is hanging when, the enabled output of upper power supply module afterwards, when input signal is high level,
Then forbid exporting.
5. a kind of more power supply electrifying sequential control circuits according to claim 2, which is characterized in that the delay is for automatically controlled
System switch is metal-oxide-semiconductor (Q1), the enabled control terminal of upper power supply module, the source of metal-oxide-semiconductor (Q1) after the source electrode connection of metal-oxide-semiconductor (Q1)
Pole also passes through resistance (R7) ground connection, and the drain electrode of metal-oxide-semiconductor (Q1) connects the anode of the first driving power of upper power supply module；
The grid of metal-oxide-semiconductor (Q1) connects the emitter of optical coupling secondary edges triode, the current collection of the optical coupling secondary edges triode by divider resistance
Pole connects the anode of the first driving power of upper power supply module；Upper power supply module enables control terminal and is used to work as input letter after described
It number is high level, then the enabled output of upper power supply module afterwards is then forbidden exporting when input signal is low level.
6. a kind of more power supply electrifying sequential control circuits according to claim 2, which is characterized in that the delay is for automatically controlled
System switch is metal-oxide-semiconductor (Q1), the enabled control terminal of upper power supply module, the source of metal-oxide-semiconductor (Q1) after the source electrode connection of metal-oxide-semiconductor (Q1)
Pole also passes through resistance (R7) ground connection；The drain electrode of metal-oxide-semiconductor (Q1) connects the anode of the first driving power of upper power supply module；
The grid of metal-oxide-semiconductor (Q1) connects the collector of optical coupling secondary edges triode, the transmitting of the optical coupling secondary edges triode by divider resistance
Pole ground connection；Upper power supply module enables control terminal and is used to work as input signal to be low level after described, then upper power supply module makes afterwards
Can output, when input signal be high level, then forbid exporting.
7. a kind of more power supply electrifying sequential control circuits according to claim 3 or 4 or 6, which is characterized in that the MOS
It manages and is connected with voltage-stabiliser tube (D1) between the grid and ground of (Q1).
8. a kind of more power supply electrifying sequential control circuits according to claim 7, which is characterized in that described first to power on power supply
Module be in photovoltaic combining inverter for be controller power supply power module, upper power supply module is grid-connected after described
For the power module for power electronic power device power supply in inverter, the driving power of the first upper power supply module is straight
Flow bus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820925294.2U CN208257783U (en) | 2018-06-13 | 2018-06-13 | A kind of more power supply electrifying sequential control circuits |
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| CN201820925294.2U CN208257783U (en) | 2018-06-13 | 2018-06-13 | A kind of more power supply electrifying sequential control circuits |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975337A (en) * | 2019-04-15 | 2019-07-05 | 深圳市创艺龙电子科技有限公司 | A kind of novel security inspection equipment and intelligent checking system |
| CN110543127A (en) * | 2019-09-20 | 2019-12-06 | 上海市共进通信技术有限公司 | System for realizing intelligent adjustment of time sequence of multiple power supplies |
| CN111983957A (en) * | 2020-09-03 | 2020-11-24 | 中国兵器工业集团第二一四研究所苏州研发中心 | Combined power supply and power-on time sequence control method thereof |
| CN112134536A (en) * | 2020-09-07 | 2020-12-25 | 锐捷网络股份有限公司 | Circuit protection device and system |
| WO2023087840A1 (en) * | 2021-11-18 | 2023-05-25 | 北京卫星制造厂有限公司 | Level signal-type startup and shutdown control circuit |
-
2018
- 2018-06-13 CN CN201820925294.2U patent/CN208257783U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975337A (en) * | 2019-04-15 | 2019-07-05 | 深圳市创艺龙电子科技有限公司 | A kind of novel security inspection equipment and intelligent checking system |
| CN110543127A (en) * | 2019-09-20 | 2019-12-06 | 上海市共进通信技术有限公司 | System for realizing intelligent adjustment of time sequence of multiple power supplies |
| CN111983957A (en) * | 2020-09-03 | 2020-11-24 | 中国兵器工业集团第二一四研究所苏州研发中心 | Combined power supply and power-on time sequence control method thereof |
| CN112134536A (en) * | 2020-09-07 | 2020-12-25 | 锐捷网络股份有限公司 | Circuit protection device and system |
| WO2023087840A1 (en) * | 2021-11-18 | 2023-05-25 | 北京卫星制造厂有限公司 | Level signal-type startup and shutdown control circuit |
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