CN103616822A - High-voltage solid-state power distribution control system suitable for multi-source input - Google Patents
High-voltage solid-state power distribution control system suitable for multi-source input Download PDFInfo
- Publication number
- CN103616822A CN103616822A CN201310614037.9A CN201310614037A CN103616822A CN 103616822 A CN103616822 A CN 103616822A CN 201310614037 A CN201310614037 A CN 201310614037A CN 103616822 A CN103616822 A CN 103616822A
- Authority
- CN
- China
- Prior art keywords
- voltage
- solid
- power supply
- power distribution
- state
- 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.)
- Granted
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a high-voltage solid-state power distribution control system suitable for multi-source input. A low-voltage ground electrical power source, a low-voltage storage battery power source and a low-voltage load are all connected to a low-voltage bus through a low-voltage solid-state power distribution protection switch. A high-voltage ground electrical power source, a high-voltage storage battery power source and a high-voltage load are all connected to a high-voltage bus through a high-voltage solid-state power distribution protection switch. In a ground original state, a power source control and power distribution management module enables the low-voltage ground electrical power source and the high-voltage ground electrical power source to supply power to the low-voltage load and the high-voltage load respectively under the control of the solid-state power distribution protection switches. When a power switching instruction of a computer is received, the solid-state power distribution protection switch between the low-voltage storage battery power source and the low-voltage bus and the solid-state power distribution protection switch between the high-voltage storage battery power source and the high-voltage bus are connected first; after a certain period of delay, the solid-state power distribution protection switch between the low-voltage ground electrical power source and the low-voltage bus and the solid-state power distribution protection switch between the high-voltage ground electrical power source and the high-voltage bus are turned off; the power source control and power distribution management module also realizes on-off control over all the loads under the control of the solid-state power distribution protection switches.
Description
Technical field
The present invention relates to a kind of high-voltage solid-state power distribution control system that is applicable to multi-source input, belong to automation field.
Background technology
In the power supply-distribution system of some models, often run into the situation of the common distribution of many power supply inputs, as the spacecraft of certain model has ground power supply input and two kinds of power inputs of battery feed, power supply when two kinds of power supplys are different, supply voltage, power are all not identical.This just need to provide a kind of power distribution control system that is applicable to multi-source input.But current power distribution control system is only applicable to the input of single source conventionally, is not suitable for and has the spacecraft of multi-source input demand to use.
Summary of the invention
In order to address the above problem, the invention provides a kind of high-voltage solid-state power distribution control system that is applicable to multi-source input.
The total four-way power supply input of this system, is respectively low pressure ground power supply, low tension battery power supply, high-pressure ground power supply and high tension battery power supply;
Low pressure ground power supply, low tension battery power supply and low-voltage load are all connected to low-voltage bus bar through the solid-state power distribution protection switch of low pressure, and high-pressure ground power supply, high tension battery power supply and high-voltage load are all connected to high voltage bus through high-voltage solid-state power distribution protection switch; Power supply is controlled and is connected each solid-state power distribution protection switch and computing machine with distribution management module;
Under the original state of ground, power supply is controlled with distribution management module by the control of solid-state power distribution protection switch, make low pressure ground power supply and high-pressure ground power supply to load supplying separately, when receive computing machine turn electric instruction time, first by the solid-state power distribution protection switch connection between low tension battery power supply and high tension battery power supply and respective bus bars, after the time delay of certain hour, the solid-state power distribution protection switch between low pressure ground power supply and high-pressure ground power supply and respective bus bars cuts out; Power supply control, realizes the break-make of each load is controlled also by the control of solid-state power distribution protection switch with distribution management module.
Preferably, the integral body of described high-voltage solid-state power distribution protection switch and the solid-state power distribution protection switch of described low pressure forms identical, includes switching tube, sampling resistor R1, current acquisition module, overcurrent short-circuit detecting module, high drive module, triggers latch cicuit, softly opens soft shutoff module;
Switching tube is connected between power input end and power take-off after connecting with sampling resistor R1;
Current acquisition module, for by gathering the pressure drop on sampling resistor R1, obtains load current;
Overcurrent short-circuit detecting module, for described load current is carried out to overcurrent, short-circuit detecting, output fault-signal;
Trigger latch cicuit, to the OC pulse command of spacecraft is latched as, drive signal DRIVE to control high drive module; While latching, power-on reset signal, provisioning instruction, shutoff instruction, fault-signal are carried out to logic combination, with co-controlling high drive module;
High drive module, adopts boostrap circuit and charge pump collaborative work, realizes the continuous drive to switching tube;
Softly open soft shutoff module, realize the soft of switching tube opened and soft turn-off function;
Wherein, high drive module specifically comprises the boostrap circuit that drives chip I R2127 and bootstrap capacitor C2 to form by flash, and the charge pump consisting of 555 timers, diode V6, V7 and capacitor C 4;
For flash, drive chip I R2127, the IN termination of IR2127 drives signal DRIVE, and HO end is by the soft grid of opening soft shutoff module access switching tube; VCC termination is from the anode of+15V power supply and isolating diode V4, and the negative electrode of isolating diode V4 connects the first end of VB end and bootstrap capacitor C2; CS end and the interconnection of VS end, its tie point P connects the second end of bootstrap capacitor C2, the VCC of the RESET of the drain electrode of switching tube, 555 timers end, 555 timers holds and connects R_POWER point via capacitor C 5, and R_POWER point is by resistance R in parallel 10 and R11 ground connection;
For 555 timers, the VCC end of 555 timers connects R_POWER point by stabilivolt V8, GND termination R_POWER point, OUT holds via accessing the first end of capacitor C 2 after capacitor C 4 and diode V6, and diode V7 forward is connected between the VCC end and the anode of diode V6 of 555 timers; Capacitor C 1 and resistance R 9 are set for the output square wave frequency to 555 timers;
Softly open soft shutoff module and adopt capacitor C 3, diode V5, resistance R 7, resistance R 8 to realize; Resistance R 7 is connected between the HO end and switching tube grid of flash driving chip I R2127, and capacitor C 3 is connected between switching tube grid and drain electrode; After diode V5 connects with resistance R 8, the negative electrode of diode V5 connects the HO end of IR2127, and resistance R 8 connects switching tube grid.
Preferably, described triggering latch cicuit comprises two latch D1A and D1B;
For latch D1B, the diode access R end that power-on reset signal is connected via forward separately with shutoff instruction, provisioning instruction access CLK end, D termination power, Q holds output drive signal DRIVE;
For latch D1A, power-on reset signal and unlocking signal access R end, described fault-signal access CLK end, D termination power, the R end of the diode V9 access latch D1B that Q end connects via forward; The relation of described unlocking signal and provisioning instruction is: provisioning instruction is to generate through described unlocking signal time delay.
Preferably, current acquisition module in described high-voltage solid-state power distribution protection switch adopts high-tension current detection chip AD8212 to realize, concrete structure is: the V+ end of high-tension current detection chip AD8212 is connected sampling resistor R1 two ends with VSENSE end, COM end passes through resistance R 5 ground connection after connecting BLAS end, and IOUT holds external PNP pipe V3; The base stage of PNP pipe V3 connects ALPHA end, and emitter connects IOUT end, and collector passes through resistance R 6 Power Grouds, simultaneously collector output load current value.
Preferably; current acquisition module in the solid-state power distribution protection switch of described low pressure adopts high-tension current detection chip AD8212 to realize; concrete structure is: the V+ end of high-tension current detection chip AD8212 is connected sampling resistor R1 two ends with VSENSE end; COM end is connected with ALPHA end; BLAS holds ground connection; IOUT end is by resistance R 4 ground connection, and IOUT holds output load current value.
Preferably, the solid-state power distribution protection switch of described high-voltage solid-state power distribution protection switch and described low pressure further comprises load current state detection circuit and load voltage state detection circuit; Load current state detection circuit obtains load current value from current acquisition module, as telemetry, exports; Load voltage state detection circuit gathers load voltage value by divider resistance from load and exports.
Preferably, corresponding solid-state power distribution protection switch is all accessed on each road in four-way power supply after two diode-isolated in parallel.
Beneficial effect:
(1) the invention provides a kind of high-voltage solid-state power distribution control system that is applicable to multi-source input, this system can provide ground power supply input and two kinds of power inputs of battery feed for spacecraft, power supply is controlled with distribution management function integrated, realized that multi-source turns electric control, load adds the function that power-off is controlled.
(2) the power distribution protection switch of the whole employings of the present invention based on charge pump and bootstrap capacitor is as turning electric switch and load panel switches; propose a kind of new mode based on charge pump and bootstrap capacitor for MOSFET provides lasting gate-drive level, efficiently solve the problems such as the pass volume that N-channel MOS FET flash driving problems and power module of traditional each switch configuration cause is large, Heavy Weight.And, adopt power distribution protection construction of switch of the present invention, compare as switch with adopting electromagnetic relay, effectively avoided that electromagnetic relay electromagnetic property is poor, power consumption is large, on-off times is limited, there is no the problem of failure protection function.
(3) the present invention adopts high-side current detection technique; realize the conversion of electric current-voltage; its benefit is: accurate detection resistance is positioned at the anode of load; can provide overcurrent protection function to supply line and load simultaneously; when supply line or load generation over current fault; all can arrive this electric current by detecting resistance detection, thus protection supply line or load.
(4) the present invention has designed triggering latch cicuit, one of its advantage is to adopt the form that latchs, OC pulse command is latched as to the driving signal DRIVE of level form, to adapt to the input of OC instruction, improved the reliability of instruction, it two has been the Self-resetting functions that triggered latch circuit designs, when overcurrent or short trouble occur, switch is in the lock state, and only need again open and can reset, without designing reseting interface again.
(5) current acquisition module of the present invention has low pressure and two kinds of forms of high pressure, and wherein low-voltage module is applicable to 0-65V, and high-pressure modular is applicable to 65V-500V.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
Fig. 2 is DPS structural representation.
Fig. 3 (a) is the circuit diagram of the current acquisition module in high-voltage solid-state power distribution protection switch.
Fig. 3 (b) is the circuit diagram of the current acquisition module in the solid-state power distribution protection switch of low pressure.
Fig. 4 (a) is high drive module and the soft circuit diagram of opening soft shutoff module.
Fig. 4 (b)～Fig. 4 (d) moves towards schematic diagram for high drive blocks current.
Fig. 4 (e) is the startup oscillogram of high drive module.
Fig. 5 is for triggering the circuit diagram of latch cicuit.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
The invention provides a kind of high-voltage solid-state power distribution control system that is applicable to multi-source input, the total four-way power supply input of this system, is respectively low pressure ground power supply, low tension battery power supply, high-pressure ground power supply and high tension battery power supply.Low pressure ground power supply, low tension battery power supply and low-voltage load are all connected to low-voltage bus bar through the solid-state power distribution protection switch of low pressure, and high-pressure ground power supply, high tension battery power supply and high-voltage load are all connected to high voltage bus through high-voltage solid-state power distribution protection switch; Power supply is controlled and is connected each solid-state power distribution protection switch and computing machine with distribution management module.
Fig. 1 shows a kind of schematic diagram of practical application, comprises 4 tunnel loads in this application.As shown in Figure 1, the input of the four-way power supply of system is respectively 28V ground power supply, 28V battery feed, 160V ground power supply and 160V battery feed.Wherein 28V ground power supply, after two diode V41 in parallel and V42 isolation, through solid-state power distribution protection switch DPS11, is connected to bus-bar BUS1.28V battery feed, after two diode V43 in parallel and V44 isolation, through solid-state power distribution protection switch DPS12, is connected to bus-bar BUS1.BUS1 is 28V bus, from BUS1 after solid-state power distribution protection switch DPS13 and DPS14 control, respectively to two-way load R41 and R42 distribution.This is the connection of 28V low-pressure section, and the connection of 160V high-pressure section is also like this.
Whole working routine is: under the original state of ground; power supply is controlled with distribution management module by the control of solid-state power distribution protection switch; first make DPS11 connect; DPS12 disconnects; thereby powered by 28V ground power supply; DPS13, DPS14 connect subsequently, thereby power up to load R41 and R42, make load in running order.When receive computing machine turn electric instruction time, DPS12 is connected, after the time delay of certain hour, DPS11 is disconnected, at this moment, bus-bar BUS1 is by 28V storage battery power supply again, the effect of time delays is in turning electric process, guarantees the non-stop run of R41 and R42.Equally, the mode of operation of 160V ground power supply and 160V battery feed is also like this.Power supply control, realizes the break-make of each load is controlled also by the control of solid-state power distribution protection switch DPS13, DPS14, DPS23, DPS24 with distribution management module.
In high-voltage solid-state power distribution control system in Fig. 1, be provided with a plurality of solid-state power distribution protection switches (DPS, Distribution protect switch).In this high-voltage solid-state power distribution control system, solid-state open except needs have normally/turn-off function of power distribution protection switch, also need to design overcurrent protection, short-circuit protection, the functions such as state remote measurement, also claimed volume of switch is little, lightweight, for this reason, the present invention has abandoned the independent DC/DC insulating power supply of traditional employing module MOSFET suspending door and has driven power supply mode, propose a kind of new mode based on charge pump and bootstrap capacitor and provide lasting gate-drive level for MOSFET, efficiently solve the volume that N-channel MOS FET flash driving problems and power module of traditional each switch configuration cause large, the problems such as Heavy Weight.The present invention also adopts high-side current detection technique, realizes the conversion of electric current-voltage, and control interface partly adopts open-collector gate mode, has improved the reliability of instruction.When overcurrent or short trouble occur; switch is in the lock state; only need again open and can reset; without designing again reseting interface, there are two kinds of forms of low pressure and high pressure, wherein low-voltage module is 0-65V; high-pressure modular is 65V-500V; in the present invention, DPS11-DPS14 adopts the solid-state power distribution protection switch of low pressure, and DPS21-DPS24 adopts high-voltage solid-state power distribution protection switch.
Fig. 2 is the composition schematic diagram of the solid-state power distribution protection switch of the present invention.As shown in Figure 2, DPS comprises switching tube, sampling resistor R1, current acquisition module, overcurrent short-circuit detecting module, high drive module, triggers latch cicuit, soft soft shutoff module, load current state detection circuit and the load voltage state detection circuit opened.
Switching tube is connected between power input end and power take-off after connecting with sampling resistor R1.Switching tube adopts N-channel MOS FET, according to watt level, determines and is composed in parallel by a N-channel MOS FET or several N-channel MOSs FET.When DPS is used for DPS11-DPS12, power input termination 28V ground power supply or 28V battery feed, power stage termination BUS1; When DPS is used for DPS13-DPS14, power input termination BUS1, power stage termination load R41 and R42.The use-pattern of 160V ground power supply and 160V battery feed is also so, referring to Fig. 2.
Current acquisition module, adopts high-side current detection technique, and it,, by gathering the pressure drop on sampling resistor R1, obtains load current.The accurate detection of high-side current detection technique order resistance is positioned at the anode of load; can provide overcurrent protection function to supply line and load simultaneously; when supply line or load generation over current fault, all can arrive this electric current by detecting resistance detection, thus protection supply line or load.Low-side current detection technique is simple, and the accurate resistance that detects is positioned at load negative terminal, and when load generation over current fault, electric current, without detecting resistance, cannot be isolated fault.
Overcurrent short-circuit detecting module, for described load current is carried out to overcurrent, short-circuit detecting, output fault-signal.
Trigger latch cicuit, the OC pulse command of spacecraft is latched as and drives signal DRIVE to control high drive module; While latching, power-on reset signal, provisioning instruction, shutoff instruction, fault-signal are carried out to logic combination, co-controlling high drive module.
High drive module, adopts boostrap circuit and charge pump collaborative work, realizes the continuous drive to switching tube.
Softly open soft shutoff module, realize the soft of switching tube opened and soft turn-off function.
Load current state detection circuit, obtains load current value from current acquisition module, as telemetry, exports.
Load voltage state detection circuit, gathers load voltage value by divider resistance from load and exports.
Below in conjunction with accompanying drawing, the realization of each circuit module of the present invention is described in detail.
◆ current acquisition module
Adopt and detect resistance and the measurement of amplifier realization to load current, volume is little, cost is low, response is fast.Utilize amplifier that a bus is isolated, telemetering of current is output as analog output, output voltage and bus current relation in direct ratio.Adopt high-tension current detection chip AD8212 to realize the detection to load current herein, measuring accuracy is 1%, can detect voltage range to be >=7V, can be by changing the proportionate relationship of external resistance modification output voltage with detection electric current.According to the difference of distribution voltage, the use pattern of high-tension current detection chip has two kinds: low-voltage (distribution voltage 7V-65V) and high pressure mode (distribution voltage > 65V).
Low-voltage current acquisition principle is: by AD8212 outer meeting resistance R4, sample rate current is converted to Voltage-output, V
out=(V
sense* R4)/1000, V in formula
sensepressure drop for sampling resistor R1.
Specifically connect as shown in Fig. 3 (a), the V+ of high-tension current detection chip AD8212 end is connected sampling resistor R1 two ends with VSENSE end, and COM end is connected with ALPHA end, BLAS holds ground connection, IOUT end is by resistance R 4 ground connection, and IOUT holds the value of output load current, and this value adopts output voltage to represent.
High pressure mode current acquisition principle is: by giving the external PNP pipe of the output terminal V3 of AD8212, just can realize the collection of > 65V distribution electric current, output voltage V
out=KV
sense, in formula, K is enlargement factor, choosing of the resistance R 6 that K connects with the collector of PNP pipe is relevant, V
sensepressure drop for sampling resistor R1.The corresponding relation of K and R6 is:
Specifically connect as shown in Fig. 3 (b), the V+ end of high-tension current detection chip AD8212 is connected sampling resistor R1 two ends with VSENSE end, COM end passes through resistance R 5 ground connection after connecting BLAS end, IOUT holds external PNP pipe V3, the base stage of PNP pipe V3 connects the ALPHA end of AD8212, emitter connects IOUT end, and collector connects Power Groud by resistance R 6, simultaneously the value of collector output load current.
◆ high drive module
Traditional high drive module adopts SSPC, SSPC adopts the mode of isolation power supply, is equipped with a DC/DC module continuous drive is provided by Gei Mei road SSPC, can increase cost like this, and the dV/dt due to the coil coupling power switch of transformer, causes misleading of power MOS pipe.
The present invention adopts flash to drive chip I R2127(D2) and 555 timers (D3) combine, IR2127 and capacitor C 2 form boostrap circuit, 555 timers and peripheral electric capacity thereof, resistance form charge pump circuit, make charge pump and boostrap circuit collaborative work, the continuous drive of realization to switching tube, has solved switching tube and has driven the problem of floating ground.
Fig. 4 (a) shows the circuit diagram of high drive module.As shown in the figure, the annexation of this circuit is: drive the IN termination of chip I R2127 to drive signal DRIVE, HO end is by the soft grid of opening soft shutoff module access switching tube, and when driving signal DRIVE effective, IR2127 output drive signal is to switching tube.The VCC termination of IR2127 is from the anode of+15V power supply and isolating diode V4, and the negative electrode of isolating diode V4 connects the first end of VB end and bootstrap capacitor C2; CS end and the interconnection of VS end, its tie point P connects the second end of bootstrap capacitor C2, the VCC of the RESET of the drain electrode of switching tube, 555 timers end, 555 timers holds and connects R_POWER point via capacitor C 5, and R_POWER point is by resistance R in parallel 10 and R11 ground connection.
For 555 timers, the VCC end of 555 timers connects R_POWER point by stabilivolt V8, GND termination R_POWER point, OUT end connects the first end that accesses capacitor C 2 after capacitor C 4 and diode V6 successively, and diode V7 forward is connected between the VCC end and the anode of diode V6 of 555 timers; Capacitor C 1 and resistance R 9 are set for the output square wave frequency to 555 timers.In the present embodiment, by selecting C1 and R9 to make the square wave of 555 timer output 7.5kHz.
The principle of this high drive module is:
When switching tube V1 turn-offs ,+15V, V4, C2, VS pin, CS pin, sampling resistor R1 and load R form a path to ground, and as shown in Fig. 4 (b), bootstrap capacitor C2 charges by isolating diode V4 and resistance.The system that can guarantee is like this once powering on as C2 charging, thereby guarantees that when DRIVE is high level switching tube V1 is can moment open-minded.
When switching tube V1 conducting, VB end produces high pressure, and the Opposite direction connection of isolating diode V4 disconnected IR2127 pin VB and+connection of 15V power supply, thereby blocking-up pours into high pressure to+15V, and voltage above bootstrap capacitor C2 starts to decline, need charge pump work to be maintained.Referring to Fig. 4 (c), conducting due to switching tube V1, power input end (bus in Fig. 4 b), switching tube V1, CS pin, VS pin form a path to 555 timers, as shown in Fig. 4 (d), power input end, switching tube V1, CS pin, VS pin, C5 are in parallel to R10//R11(// expression) form another path, capacitor C 5 between 555 timer power supply VCC and ground GND is charged by parallel resistance R10, R11, by the pressure stabilization function of V8, produced be referred to IR2127 pin VS-15V.This pressure drop makes generation+15V pressure reduction between the VCC of 555 timers and GND, thereby is 555 timers power supplies.The now pin OUT of 555 timers output 7.5kHz square wave, this square wave with reference to the voltage of VS end is+15V, and charges to bootstrap capacitor C2 by C4, V6.Diode V7 is in order to guarantee current direction C2.
Fig. 4 (e) has shown the circuit waveform while starting, and the output voltage of charge pump, along with supply voltage (being C5 charging process) increases and raises, finally can remain stable, thereby maintain the voltage of bootstrap capacitor C2.The output square wave frequency of charge pump can not be too high or too low, too high meeting causes high frequency interference to increase, too low meeting causes on the under-voltage locking level that remains on IR2127 that the voltage of bootstrap capacitor can not be stable, output drive signal can not be maintained, so 7.5kHz is a suitable value.
While using IR2127, should note:
(1) in order to prevent the anti-15V of the pouring into power supply of voltage of charge pump, the diode between VCC and VB should be Ultrafast recovery diode, oppositely the withstand voltage busbar voltage that is greater than.
(2) capacitor C between VB and VS 2 should be high stability, low series inductance, electric capacity that high frequency characteristics is good, generally selects a class Leaded Ceramic Disc Capacitor, electric capacity be 0.1-1uF all can, this electric capacity is along with the frequency of operation of IR2127 improves and declines.
(3) utilize the directly less MOSFET of drive current capacity of IR2127, but current capacity be greater than to MOSFET more than 100A, with IR2127, directly drive just improper, should consider to output pulse carry out power amplifier.
(4) the 7.5kHz square wave that is charge pump due to drive level maintains, and therefore the lead-in wire from IR2127 to driven MOSFET should be short as far as possible, reduces Conduction Interference.Its round wire length should be limited in 200mm, and should use as far as possible twisted wire or coaxial cable shield line, preferably driven MOSFET and IR2127 is loaded in same printed board and is connected with track.
◆ softly open soft shutoff module
Still referring to Fig. 4 (a), softly open soft shutoff module and adopt capacitor C 3, diode V5, resistance R 7, resistance R 8 to realize.Resistance R 7 is connected between the HO end and switching tube V1 grid of flash driving chip I R2127, and capacitor C 3 is connected between switching tube grid and drain electrode, and after diode V5 connects with resistance R 8, the negative electrode of diode V5 connects the HO end of IR2127, and resistance R 8 connects switching tube V1 grid.
◆ overcurrent short-circuit detecting module
Mainly two parts, consist of, a part completes over current fault and detects, and judges whether to protect; When surpassing 1.4 times of rated current, load current starts protection; electric current does not return to rated current and following within a certain period of time; take safeguard measure; protection action realizes by producing fault-signal; fault-signal is applied to and triggers in latch cicuit; the DRIVE signal that makes to trigger latch cicuit output is inactive level, thereby load switch is disconnected.Another part is short-circuit protection circuit, when load current surpasses 8 times of rated current, also produces fault-signal, thereby drags down fast MOSFET grid-source voltage Ugs, switch-off power switch.
◆ trigger latch cicuit
IR2127 need to use level order-driven, cannot mate with the OC pulse command of spacecraft.The present invention adopts latch cicuit, OC instruction is latched into DRIVE signal and control driving chip.While latching, this circuit also carries out logic combination by power-on reset signal, provisioning instruction, shutoff instruction, fault-signal, with the on off state of co-controlling DPS.
As shown in Figure 5, trigger latch cicuit and comprise two latch D1A and D1B, some electric capacity and resistance.
Turn-off instruction TC_OFF via the R end of the diode V10 access D1B of forward connection, when shutoff instruction TC_OFF is effective, D1B resets, and Q holds output low level, on-off switching tube.
The CLK end of provisioning instruction TC_IN access D1B, the D termination power of D1B, when provisioning instruction is effective, Q end output high level, opens switching tube.
For latch D1A, power-on reset signal further accesses the R end of D1A, and D1A also resets when system powers on simultaneously.
The CLK end of fault-signal IR_2127_ERR access D1A, the D termination power of D1A; The R end of the diode V9 access latch D1B that the Q end of D1A connects via forward.When fault-signal IR_2127_ERR is effective, the Q of D1A end output high level, this high level acts on the reset R end of D1B, thus the DRIVE signal that makes D1B Q end produce is low level, with on-off switching tube, thereby has realized overcurrent, current cutting protection.
The R end of unlocking signal TC_IN1 access D1A, the relation of unlocking signal TC_IN1 and provisioning instruction is: provisioning instruction is described unlocking signal through the delay generation of a RC circuit, thereby unlocking signal is arrived early than provisioning instruction.Unlocking signal is for before opening signal arrival, the fault-signal arranging before removing.Referring to Fig. 5, when unlocking signal TC_IN1 is effective, the Q of D1A end produces low level.If there had been fault-signal before, when fault restoration is opened again, just can the impact of fault-signal be removed by the generation of TC_IN1, thereby clear away the obstacles for the signal TC_IN that opens of follow-up arrival.
◆ state detection circuit:
Mainly realize the detection to DPS state, comprise load current state detection circuit and load voltage state detection circuit.As shown in Figure 2, the potential-divider network consisting of resistance R 2 and R3 is set between the power take-off of DPS and ground, utilizes dividing potential drop to gather the output of load voltage value.Current status testing circuit can adopt voltage follower to realize, and it obtains load current value from current acquisition module, as telemetry, exports.In addition, as shown in Figure 2, overcurrent short-circuit detecting module can also be exported fault-signal as quantity of state.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a high-voltage solid-state power distribution control system that is applicable to multi-source input, is characterized in that, the total four-way power supply input of this system, is respectively low pressure ground power supply, low tension battery power supply, high-pressure ground power supply and high tension battery power supply;
Low pressure ground power supply, low tension battery power supply and low-voltage load are all connected to low-voltage bus bar through the solid-state power distribution protection switch of low pressure, and high-pressure ground power supply, high tension battery power supply and high-voltage load are all connected to high voltage bus through high-voltage solid-state power distribution protection switch; Power supply is controlled and is connected each solid-state power distribution protection switch and computing machine with distribution management module;
Under the original state of ground, power supply is controlled with distribution management module by the control of solid-state power distribution protection switch, make low pressure ground power supply and high-pressure ground power supply to load supplying separately, when receive computing machine turn electric instruction time, first by the solid-state power distribution protection switch connection between low tension battery power supply and high tension battery power supply and respective bus bars, after the time delay of certain hour, the solid-state power distribution protection switch between low pressure ground power supply and high-pressure ground power supply and respective bus bars cuts out; Power supply control, realizes the break-make of each load is controlled also by the control of solid-state power distribution protection switch with distribution management module.
2. the system as claimed in claim 1, it is characterized in that, the integral body of described high-voltage solid-state power distribution protection switch and the solid-state power distribution protection switch of described low pressure forms identical, includes switching tube, sampling resistor R1, current acquisition module, overcurrent short-circuit detecting module, high drive module, triggers latch cicuit, softly opens soft shutoff module;
Switching tube is connected between power input end and power take-off after connecting with sampling resistor R1;
Current acquisition module, for by gathering the pressure drop on sampling resistor R1, obtains load current;
Overcurrent short-circuit detecting module, for described load current is carried out to overcurrent, short-circuit detecting, output fault-signal;
Trigger latch cicuit, to the OC pulse command of spacecraft is latched as, drive signal DRIVE to control high drive module; While latching, power-on reset signal, provisioning instruction, shutoff instruction, fault-signal are carried out to logic combination, with co-controlling high drive module;
High drive module, adopts boostrap circuit and charge pump collaborative work, realizes the continuous drive to switching tube;
Softly open soft shutoff module, realize the soft of switching tube opened and soft turn-off function;
Wherein, high drive module specifically comprises the boostrap circuit that drives chip I R2127 and bootstrap capacitor C2 to form by flash, and the charge pump consisting of 555 timers, diode V6, V7 and capacitor C 4;
For flash, drive chip I R2127, the IN termination of IR2127 drives signal DRIVE, and HO end is by the soft grid of opening soft shutoff module access switching tube; VCC termination is from the anode of+15V power supply and isolating diode V4, and the negative electrode of isolating diode V4 connects the first end of VB end and bootstrap capacitor C2; CS end and the interconnection of VS end, its tie point P connects the second end of bootstrap capacitor C2, the VCC of the RESET of the drain electrode of switching tube, 555 timers end, 555 timers holds and connects R_POWER point via capacitor C 5, and R_POWER point is by resistance R in parallel 10 and R11 ground connection;
For 555 timers, the VCC end of 555 timers connects R_POWER point by stabilivolt V8, GND termination R_POWER point, OUT holds via accessing the first end of capacitor C 2 after capacitor C 4 and diode V6, and diode V7 forward is connected between the VCC end and the anode of diode V6 of 555 timers; Capacitor C 1 and resistance R 9 are set for the output square wave frequency to 555 timers;
Softly open soft shutoff module and adopt capacitor C 3, diode V5, resistance R 7, resistance R 8 to realize; Resistance R 7 is connected between the HO end and switching tube grid of flash driving chip I R2127, and capacitor C 3 is connected between switching tube grid and drain electrode; After diode V5 connects with resistance R 8, the negative electrode of diode V5 connects the HO end of IR2127, and resistance R 8 connects switching tube grid.
3. the system as claimed in claim 1, is characterized in that, described triggering latch cicuit comprises two latch D1A and D1B;
For latch D1B, the diode access R end that power-on reset signal is connected via forward separately with shutoff instruction, provisioning instruction access CLK end, D termination power, Q holds output drive signal DRIVE;
For latch D1A, power-on reset signal and unlocking signal access R end, described fault-signal access CLK end, D termination power, the R end of the diode V9 access latch D1B that Q end connects via forward; The relation of described unlocking signal and provisioning instruction is: provisioning instruction is to generate through described unlocking signal time delay.
4. system as claimed in claim 2 or claim 3, is characterized in that, the current acquisition module in described high-voltage solid-state power distribution protection switch adopts high-tension current detection chip AD8212 to realize, and concrete structure is:
The V+ end of high-tension current detection chip AD8212 is connected sampling resistor R1 two ends with VSENSE end, and after COM end connection BLAS end, by resistance R 5 ground connection, IOUT holds external PNP pipe V3; The base stage of PNP pipe V3 connects ALPHA end, and emitter connects IOUT end, and collector passes through resistance R 6 Power Grouds, simultaneously collector output load current value.
5. system as claimed in claim 2 or claim 3, is characterized in that, the current acquisition module in the solid-state power distribution protection switch of described low pressure adopts high-tension current detection chip AD8212 to realize, and concrete structure is:
The V+ end of high-tension current detection chip AD8212 is connected sampling resistor R1 two ends with VSENSE end, and COM end is connected with ALPHA end, and BLAS holds ground connection, and IOUT holds by resistance R 4 ground connection, IOUT end output load current value.
6. system as claimed in claim 2 or claim 3, is characterized in that, the solid-state power distribution protection switch of described high-voltage solid-state power distribution protection switch and described low pressure further comprises load current state detection circuit and load voltage state detection circuit;
Load current state detection circuit obtains load current value from current acquisition module, as telemetry, exports;
Load voltage state detection circuit gathers load voltage value by divider resistance from load and exports.
7. the system as described in claim 1,2 or 3, is characterized in that, corresponding solid-state power distribution protection switch is all accessed on each road in four-way power supply after two diode-isolated in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614037.9A CN103616822B (en) | 2013-11-27 | 2013-11-27 | Be applicable to the high-voltage solid-state power distribution control system of multi-source input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614037.9A CN103616822B (en) | 2013-11-27 | 2013-11-27 | Be applicable to the high-voltage solid-state power distribution control system of multi-source input |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103616822A true CN103616822A (en) | 2014-03-05 |
| CN103616822B CN103616822B (en) | 2016-05-04 |
Family
ID=50167526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310614037.9A Active CN103616822B (en) | 2013-11-27 | 2013-11-27 | Be applicable to the high-voltage solid-state power distribution control system of multi-source input |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103616822B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267757A (en) * | 2014-09-11 | 2015-01-07 | 上海卫星工程研究所 | High-altitude satellite heater electronic control system and method |
| CN105403792A (en) * | 2015-12-10 | 2016-03-16 | 中国航空工业集团公司西安飞机设计研究所 | Solid state power distribution device reset function testing system and testing method |
| CN108258736A (en) * | 2018-01-31 | 2018-07-06 | 北京航天自动控制研究所 | A kind of digital distributor for carrier rocket |
| CN110212259A (en) * | 2019-06-04 | 2019-09-06 | 深圳市雄韬电源科技股份有限公司 | Power-supplying circuit, fork truck power supply circuit and fork truck |
| CN110336252A (en) * | 2019-08-16 | 2019-10-15 | 深圳市智微智能软件开发有限公司 | Space solid state distribution protects circuit, method and power supply-distribution system |
| CN110797965A (en) * | 2019-10-11 | 2020-02-14 | 中国直升机设计研究所 | Electricity conversion structure and method |
| CN111478418A (en) * | 2019-12-30 | 2020-07-31 | 湖北航天飞行器研究所 | Power conversion and power failure control system and method |
| CN112491406A (en) * | 2020-11-26 | 2021-03-12 | 核工业西南物理研究院 | High-voltage solid-state modulator with voltage regulation capability |
| CN113991782A (en) * | 2021-10-28 | 2022-01-28 | 北京卫星制造厂有限公司 | Power supply system |
| CN117477956A (en) * | 2023-12-28 | 2024-01-30 | 华北理工大学 | Airborne digital high-voltage direct-current power distribution system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2695941B2 (en) * | 1989-09-22 | 1998-01-14 | 株式会社東芝 | Uninterruptible power system |
| CN2309660Y (en) * | 1997-03-03 | 1999-03-03 | 台达电子工业股份有限公司 | Uninterruptible power supply device for motors |
| CN200994083Y (en) * | 2006-12-26 | 2007-12-19 | 叶明祥 | Distribution device for electric power storage equipment |
| CN201789335U (en) * | 2010-09-09 | 2011-04-06 | 西安华强航天电子有限责任公司 | Unconventional high-power uninterruptable power source |
| CN102468682A (en) * | 2010-11-05 | 2012-05-23 | 湖南丰日电源电气股份有限公司 | High voltage direct current power supply system for both alternating current purpose and direct current purpose |
| CN202474994U (en) * | 2012-03-23 | 2012-10-03 | 北京北交科仪科技有限公司 | Solar and mains supply complementary power supply controller |
| CN202586481U (en) * | 2012-05-07 | 2012-12-05 | 西北工业大学 | Micro electrical network intelligent balanced charging and power supply system |
| CN203056678U (en) * | 2012-11-30 | 2013-07-10 | 西安晶捷电子技术有限公司 | Commercial power and storage battery power supply switching circuit |
-
2013
- 2013-11-27 CN CN201310614037.9A patent/CN103616822B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2695941B2 (en) * | 1989-09-22 | 1998-01-14 | 株式会社東芝 | Uninterruptible power system |
| CN2309660Y (en) * | 1997-03-03 | 1999-03-03 | 台达电子工业股份有限公司 | Uninterruptible power supply device for motors |
| CN200994083Y (en) * | 2006-12-26 | 2007-12-19 | 叶明祥 | Distribution device for electric power storage equipment |
| CN201789335U (en) * | 2010-09-09 | 2011-04-06 | 西安华强航天电子有限责任公司 | Unconventional high-power uninterruptable power source |
| CN102468682A (en) * | 2010-11-05 | 2012-05-23 | 湖南丰日电源电气股份有限公司 | High voltage direct current power supply system for both alternating current purpose and direct current purpose |
| CN202474994U (en) * | 2012-03-23 | 2012-10-03 | 北京北交科仪科技有限公司 | Solar and mains supply complementary power supply controller |
| CN202586481U (en) * | 2012-05-07 | 2012-12-05 | 西北工业大学 | Micro electrical network intelligent balanced charging and power supply system |
| CN203056678U (en) * | 2012-11-30 | 2013-07-10 | 西安晶捷电子技术有限公司 | Commercial power and storage battery power supply switching circuit |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267757A (en) * | 2014-09-11 | 2015-01-07 | 上海卫星工程研究所 | High-altitude satellite heater electronic control system and method |
| CN105403792A (en) * | 2015-12-10 | 2016-03-16 | 中国航空工业集团公司西安飞机设计研究所 | Solid state power distribution device reset function testing system and testing method |
| CN108258736A (en) * | 2018-01-31 | 2018-07-06 | 北京航天自动控制研究所 | A kind of digital distributor for carrier rocket |
| CN110212259A (en) * | 2019-06-04 | 2019-09-06 | 深圳市雄韬电源科技股份有限公司 | Power-supplying circuit, fork truck power supply circuit and fork truck |
| CN110212259B (en) * | 2019-06-04 | 2021-03-02 | 深圳市雄韬电源科技股份有限公司 | Power supply control circuit, forklift power supply circuit and forklift |
| CN110336252A (en) * | 2019-08-16 | 2019-10-15 | 深圳市智微智能软件开发有限公司 | Space solid state distribution protects circuit, method and power supply-distribution system |
| CN110797965B (en) * | 2019-10-11 | 2023-04-28 | 中国直升机设计研究所 | Electricity conversion structure and method |
| CN110797965A (en) * | 2019-10-11 | 2020-02-14 | 中国直升机设计研究所 | Electricity conversion structure and method |
| CN111478418A (en) * | 2019-12-30 | 2020-07-31 | 湖北航天飞行器研究所 | Power conversion and power failure control system and method |
| CN111478418B (en) * | 2019-12-30 | 2022-01-21 | 湖北航天飞行器研究所 | Power conversion and power failure control system and method |
| CN112491406A (en) * | 2020-11-26 | 2021-03-12 | 核工业西南物理研究院 | High-voltage solid-state modulator with voltage regulation capability |
| CN112491406B (en) * | 2020-11-26 | 2023-07-25 | 核工业西南物理研究院 | High-voltage solid-state modulator with voltage regulation capability |
| CN113991782A (en) * | 2021-10-28 | 2022-01-28 | 北京卫星制造厂有限公司 | Power supply system |
| CN113991782B (en) * | 2021-10-28 | 2023-12-19 | 北京卫星制造厂有限公司 | Satellite-borne quasi-two-stage pulse load power supply circuit |
| CN117477956A (en) * | 2023-12-28 | 2024-01-30 | 华北理工大学 | Airborne digital high-voltage direct-current power distribution system |
| CN117477956B (en) * | 2023-12-28 | 2024-03-26 | 华北理工大学 | Airborne digital high-voltage direct-current power distribution system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103616822B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103616822B (en) | Be applicable to the high-voltage solid-state power distribution control system of multi-source input | |
| CN101572485B (en) | Intelligent driving control method and device for secondary synchronous rectifier | |
| CN104426344B (en) | Buffer circuit and the way to play for time for buffer circuit | |
| CN105337483A (en) | Device for preventing current from flowing backwards | |
| CN106532631B (en) | A kind of space flight is booted with N MOS flash and drives current-limiting protection circuit | |
| CN206272335U (en) | A kind of intelligent uninterrupted power source | |
| CN207732497U (en) | A kind of robot control system power down preservation circuit | |
| CN103066690A (en) | Low-power-consumption standby circuit | |
| CN110504659A (en) | IGBT drives short-circuit protection detection circuit | |
| CN105305798B (en) | Current-limiting protection circuit and current limiting protecting method applied to buck converter | |
| CN109742725A (en) | Parallel connection type intelligent DC protective switch | |
| CN101944856A (en) | Control circuit of switching power supply for primary side control | |
| CN206790346U (en) | A kind of dc source for possessing multiple-protection | |
| CN106057566A (en) | Novel compound switch for high-voltage capacitor switching and working method of novel compound switch | |
| CN203984377U (en) | One is with soft start and turn-off switching circuit fast | |
| CN205753623U (en) | A kind of power supply switch circuit | |
| CN208284997U (en) | A kind of IGBT fault secure circuit for Switching Power Supply | |
| CN201917605U (en) | High-voltage alive passive indicator | |
| CN208386141U (en) | output protecting device and terminal controller | |
| CN207926553U (en) | A kind of multifunction switch controller | |
| CN103326323A (en) | Switching power supply protective circuit and method | |
| CN105182833A (en) | Double-power-supply power supply and power-off sequential control device and method | |
| CN205015670U (en) | Dual power supply and outage time schedule control device | |
| CN209526556U (en) | Power supply switch circuit | |
| CN109347315B (en) | Power-on buffer circuit of power electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |