CN104953823B - Dc source pulse load adapter - Google Patents
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- CN104953823B CN104953823B CN201510411889.7A CN201510411889A CN104953823B CN 104953823 B CN104953823 B CN 104953823B CN 201510411889 A CN201510411889 A CN 201510411889A CN 104953823 B CN104953823 B CN 104953823B
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Abstract
The present invention relates to electronic technology field, a kind of dc source pulse load adapter is provided, to solve the problems, such as dc source and the heavy load starting existed when loading and being connected and heavily loaded open circuit problem, the adapter includes dc source, current sampling circuit, BUCK circuits, freewheeling circuit, current error amplifying circuit, voltage sampling circuit, voltage error amplifying circuit, monostable circuit, a reference source, PWM controller.Voltage jump when current impact when technical scheme proposed by the present invention solves the problems, such as dc source starting up is with load open circuit, goes for the pulsating load of any dc source.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of dc source pulse load adapter.
Background technology
From the nineties in last century so far, as power semiconductor switches reliability is improved constantly, PWM, SPWM, SVPWM etc.
Technology is emerged in large numbers, and Switching Power Supply has been widely used in load characteristic more stable place, for example low-power equipment, portable
Instrument, instrument etc..By the nonlinear characteristic that Switching Power Supply possesses in itself, the unstable place of load characteristic using when meeting
Cause various problems, such as the system in pressure problem, commutation dragging is moved back in the pulse in arc extinguishing problem, laser pump (ing) in magnetron sputtering
Dynamic problem, Switching Power Supply cascade problem, load changing problem etc., due to the presence of above mentioned problem, it is difficult to by Switching Power Supply application
In the unstable place of big-and-middle-sized power supply field even load feature.
Load changing problem includes heavy load starting problem and heavily loaded open circuit problem.
Heavy load starting problem refers to the suddenly change of power supply circuital current in start.To solve the problem, can adopt
Alleviate the influence of the dash current that produces to loading when starting shooting with resistance current limliting method, the major defect of the method is：
1st, converting charge, starts to charge up electric current greatly, and last electric current is small, starts the time long；
2nd, the constant-current charge to power capacitor cannot be realized；
3rd, cannot suppression circuit stray inductance be reflected to the voltage of power network；
4th, bulky current-limiting resistance booting moment loss is very big, and (such as, when 20 kilowatts of power supply booting moments, buffering is electric
Resistance loss is 1128 joules).Further, since Traditional DC electric motor starting is all by the way of armature voltage is stepped up, mesh
Preceding PWM mode can only control voltage, wait motor when reaching rated speed, armature voltage is increased to rated excitation voltage, from
And realize the purpose of controlled motor torque.The program has the following disadvantages：
1st, electric motor starting voltage is low, and electric current is small, and torque is also small, therefore band is carried and starts ability；
Curent change when the 2nd, occurring situations such as motor idle running, stall, reversion in armature is very big.
The suddenly change of circuital current when heavily loaded open circuit problem refers to being supported on open circuit, is divided into the online open circuit of load and bears
Line open circuit is carried off, the online open circuit of load refers to power supply and stops output.The situation of the offline open circuit of load is just more complicated, in load
During offline open circuit, electrical source voltage can still be present, and the magnetic potential in power circuit can open a way suddenly, and the phenomenon for now occurring is exactly capable
Essential Terms " current tail " in industry, when power source internal current tail, turn-off power loss increases, and switch stress increases (switch electricity
In source, voltage stress during switch OFF close to 2 times of busbar voltage, while with 10 times of damped oscillations of switching frequencies), lead
The device damage of load circuit is caused, the method and apparatus for not solving the problems, such as heavily loaded open circuit effectively at present.
The content of the invention
【The technical problem to be solved】
It is an object of the invention to provide a kind of dc source pulse load adapter, it is connected with load with solving dc source
When the heavy load starting problem that exists and heavily loaded open circuit problem.
【Technical scheme】
The present invention is achieved by the following technical solutions.
The present invention relates to a kind of dc source pulse load adapter, including dc source, also include：
BUCK circuits, it includes power switch, tap inductor, filter capacitor, the input and electric current of the power switch
One end connection of sample circuit, the head end of the tap inductor is connected with the output end of power switch, and the one of the filter capacitor
End is connected with the tail end of tap inductor, and the other end of the filter capacitor is connected with the negative pole of dc source；
Current sampling circuit, it is connected between the power switch of the positive pole of dc source and BUCK circuits, its output end
Inverting input with current error amplifying circuit is connected；
Current error amplifying circuit, its in-phase input end is connected with the first a reference source, and its output end is same with PWM controller
Phase input is connected；
Continuous current circuit, it includes controllable silicon, fly-wheel diode and the first tapped resistor string, and the first tapped resistor string is simultaneously
It is associated between tap inductor head end and tail end, it is the tap terminals of the first tapped resistor string and the tap terminals of tap inductor, controllable
The control pole connection of silicon, the anode of the controllable silicon, the negative electrode of controllable silicon, fly-wheel diode are serially connected；
PWM controller, its output end is connected with the control end of power switch；
First a reference source.
As one kind preferred embodiment, the controllable silicon, fly-wheel diode, the connected mode of tap inductor are：
The anode of the controllable silicon is connected with the negative pole of afterflow diode, the positive pole and tap inductor of the fly-wheel diode
Tail end connection, the negative electrode of the controllable silicon is connected with the head end of tap inductor；Or
The negative electrode of the controllable silicon is connected with the positive pole of afterflow diode, the negative pole and tap inductor of the fly-wheel diode
Tail end connection, the anode of the controllable silicon is connected with the head end of tap inductor.
As one kind preferred embodiment, also include：
Voltage sampling circuit, its output end for being connected in parallel on the dc source pulse load adapter, the voltage sample
The output end of circuit is connected with the in-phase input end of voltage error amplifying circuit；
Voltage error amplifying circuit, its inverting input is connected with the second a reference source；
Monostable circuit, its input is connected with the output end of voltage error amplifying circuit, its output end and PWM controller
In-phase input end connection；
Second a reference source.
As another preferred embodiment, current source on the basis of first a reference source.
Used as another preferred embodiment, the output end of the current error amplifying circuit is same with PWM controller
Diode is in series between phase input, between the output end of monostable circuit and the in-phase input end of PWM controller.
Used as another preferred embodiment, the voltage sampling circuit is the second tapped resistor string, and described second takes out
The tap terminals of head resistance string are connected as the output end of electric sample circuit with the in-phase input end of voltage error amplifying circuit.
As another preferred embodiment, voltage source on the basis of second a reference source.
Used as another preferred embodiment, the current sampling circuit includes current sensor, load resistance, bridge-type
Rectifier,
One end of the current sensor is connected with the positive pole of dc source, the power switch of its other end and BUCK circuits
Input connection；
The load resistance, bridge rectifier are connected in parallel on the two ends of current transformer, the output of the bridge rectifier
End is connected as the output end of current sampling circuit with the inverting input of current error amplifying circuit.
Used as another preferred embodiment, the current sensor is current transformer.
As another preferred embodiment, also including a RC absorbing circuits and the 2nd RC absorbing circuits, described
One RC absorbing circuits are connected in parallel between the input of power switch and output end, and the 2nd RC absorbing circuits are connected in parallel on tap electricity
Between the head end and tail end of sense.
Used as another preferred embodiment, a RC absorbing circuits and the 2nd RC absorbing circuits connect by series connection
Resistance and the electric capacity composition for connecing.
【Beneficial effect】
Technical scheme proposed by the present invention has the advantages that：
When the present invention not only solves dc source driving load, the current break phenomenon on the electric capacity of BUCK circuits, also
Solve the voltage jump phenomenon on the tap inductor of BUCK circuits.In a word, when the present invention solves dc source starting up
Current impact and load open circuit when voltage jump problem, go for the pulsating load of any dc source.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the dc source pulse load adapter that embodiments of the invention one are provided.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, to of the invention specific
Implementation method carries out clear, complete description, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments, nor limitation of the present invention.Based on embodiments of the invention, those of ordinary skill in the art are not paying
The every other embodiment obtained under the premise of creative work, belongs to protection scope of the present invention.
Embodiment one
Embodiment one provides a kind of dc source pulse load adapter.As shown in figure 1, it includes dc source 1, electric current
Sample circuit 2, BUCK circuits, freewheeling circuit 3, current error amplifying circuit 4, voltage sampling circuit 5, voltage error amplifying circuit
6th, monostable circuit 7, a reference source 8, a reference source 9, PWM controller 10.
Current sampling circuit 2 is connected between the input of the power switch of the positive pole of dc source and BUCK circuits, electricity
The output end for flowing sample circuit 2 is connected with the inverting input of current error amplifying circuit 4.Specifically, in the present embodiment, electric current
Sample circuit 2 includes current transformer, load resistance, bridge rectifier, one end of current transformer and the positive pole of dc source 1
Connection, its other end is connected with the input of the power switch Q1 of BUCK circuits；Load resistance, bridge rectifier are connected in parallel on electricity
The two ends of current transformer, the output end of bridge rectifier as current sampling circuit output end and current error amplifying circuit 4
Inverting input connection.
BUCK circuits include power switch Q1, tap inductor L, filter capacitor C, and input and the electric current of power switch Q1 are adopted
One end connection of sample circuit, the head end of tap inductor L is connected with the output end of power switch Q1, one end of filter capacitor C with take out
The tail end connection of head inductance L, the other end of filter capacitor C is connected with the negative pole of dc source 1.In the present embodiment, power switch
The two ends of Q1 are also parallel with RC absorbing circuits, and specifically, the input of power switch Q1 is connected with one end of RC absorbing circuits, work(
The output end of rate switch Q2 is connected with the other end of RC absorbing circuits.
The head end of tap inductor L is connected with the output end of the power switch Q1 of BUCK circuits, and its tail end is used as the present embodiment
The output end of the dc source pulse load adapter for being provided.
Freewheeling circuit 3 includes controllable silicon Q2, sustained diode, tapped resistor string R1 and RC absorbing circuit, controllable silicon Q2's
Negative electrode is connected with the head end of tap inductor L, and the anode of controllable silicon Q2 is connected with the negative pole of sustained diode, the control of controllable silicon Q2
Pole processed is connected with the tap terminals of tap inductor L.The positive pole of sustained diode is connected with the tail end of tap inductor L.Tapped resistor string
R1 is connected in parallel on tap inductor L two ends, and specifically, one end of tapped resistor string R1 is connected with the head end of tap inductor L, its other end
Tail end with tap inductor L is connected, and its tap terminals is connected with the tap terminals of tap inductor L, in the present embodiment, tapped resistor string R1
Formed by 4 resistant series, wherein two common ports of resistance of selection are used as tap terminals, the tap terminals of tapped resistor string R1 with take out
The tap terminals connection of head inductance L.RC absorbing circuits are connected in parallel between the head end of tap inductor L and tail end, it is necessary to illustrate, this implementation
RC absorbing circuits in example are made up of the resistance and electric capacity that are connected in series.
Current error amplifying circuit 4 is used to carry out the output signal of current sampling circuit 2 with the output signal of a reference source 8
Compare, it includes operational amplifier 41, RC filter circuits 42, one end of RC filter circuits 42 is anti-phase defeated with operational amplifier 41
Enter end connection, be connected with the output end of operational amplifier 41 after the other end one resistance 43 of series connection of RC filter circuits 42.Computing
The in-phase input end of amplifier 41 as current error amplifying circuit 4 in-phase input end, resistance 43 and RC filter circuits 42
Common port as current error amplifying circuit 4 output end, the in-phase input end of current error amplifying circuit 4 and a reference source 8
Output end is connected, and the same mutually defeated of PWM controller 10 is connected to after output end one diode of series connection of current error amplifying circuit 4
Enter end, specifically, the anode of the diode is connected with the output end of current error amplifying circuit 4, the negative electrode and PWM of the diode
The in-phase input end connection of controller 10.It is to be appreciated that RC filter circuits in the present embodiment are by the resistance and electricity that are connected in series
Hold composition.
PWM controller 10 is used to be worked according to the comparative result of current error amplifying circuit 4 or voltage error amplifying circuit 6
In off state or output PWM control waves, its output end is connected with the control end of power switch Q1.In the present embodiment,
A resistance is also in series between the output end of PWM controller 10 and the control end of power switch Q1.PWM controls in the present embodiment
Device processed can select the UC1842 of Texas Instruments.
Voltage sampling circuit 5 is used to sample the voltage at the filter capacitor C two ends of BUCK circuits, and it includes two letters
Number collection terminal and an output end for being used for output voltage values.Specifically, voltage sampling circuit 5 is tapped resistor string R2, this reality
Apply in example, tapped resistor string R2 is formed by 4 resistant series, wherein two common ports of resistance of selection are used as tap terminals, tap
The tap terminals of resistance string R2 are connected as the output end of voltage sampling circuit 5 with the in-phase input end of voltage error amplifying circuit 6.
Voltage error amplifying circuit 6 is used to enter the output voltage values of voltage sampling circuit 5 with the output voltage of a reference source 9
Row compares, and it includes operational amplifier 61, RC filter circuits 62, and one end of RC filter circuits 62 is anti-phase with operational amplifier 61
Input is connected, and is connected with the output end of operational amplifier 61 after the other end one resistance 63 of series connection of RC filter circuits 62.Fortune
The in-phase input end of amplifier 61 is calculated as the in-phase input end of voltage error amplifying circuit 6, resistance 63 and RC filter circuits 62
Common port as voltage error amplifying circuit 6 output end, the inverting input of voltage error amplifying circuit 6 and a reference source 9
Connection, the output end of voltage error amplifying circuit 6 is connected with the input of monostable circuit 7.
The input of monostable circuit 7 is connected with the output end of voltage error amplifying circuit 6, the output of monostable circuit 7
It is connected with the in-phase input end of PWM controller 10 after one diode of end series connection.Specifically, in the present embodiment, triggered using RS
Device realizes monostable circuit 7, and the R ends (i.e. set terminal) of rest-set flip-flop are used as the input of monostable circuit 7, the Q of rest-set flip-flop
End (i.e. positive output end) is used as the output end of monostable circuit 7.
In the dc source pulse load adapter provided using the present embodiment, output it end and be connected with load 11.
Specifically, load 11 can be motor.
The operation principle to the present embodiment is illustrated below.
Dc source pulse load adapter in the present embodiment can be operated in different patterns in different situations,
Specifically include constant current start-up mode and load open circuit freewheeling mode, wherein constant current start-up mode is：Start when dc source 1 or
When load 11 starts, constant current output is ensured；Load open circuit freewheeling mode is：Turn off when dc source 1, load 11 synchronous opens or
When loading 11 asynchronous open circuit, there is provided active afterflow, the stabilization output of step voltage after guarantee.
The operation principle of constant current start-up mode is illustrated below.
When dc source 1 starts, dc source 1 charges to the filter capacitor C of BUCK circuits, because filter capacitor C is first
Terminal voltage under the conditions of beginning is 0, and powered on moment dc source 1 is in short-circuit condition, and exponentially curve declines voltage, until filtering
Voltage on electric capacity C is equal with the voltage of dc source 1, and electric current can just decay to 0, now starting current error amplifying circuit 4, will
Starting current is limited to the electric current in the given operational envelope of equipment, due to depositing for input circuit inductor and stray inductance
Curent change curve there is also corresponding linear relationship.Specifically, when dc source 1 starts, its output current is from 0
Rated value is raised to, current change quantity is converted into magnitude of voltage and is sent to the anti-phase of current error amplifying circuit 4 by current sampling circuit 2
With the voltage of given a reference source 8 be compared the output voltage of current sampling circuit 2 by input, current error amplifying circuit 4,
As long as output voltage values of the output voltage of current sampling circuit 2 more than a reference source 8, the output of current error amplifying circuit 4 one is low
Level signal, PWM controller 10 is operated in off state, that is, stop output PWM drive pulse signals, now the work(of BUCK circuits
Rate switch Q1 open circuits, prime input current is reduced to 0 at once, and the electric current that the current transformer of current sampling circuit 2 is sensed is
0, the output voltage of current sampling circuit 2 is 0, and due to the reference voltage of current error amplifying circuit 4, (i.e. reference power supply 8 is defeated
Go out voltage) keep constant, now current error amplifying circuit 4 is output as high level, while PWM controller 10 can be exported
PWM control waves (but must could export PWM control waves when the next clock cycle), the work(of BUCK circuits
Rate switch Q1 is again turned on, and input DC power 1 starts to charge the filter capacitor C of BUCK circuits again, in charging process, filter
The voltage at ripple electric capacity C two ends gradually rises, and current changing rate is less and less, and the voltage signal of the input of current sampling circuit 2 is more next
Smaller, the output high level lasting time of current error amplifying circuit 4 is more and more long, with output current close to DC current,
The power switch Q1 of BUCK circuits will be automatic fully on, and the dc source pulse load adapter in the present embodiment will be into directly
Stream voltage stabilizing state.
After the dc source pulse load adapter that the embodiment of the present invention is provided is connected with load 11, dc source arteries and veins
The output current for rushing load adaptor can increase suddenly, and its input current also increases simultaneously, the output of current error amplifying circuit 4 one
Individual high level signal, forces PWM controller 10 to be operated in off state again, in order to ensure that it is straight that the embodiment of the present invention is provided
Flow the load capacity of power pulse load adaptor, it is possible to use voltage error amplifying circuit 6 carries out double control, specifically,
As the voltage at the filter capacitor C two ends of BUCK circuits is raised, the magnitude of voltage of the output signal of the output end of voltage sampling circuit 5
Gradually rise, the voltage more and more higher of the in-phase input end of voltage error amplifying circuit 6, in the voltage (benchmark of inverting input
The voltage in source 9) keep constant in the case of, the output set level of current error amplifying circuit 6, RS in monostable circuit 7 is touched
The output end for sending out device keeps high level, makes the Current Voltage Simultaneous Stabilization of the in-phase input end of PWM controller 10, because electric current is missed
The output of difference amplifying circuit 4 and voltage error amplifying circuit 6 is all in series with a diode, and this has been actually formed one easily
OR circuit, therefore, in current error amplifying circuit 4 and voltage error amplifying circuit 6, as long as the output for having a circuit is high
Level, PWM controller just exports high level untill dutycycle is 100%.
The operation principle of load open circuit freewheeling mode is illustrated below.
When loading for 11 moments and opening a way, freewheeling circuit 3 and tap inductor L-shaped into continuous current circuit disconnect, sustained diode
Moments cannot be disconnected in load 11 to tap inductor L afterflows, electric current from rated value abrupt transients to 0, due to the Q of tap inductor L
The influence of value, the filter capacitor C of BUCK circuits can be subject to high-voltage impact at double, especially, when load 11 is switching mode load
And frequent operation is in open circuit and during two states of path, the current wave of tap inductor L tail ends is zigzag, and output voltage occurs
Peak-inverse voltage at double.In the present embodiment, when 11 disconnection suddenly is loaded, load current mutation to 0, now when tap electricity
When peak-inverse voltage on sense L is more than input voltage, the tap terminals of tap inductor L can provide a trigger pulse make it is controllable
Silicon Q2 is turned on, so as to form continuous current circuit, until the voltage at tap inductor L two ends is equal, now controllable silicon with sustained diode
Q2 automatically shuts down；After load 11 is connected, dc source 1 starts to power load 11, and the head end voltage of tap inductor L is more than tail end
Voltage, controllable silicon Q2 equally automatically shuts down, and tap inductor L forms oad freewheels loop with load 11.Therefore, no matter dc source
1 starting switch open with cut-off, do not affect the step-down afterflow function of tap inductor L.
Tested using embodiment one below.
Experiment one, heavily loaded open-circuit test
Experimental condition：Dc source is that plasma surface nitrogenizes power supply, and plasma surface nitrogenizes power supply in error protection
Voltage, current relationship, wherein error protection includes：Short-circuit protection (inverter bridge open circuit), overvoltage protection (inverter bridge open circuit), mistake
Temperature protection (inverter bridge open circuit).
The heavily loaded open-circuit test result of table 1
Experiment two, heavy load starting experiment
Experimental condition：To load and be connected with the dc source pulse load adapter of the present embodiment offer, load as specified
Power 3kW, rated voltage 275V, the stepless time adjustment motor of 7200 revs/min of rotating speed monitor armature supply voltage change process.
Monitoring result is as shown in the table.
The heavy load starting result of the test of table 2
Be can be seen that in dc source constant current start-up course from above experimental data, the change extreme difference of electric current is small on electric capacity
In 1.5%, during output loading open circuit, voltage change extreme difference is less than 1% in tap inductor, so the embodiment of the present invention is not only
The current break phenomenon on the electric capacity of BUCK circuits is solved, the voltage jump also solved on the tap inductor of BUCK circuits shows
As.In a word, the electricity when current impact when embodiment of the present invention solves the starting up of dc source is with load open circuit
Pressure mutation problems, go for the pulsating load of any dc source.
Claims (10)
1. a kind of dc source pulse load adapter, including dc source, it is characterised in that also include：
BUCK circuits, it includes power switch, tap inductor, filter capacitor, the input and current sample of the power switch
One end connection of circuit, the head end of the tap inductor is connected with the output end of power switch, one end of the filter capacitor and
The tail end connection of tap inductor, the other end of the filter capacitor is connected with the negative pole of dc source；
Current sampling circuit, it is connected between the power switch of the positive pole of dc source and BUCK circuits, its output end with electricity
The inverting input connection of stream error amplifying circuit；
Current error amplifying circuit, its in-phase input end is connected with the first a reference source, and its output end is same mutually defeated with PWM controller
Enter end connection；
Freewheeling circuit, it includes controllable silicon, fly-wheel diode and the first tapped resistor string, and the first tapped resistor connection in series-parallel exists
Between the head end and tail end of tap inductor, the tap terminals of the first tapped resistor string and tap terminals, the controllable silicon of tap inductor
Control pole connection, the anode of the controllable silicon, the negative electrode of controllable silicon, fly-wheel diode are serially connected；
PWM controller, its output end is connected with the control end of the power switch of BUCK circuits；
First a reference source.
2. dc source pulse load adapter according to claim 1, it is characterised in that also include：
Voltage sampling circuit, its output end for being connected in parallel on the dc source pulse load adapter, the voltage sampling circuit
Output end be connected with the in-phase input end of voltage error amplifying circuit；
Voltage error amplifying circuit, its inverting input is connected with the second a reference source；
Monostable circuit, its input is connected with the output end of voltage error amplifying circuit, and its output end is same with PWM controller
Phase input is connected；
Second a reference source.
3. dc source pulse load adapter according to claim 1, it is characterised in that the controllable silicon, the pole of afterflow two
Pipe, the connected mode of tap inductor are：
The anode of the controllable silicon is connected with the negative pole of afterflow diode, the positive pole of the fly-wheel diode and the tail of tap inductor
End connection, the negative electrode of the controllable silicon is connected with the head end of tap inductor；Or
The negative electrode of the controllable silicon is connected with the positive pole of afterflow diode, the negative pole of the fly-wheel diode and the tail of tap inductor
End connection, the anode of the controllable silicon is connected with the head end of tap inductor.
4. dc source pulse load adapter according to claim 1, it is characterised in that first a reference source is base
Quasi- current source.
5. dc source pulse load adapter according to claim 2, it is characterised in that the current error amplifies electricity
Between the output end on road and the in-phase input end of PWM controller, the homophase input of the output end of monostable circuit and PWM controller
Diode is in series between end.
6. dc source pulse load adapter according to claim 2, it is characterised in that the voltage sampling circuit is
Second tapped resistor string, the tap terminals of the second tapped resistor string amplify as the output end of electric sample circuit with voltage error
The in-phase input end connection of circuit.
7. dc source pulse load adapter according to claim 2, it is characterised in that second a reference source is base
Reference voltage source.
8. dc source pulse load adapter according to claim 1, it is characterised in that the current sampling circuit bag
Current sensor, load resistance, bridge rectifier are included,
One end of the current sensor is connected with the positive pole of dc source, and its other end is defeated with the power switch of BUCK circuits
Enter end connection；
The load resistance, bridge rectifier are connected in parallel on the two ends of current transformer, and the output end of the bridge rectifier is made
For the output end of current sampling circuit is connected with the inverting input of current error amplifying circuit.
9. dc source pulse load adapter according to claim 8, it is characterised in that the current sensor is electricity
Current transformer.
10. according to any described dc source pulse load adapter in claim 1 to 9, it is characterised in that also including the
One RC absorbing circuits and the 2nd RC absorbing circuits, a RC absorbing circuits are connected in parallel on the input of the power switch of BUCK circuits
Between end and output end, the 2nd RC absorbing circuits are connected in parallel between the head end of the tap inductor of BUCK circuits and tail end.
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| CN108990214B (en) * | 2018-08-21 | 2023-10-13 | 北京模电半导体有限公司 | Device for driving constant current source load |
| CN110783982B (en) * | 2019-10-23 | 2021-04-13 | 上海空间电源研究所 | Pulse load power supply working mode analysis method and system for space navigation |
| CN111650450B (en) * | 2020-04-03 | 2022-07-15 | 杭州奥能电源设备有限公司 | Identification method based on direct current mutual string identification device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1709502A1 (en) * | 1989-05-05 | 1992-01-30 | Военный Инженерный Краснознаменный Институт Им.А.Ф.Можайского | Supply system of pulse energy accumulator |
| CN2290950Y (en) * | 1996-10-11 | 1998-09-09 | 叶茂 | Capacitance pulsive power source |
| CN101512867A (en) * | 2005-06-08 | 2009-08-19 | 爱尔康公司 | Method and system for providing current leveling capability |
| CN101562429A (en) * | 2008-04-17 | 2009-10-21 | Saab公司 | Method and device for feeding DC power to an amplifier module for a pulsed load |
| CN104716707A (en) * | 2015-02-09 | 2015-06-17 | 深圳航天金悦通科技有限公司 | Method for charging and supplying electricity to small load through portable power source, adapter and portable power source |
| CN204794688U (en) * | 2015-07-14 | 2015-11-18 | 成都铭庆电子科技有限公司 | DC power supply pulse load adapter |
-
2015
- 2015-07-14 CN CN201510411889.7A patent/CN104953823B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1709502A1 (en) * | 1989-05-05 | 1992-01-30 | Военный Инженерный Краснознаменный Институт Им.А.Ф.Можайского | Supply system of pulse energy accumulator |
| CN2290950Y (en) * | 1996-10-11 | 1998-09-09 | 叶茂 | Capacitance pulsive power source |
| CN101512867A (en) * | 2005-06-08 | 2009-08-19 | 爱尔康公司 | Method and system for providing current leveling capability |
| CN101562429A (en) * | 2008-04-17 | 2009-10-21 | Saab公司 | Method and device for feeding DC power to an amplifier module for a pulsed load |
| CN104716707A (en) * | 2015-02-09 | 2015-06-17 | 深圳航天金悦通科技有限公司 | Method for charging and supplying electricity to small load through portable power source, adapter and portable power source |
| CN204794688U (en) * | 2015-07-14 | 2015-11-18 | 成都铭庆电子科技有限公司 | DC power supply pulse load adapter |
Non-Patent Citations (1)
| Title |
|---|
| 基于脉冲负载的中小功率开关电源研究;廖建军等;《微电子学》;20100820;第40卷(第4期);第525-530页 * |
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