CN104868550B - The cell activation control circuit of uninterrupted dc source - Google Patents
The cell activation control circuit of uninterrupted dc source Download PDFInfo
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- CN104868550B CN104868550B CN201510282753.0A CN201510282753A CN104868550B CN 104868550 B CN104868550 B CN 104868550B CN 201510282753 A CN201510282753 A CN 201510282753A CN 104868550 B CN104868550 B CN 104868550B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
A kind of cell activation the invention discloses uninterrupted dc source controls circuit, uninterrupted dc source includes battery management circuit, PWM controls drive circuit, DC DC converters and battery, cell activation control circuit includes the activation act circuit being sequentially connected, activation signals detects circuit and activation signals isolation circuit, and for detecting circuit for activation signals, activation signals isolation circuit and battery management circuit provide the reference voltage circuit of reference voltage, the compensating end of PWM control drive circuits connects with the output end of activation signals isolation circuit, the comparison voltage input of battery management circuit connects with the output end of activation signals detection circuit.Cost of implementation of the present invention is low, using easy to operate, can effectively extend the service life of battery, improves the service efficiency of battery, practical, is easy to promote the use of.
Description
Technical field
The invention belongs to power technique fields, and in particular to a kind of cell activation control circuit of uninterrupted dc source.
Background technology
With the fast development of the technologies such as power Transmission, communication, in order to prevent power failure, voltage pulsation, noise jamming from being made
Into the aspect such as device damage, data loss, operating interruptions problem, the application of uninterrupted dc source seems and becomes more and more important.
It is one of key equipment of guarantee system worked well and battery is used as the energy storage device of uninterrupted dc source, its effect
It is, when the scope that civil power or city's electricity quality are allowed beyond electrical equipment is lost, electric energy to be provided to load.But battery is again
A kind of expensive running stores.Therefore, how battery reasonably to be used and manages to extend its service life, one
The problem that Zhi Shi UPS manufacturers and each use unit are paid close attention to for many years.
It is reported that, current battery is widely used in the fields such as electric power, communication, instrument and meter, ups power.It is well known that
The floating charge of battery has considerable influence to the life-span of battery, if battery is chronically at floating charge state, easily
Electrode is caused to vulcanize, mainly the vulcanization failure of negative electrode active material, hydraulic performance decline increases the internal resistance of cell, and battery capacity declines
Subtract, particularly when battery float charge voltage exceed certain value when, grid corrosion phenomenon can be further exacerbated by, the oxygen in battery and
Hydrogen is produced compared with hyperbar, is discharged by air valve, so as to cause battery dehydration, positive pole corrosion then to mean battery dehydration, enter
The aggravation battery deterioration of one step, the lost of life.If float charge voltage exceedes certain amplitude, the floating current of increase can produce more
Surplus gas, oxygen is subject to resistance negative pole is compound, so as to weaken the circulating function of oxygen, seriously reduce the longevity
Life.Solution to the problems described above, can carry out accumulator capacity test, according to test by the calculating manually to accumulator capacity
Result determines whether accumulator capacity meets requirement, but this method is excessively complicated, higher to personnel requirement, and result of calculation
Often there is relatively large deviation.At present, it is chronically at floating charge state for battery and causes asking for service life reduction and capacity attenuation
Topic, use to battery that regularly charging and discharging, to maintain the activity of negative electrode active material, prevents electrode vulcanization and electric power storage more
Pond deteriorates and causes the life of storage battery to shorten, that is, storage battery activation.Started by the activation to battery, be conducive to battery
The recovery of capacity keeps, and greatly prolongs the service life of battery, and safe and reliable, and cost performance is high, adapts to environment extensive.In recent years
Activating technology both domestic and external, mainly there is following several：(1) large current charge method.When big lead sulfate crystal grain in charging
When producing impedance, it is electrolysed and is activated using high current energy, prevent plate vulcanizing phenomenon.This method eliminates vulcanization only
To obtain temporary transient effect, and exacerbation dehydration and positive plate can be brought to soften problem during vulcanization is eliminated, it is difficult to rise
To the effect of extension battery life, only preferably help out.(2) negative pulse charging method.Design principle is added in charging process
Enter negative pulse, have effect to reducing temperature rise, also have certain effect to prevention plate vulcanizing, it is but unobvious, although at present using compared with
Extensively, but category eliminate method.And current, each application field of battery, except requiring power saving, long service life, it is necessary to protect
Card power supply uninterrupted power supply.Because power network also inevitably occurs power outage, therefore, it is badly in need of proposing that one kind is follow-on
The cell activation control circuit of uninterrupted dc source.
The content of the invention
The technical problems to be solved by the invention are for above-mentioned deficiency of the prior art, there is provided one kind design is closed
Reason, realize convenient and low cost, using it is easy to operate, can effectively extend the service life of battery, improve battery
Service efficiency, the cell activation of practical uninterrupted dc source control circuit.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of battery of uninterrupted dc source is lived
Change control circuit, the uninterrupted dc source includes battery management circuit, PWM control drive circuits and controls to drive with PWM
The DC-DC converter that circuit connects, and positive pole connects and negative pole and battery management circuit phase with the output end of DC-DC converter
The battery for connecing, it is characterised in that：The cell activation control circuit includes the activation act circuit, the activation signals that are sequentially connected
Detection circuit and activation signals isolation circuit, and for being activation signals detection circuit, activation signals isolation circuit and battery
Management circuit provides the reference voltage circuit of reference voltage, and the compensating end of the PWM controls drive circuit is isolated with activation signals
The output end of circuit connects, and the comparison voltage input of the battery management circuit detects the output end phase of circuit with activation signals
Connect；
The activation act circuit includes activation start button S3, triode Q8 and resistance R11, the one of the resistance R11
The base stage of the remote signal input for activation act circuit, the triode Q8 is held to connect with the other end of resistance R11, it is described
Resistance R12 and electric capacity C2 in parallel is connected between the base stage of triode Q8 and emitter stage, the colelctor electrode of the triode Q8 passes through
The resistance R13 and resistance R10 of series connection connect the output end vo of DC-DC converter, the series connection node of the resistance R13 and resistance R10
It is grounded by resistance R14 and electric capacity C3 in parallel, the series connection node of the resistance R13 and resistance R10 is activation act circuit
Output end, the activation start button S3 is connected between the colelctor electrode of triode Q8 and emitter stage, the transmitting of the triode Q8
Pole connects the output end vo of DC-DC converter；
The activation signals detection circuit includes comparator U1, and the in-phase input end of the comparator U1 is connect by resistance R5
The reference voltage output end of reference voltage circuit, and be grounded by resistance R3, the taking over a job of inverting input of the comparator U1
The output end of operation circuit, is connected to resistance R6, the comparator U1 between the output end and in-phase input end of the comparator U1
Output end for activation signals detect circuit output end；
The activation signals isolation circuit includes light-coupled isolation chip U2 and triode Q2, the light-coupled isolation chip U2's
Anode connects the reference voltage output end of reference voltage circuit, taking over a job of the negative electrode letter of the light-coupled isolation chip U2 by resistance R4
Number detection circuit output end, the base stage of the collector connecting transistor Q2 of the light-coupled isolation chip U2, the light-coupled isolation core
The emitter stage of piece U2 and the colelctor electrode of triode Q2 are grounded, and resistance is connected between the base stage and emitter stage of the triode Q2
The output end of the transmitting extremely activation signals isolation circuit of R2, the triode Q2.
The cell activation control circuit of above-mentioned uninterrupted dc source, it is characterised in that：The reference voltage circuit by
Integrated three-terminal voltage-stabilizing chip TL431, resistance R16, resistance R17 and resistance R18 composition, the resistance R16, resistance R17 and resistance
The output end vo of the termination DC-DC converter after R18 series connection, other end ground connection；The series connection of the resistance R16 and resistance R17
Node connects with the negative electrode of integrated three-terminal voltage-stabilizing chip TL431, voltage electricity on the basis of the negative electrode of integrated three-terminal voltage-stabilizing chip TL431
The reference voltage output end on road, the series connection node of the resistance R17 and resistance R18 and the ginseng of integrated three-terminal voltage-stabilizing chip TL431
Examine pole to connect, the plus earth of the integrated three-terminal voltage-stabilizing chip TL431.
The cell activation control circuit of above-mentioned uninterrupted dc source, it is characterised in that：The PWM controls drive circuit
The 1st pin including controller chip UC3845 and resistance R1, the controller chip UC3845 is PWM control drive circuits
Compensating end, one end of the resistance R1 connects with the 6th pin of controller chip UC3845, and the other end of the resistance R1 is
PWM controls the output end of drive circuit.
The cell activation control circuit of above-mentioned uninterrupted dc source, it is characterised in that：The DC-DC converter includes
The grid of transformer T1, switch mosfet pipe Q3 and diode D1, the switch mosfet pipe Q3 is the control of DC-DC converter
Signal input part, the source ground of the switch mosfet pipe Q3, one end of the primary coil of the transformer T1 is DC-DC changes
The power input of parallel operation and connect with the output end of external power source, the other end of the primary coil of the transformer T1 with
The drain electrode of switch mosfet pipe Q3 connects, and one end of the secondary coil of the transformer T1 connects with the anode of diode D1, institute
The negative electrode for stating diode D1 is the output end vo of DC-DC converter, and is grounded by electric capacity C1, the secondary wire of the transformer T1
The other end ground connection of circle.
The cell activation control circuit of above-mentioned uninterrupted dc source, it is characterised in that：The battery management circuit bag
The anode for including switch mosfet pipe Q4 and light-coupled isolation chip U5, the light-coupled isolation chip U5 connects benchmark electricity by resistance R20
The reference voltage output end of volt circuit, the negative electrode of the light-coupled isolation chip U5 is the comparison voltage input of battery management circuit
And the output end of taking over a job signal deteching circuit, the colelctor electrode of the light-coupled isolation chip U5 meets DC-DC and converts by resistance R19
The output end vo of device, the grid of the switch mosfet pipe Q4 connects with the emitter stage of light-coupled isolation chip U5, the MOSFET
The grounded drain of switching tube Q4, the negative pole of the battery connects with the source electrode of switch mosfet pipe Q4, the switch mosfet
Resistance R21 is connected between the source electrode and grid of pipe Q4.
Present invention also offers a kind of electricity of the uninterrupted dc source that method and step is simple, realization is convenient, practical
The method for designing of pond activation control circuit, it is characterised in that the method is comprised the following steps：
Resistance R16, the resistance R17 and resistance R18 of step one, the suitable parameters of selection composition reference voltage circuit, its tool
Body process is as follows：
Step 101, the resistance that resistance R16 is chosen according to 1k Ω≤R16≤3k Ω；
Step 102, according to formulaChoose the resistance of resistance R18；Wherein, UR18It is resistance R18 two ends
Voltage and UR18=2.5V, IU4It is the electric current and I of the reference pole of integrated three-terminal voltage-stabilizing chip TL431U4=2uA；
Step 103, according to formulaThe resistance of resistance R17 is chosen, wherein, VrefIt is setting
The reference voltage of reference voltage circuit output；
Step 2, the integrated three-terminal voltage-stabilizing chip TL431 of connection, resistance R16, resistance R17 and resistance R18, composition benchmark electricity
Volt circuit, detailed process is：
Step 201, by the resistance R16, resistance R17 and resistance R18 series connection, and by series connection after an end be connected to DC-DC
The output end vo of converter, other end ground connection；
Step 202, the moon that the series connection node of the resistance R16 and resistance R17 is connected to integrated three-terminal voltage-stabilizing chip TL431
Pole；
Step 203, the ginseng that the series connection node of the resistance R17 and resistance R18 is connected to integrated three-terminal voltage-stabilizing chip TL431
Examine pole；
Step 204, the plus earth by integrated three-terminal voltage-stabilizing chip TL431, and by integrated three-terminal voltage-stabilizing chip TL431's
Negative electrode is drawn, used as the reference voltage output end of reference voltage circuit；
Resistance R10, resistance R11, resistance R12, the resistance of step 3, the suitable parameters of selection composition activation act circuit
R13 and resistance R14, and electric capacity C2 and electric capacity C3；Its detailed process is as follows：
Step 301, according to formulaThe resistance of resistance R10 and resistance R14 is chosen, wherein, V-1
For do not press activation start button S3, and activation act circuit remote signal input it is hanging when activation act circuit output
Hold the voltage of output；VOIt is the voltage of the output end output of DC-DC converter when cell activation is not actuated；
Step 302, according to formulaThe resistance of resistance R13 is chosen, wherein, V-2Be by
The remote signal input of lower activation start button S3 or activation act circuit is activated when receiving the low level of remote control transmitting
The voltage of the output end output of operation circuit；
Step 303, according to formulaThe resistance of resistance R11 and resistance R12 is chosen,
Wherein, VR12Resistance R12 two ends when receiving the low level of remote control transmitting for the remote signal input of activation act circuit
Voltage, VO1It is the final discharging voltage of battery, VbeFor the transmitting junction voltage and value of triode Q8 are 0.7V；
Step 304, according to formulaThe capacitance of electric capacity C2 is chosen, its
In, t be press activation start button S3 or activation act circuit remote signal input receive remote control transmitting low electricity
The delay voltage time of flat post activation operation circuit, uC2T () receives remote control for the remote signal input of activation act circuit
Device transmitting low level and by the voltage on electric capacity C2 after delay voltage time t, e is natural constant；
Step 305, according to formulaThe capacitance of electric capacity C3 is chosen, its
In, uC3T () is for power supply electrifying and by the voltage on electric capacity C3 after delay voltage time t；
Step 4, connection activation start button S3, triode Q8, resistance R10, resistance R11, resistance R12, resistance R13 and
Resistance R14, and electric capacity C2 and electric capacity C3, constitute activation act circuit, and detailed process is：
Step 401, the remote signal input that one end of resistance R11 is led to activation act circuit, and by resistance R11
Another base stage for terminating to triode Q8；
Step 402, resistance R12 and electric capacity C2 parallel connections are followed by between the base stage and emitter stage of triode Q8；
Step 403, the colelctor electrode that the end after resistance R13 and resistance R10 series connection is connected to triode Q8, it is another to terminate to
The output end vo of DC-DC converter；
Step 404, the series connection node that the end after resistance R14 and electric capacity C3 parallel connections is connected to resistance R13 and resistance R10,
The other end is grounded；
Step 405, the node extraction as the output end of activation act circuit of connecting using resistance R13 and resistance R10；
Step 406, will activation start button S3 be connected between the colelctor electrode of triode Q8 and emitter stage；
Step 407, the output end vo that the emitter stage of triode Q8 is connected to DC-DC converter；
Resistance R3, the resistance R5 and resistance R6 of step 5, the suitable parameters of selection composition activation signals detection circuit, its tool
Body process is：
According to formulaChoose resistance R3, resistance R5 and
The resistance of resistance R6, wherein, V+1It is the voltage of the in-phase input end of comparator U1 when cell activation is not actuated, V1HIt is comparator
U1 output end output high level voltage and equal to the supply voltage of comparator U1；V+2Comparator when starting for cell activation
The voltage of the in-phase input end of U1；
Step 6, connection comparator U1, resistance R3, resistance R5 and resistance R6, composition activation signals detection circuit, specific mistake
Cheng Wei：
Step 601, the in-phase input end that an end of one end of resistance R3 and resistance R5 is connected to comparator U1, and by resistance
The other end ground connection of R3, the other end of resistance R5 is drawn the reference voltage input that circuit is detected as activation signals；
Step 602, the comparison voltage input that the inverting input extraction of comparator U1 is detected circuit as activation signals
End；
Step 603, resistance R6 is connected between the output end of comparator U1 and in-phase input end；
Step 604, the output end that the output end extraction of comparator U1 is detected circuit as activation signals；
The resistance R2 and resistance R4 of step 7, the suitable parameters of selection composition activation signals isolation circuit, its detailed process
It is as follows：
Step 701, according to formulaThe resistance of resistance R2 is chosen, wherein,It is activation signals detection circuit
The electric current of output end output, Vbe' for triode Q2 transmitting junction voltage and value be 0.7V；
Step 702, according to formulaThe resistance of resistance R4 is chosen, wherein,It is light-coupled isolation chip U2
Input forward voltage drop,It is the forward current of light-coupled isolation chip U2.
Step 8, connection light-coupled isolation chip U2, triode Q2, resistance R2 and resistance R4, composition activation signals isolation electricity
Road, detailed process is：
Step 801, the anode that an end of resistance R4 is connected to light-coupled isolation chip U2, the other end are drawn as activation signals
The reference voltage input of isolation circuit；
Step 802, the negative electrode of light-coupled isolation chip U2 is drawn as the comparison voltage of activation signals isolation circuit it is input into
End；
Step 803, the colelctor electrode that the base stage of triode Q2 is connected to light-coupled isolation chip U2, and by light-coupled isolation chip U2
Emitter stage and the colelctor electrode of triode Q2 be grounded；
Step 804, resistance R2 is connected between the base stage of triode Q2 and emitter stage；
Step 805, the emitter stage of triode Q2 is drawn into the output end as activation signals isolation circuit；
Step 9, connection cell activation control circuit, and detailed process is：
Step 901, the reference voltage that the reference voltage input of activation signals detection circuit is connected to reference voltage circuit
Output end, and the comparison voltage input of activation signals detection circuit is terminated to the output end of activation act circuit；
Step 902, the comparison voltage input that the output of activation signals detection circuit is terminated to battery management circuit；
Step 903, the reference voltage that the reference voltage input of activation signals isolation circuit is connected to reference voltage circuit
Output end, and the comparison voltage input of activation signals isolation circuit is terminated into the output end that activation signals detects circuit；
Step 904, the compensating end that the output of activation signals isolation circuit is terminated to PWM control drive circuits.
The present invention has advantages below compared with prior art：
1st, cell activation of the present invention controls the simple structure of circuit, reasonable in design, realizes convenient and low cost, uses operation
It is convenient.
2nd, the method and step of the method for designing of cell activation control circuit of the present invention is simple, and it is convenient to realize, practical.
3rd, the present invention can manually activate startup and remote control activation starts two ways and battery is activated,
Battery makes action before there is sulfation, can effectively prevent plate vulcanizing phenomenon, can effectively extend battery
Service life, and it is safe and reliable, cost performance is high, improves the service efficiency of battery, development prospect and application to battery
It is significant.
4th, the present invention can be applied to the Switching Power Supply of the uninterrupted power supply environment such as electric power, communication, bank, hospital, security protection
Or in related electronic products, adapt to environment extensive.
5th, using effect of the invention is good, is easy to promote the use of.
In sum, the present invention is reasonable in design, realizes convenient and low cost, using easy to operate, can effectively extend
The service life of battery, improves the service efficiency of battery, and practical, using effect is good, is easy to promote the use of.
Below by drawings and Examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is schematic block circuit diagram of the invention.
Fig. 2 is circuit theory diagrams of the invention.
Description of reference numerals:
1-activation act circuit；2-activation signals detects circuit；3-activation signals isolation circuit；
4-reference voltage circuit；5-PWM controls drive circuit；6-DC-DC converter；
7-battery management circuit；8-battery.
Specific embodiment
As depicted in figs. 1 and 2, the cell activation control circuit of uninterrupted dc source of the invention, described uninterrupted straight
Stream power supply includes that battery management circuit 7, PWM controls drive circuit 5 and the DC-DC converter connected with PWM control drive circuits 5
6, and the battery 8 that positive pole connects with the output end of DC-DC converter 6 and negative pole connects with battery management circuit 7, the electricity
Pond activation control circuit includes the activation act circuit 1, activation signals detection circuit 2 and the activation signals isolation circuit that are sequentially connected
3, and for providing reference voltage for activation signals detection circuit 2, activation signals isolation circuit 3 and battery management circuit 7
Reference voltage circuit 4, the compensating end of the PWM controls drive circuit 5 connects with the output end of activation signals isolation circuit 3, institute
The comparison voltage input for stating battery management circuit 7 connects with the output end of activation signals detection circuit 2；
As shown in Fig. 2 the activation act circuit 1 includes activation start button S3, triode Q8 and resistance R11, it is described
One end of resistance R11 is the base stage of remote signal the input HK, the triode Q8 of activation act circuit 1 with resistance R11's
The other end connects, and resistance R12 and electric capacity C2 in parallel, the triode are connected between the base stage and emitter stage of the triode Q8
The colelctor electrode of Q8 connects the output end vo of DC-DC converter 6, the resistance R13 and electricity by the resistance R13 and resistance R10 that connect
The series connection node of resistance R10 is grounded by resistance R14 and electric capacity C3 in parallel, and the series connection node of the resistance R13 and resistance R10 is
The output end of activation act circuit 1, the activation start button S3 is connected between the colelctor electrode of triode Q8 and emitter stage, described
The emitter stage of triode Q8 connects the output end vo of DC-DC converter 6；Wherein, resistance R12 is the base bias electricity of triode Q8
Resistance, the effect of electric capacity C2 and resistance R12 is to ensure the remote signal input in activation act circuit 1 in activation act circuit 1
When HK is hanging, triode Q8 being capable of reliable turn-off；Meanwhile, when the remote signal input HK of activation act circuit 1 receive it is distant
When controlling the low level of device transmitting and needing to turn on triode Q8, must be requested that the remote signal input of activation act circuit 1
After the low level of HK maintains a period of time (such as several ms), triode Q8 could be allowed to turn on, so be prevented from being grasped because of activation
Make the instantaneous interference low level of the remote signal input HK of circuit 1 and produce misoperation；Electric capacity C3 in activation act circuit 1
Effect is to ensure that the inverting input in power supply electrifying moment comparator U1 is low level, and can be continued for some time (such as several
Individual ms), it is ensured that power supply electrifying moment, the output end of comparator U1 is output as high level, so that it is guaranteed that on uninterrupted dc source
Can normal work after electricity.
As shown in Fig. 2 the activation signals detection circuit 2 includes comparator U1, the in-phase input end of the comparator U1
The reference voltage output end Vref of reference voltage circuit 4 is met by resistance R5, and is grounded by resistance R3, the comparator U1's
The output end of taking over a job of inverting input operation circuit 1, electricity is connected between the output end and in-phase input end of the comparator U1
The output end of resistance R6, the comparator U1 detects the output end of circuit 2 for activation signals；During specific wiring, the comparator U1
Power supply termination reference voltage circuit 4 reference voltage output end Vref, the comparator U1 earth terminal ground connection；
As shown in Fig. 2 the activation signals isolation circuit 3 includes light-coupled isolation chip U2 and triode Q2, the optocoupler
The anode of isolating chip U2 meets the reference voltage output end Vref of reference voltage circuit 4, the light-coupled isolation core by resistance R4
The output end of taking over a job of the negative electrode signal deteching circuit 2 of piece U2, the collector connecting transistor Q2's of the light-coupled isolation chip U2
Base stage, the emitter stage of the light-coupled isolation chip U2 and the colelctor electrode of triode Q2 are grounded, the base stage of the triode Q2 with
The output end of the transmitting extremely activation signals isolation circuit 3 of resistance R2, the triode Q2 is connected between emitter stage.
As shown in Fig. 2 in the present embodiment, the reference voltage circuit 4 is by integrated three-terminal voltage-stabilizing chip TL431, resistance
R16, resistance R17 and resistance R18 are constituted, the termination DC-DC conversion after the resistance R16, resistance R17 and resistance R18 series connection
The output end vo of device 6, other end ground connection；The series connection node of the resistance R16 and resistance R17 and integrated three-terminal voltage-stabilizing chip
The negative electrode of TL431 connects, the reference voltage output end of potential circuit 4 on the basis of the negative electrode of integrated three-terminal voltage-stabilizing chip TL431
The series connection node of Vref, the resistance R17 and resistance R18 connects with the reference pole of integrated three-terminal voltage-stabilizing chip TL431, the collection
Into the plus earth of three-terminal voltage-stabilizing chip TL431.
As shown in Fig. 2 in the present embodiment, the PWM controls drive circuit 5 includes controller chip UC3845 and resistance
1st pin of R1, the controller chip UC3845 be PWM control drive circuit 5 compensating end, one end of the resistance R1 with
6th pin of controller chip UC3845 connects, and the other end of the resistance R1 controls the output end of drive circuit 5 for PWM.
As shown in Fig. 2 in the present embodiment, the DC-DC converter 6 includes transformer T1, switch mosfet pipe Q3 and two
The grid of pole pipe D1, the switch mosfet pipe Q3 is the control signal input of DC-DC converter 6, the switch mosfet
The source ground of pipe Q3, one end of the primary coil of the transformer T1 for DC-DC converter 6 power input Vi+ and with
The output end of external power source connects, the other end of the primary coil of the transformer T1 and the drain electrode phase of switch mosfet pipe Q3
Connect, one end of the secondary coil of the transformer T1 connects with the anode of diode D1, the negative electrode of the diode D1 is DC-DC
The output end vo of converter 6, and be grounded by electric capacity C1, the other end ground connection of the secondary coil of the transformer T1.It is specific real
Shi Shi, load RL is connected between the output end vo of DC-DC converter 6 and ground.
As shown in Fig. 2 in the present embodiment, the battery management circuit 7 includes switch mosfet pipe Q4 and light-coupled isolation core
Piece U5, the anode of the light-coupled isolation chip U5 meets the reference voltage output end Vref of reference voltage circuit 4 by resistance R20,
The negative electrode of the light-coupled isolation chip U5 is the comparison voltage input and taking over a job signal deteching circuit 2 of battery management circuit 7
Output end, the colelctor electrode of the light-coupled isolation chip U5 connects the output end vo of DC-DC converter 6 by resistance R19, described
The grid of switch mosfet pipe Q4 connects with the emitter stage of light-coupled isolation chip U5, and the drain electrode of the switch mosfet pipe Q4 connects
Ground, the negative pole of the battery 8 connects with the source electrode of switch mosfet pipe Q4, the source electrode and grid of the switch mosfet pipe Q4
Between be connected to resistance R21.
During specific implementation, the resistance choosing method of resistance R19, resistance R20 and resistance R21 in the battery management circuit 7
For：First, according to formulaThe resistance of resistance R20 is chosen, wherein, VrefIt is the reference voltage circuit 4 of setting
The reference voltage of output,It is the input forward voltage drop of light-coupled isolation chip U5,It is the forward direction electricity of light-coupled isolation chip U5
Stream；Then, according to formulaThe resistance of resistance R19 and resistance R21 is chosen, wherein,To flow into optocoupler
The electric current of the colelctor electrode of isolating chip U5, VGIt is the grid voltage of switch mosfet pipe Q4, VOIt is DC- when cell activation is not actuated
The voltage of the output end output of DC converters 6；
In the present embodiment, Vref=12V,The resistance for choosing resistance R20 is 3.6k Ω.
In the present embodiment,VG=12.4V, VO=26V, the resistance for choosing resistance R19 is 4.7k Ω, chooses electricity
The resistance for hindering R21 is 4.3k Ω.
Value mode more than, ensure that when the output end of activation signals detection circuit 2 exports low level, light
The emitter stage of coupling isolating chip U5 is output as high level, so that switch mosfet pipe Q4 is turned on, battery 8 starts electric discharge.
During specific implementation, the activation act circuit 1, activation signals detects circuit 2 and reference voltage circuit 4 and transformation
Altogether, the primary coil of the activation signals isolation circuit 3 and transformer T1 is altogether for the secondary coil of device T1.The light-coupled isolation
The model of chip U2 and light-coupled isolation chip U5 is PC817.
When cell activation control circuit of the invention is used, reference voltage circuit 4 is that activation signals detection circuit 2 provides base
Quasi- voltage Vref, the remote control letter received by the activation start button S3 in activation act circuit 1 and remote signal input HK
Number control activation signals detection circuit 2 output level just, and then by activation signals isolation circuit 3, PWM control drive electricity
Road 5 and battery management circuit 7, make battery 8 complete activation.Specifically operation principle is：
(1) it is activation signals detection circuit 2, activation signals isolation electricity by reference voltage circuit 4 in whole work process
Road 3 and battery management circuit 7 provide reference voltage Vref；
(2) when cell activation is not actuated, that is, activate start button S3 do not press and activation act circuit 1 remote signal
When input HK is hanging, the anti-phase input terminal voltage V of comparator U1 in activation signals detection circuit 2-1Less than in-phase input end electricity
Pressure V+1, the output end of comparator U1 is output as high level, and light-coupled isolation chip U2 does not work, and triode Q2 shut-offs, PWM controls are driven
Dynamic circuit 5 and the normal work of DC-DC converter 6；
(3) moment is started in cell activation, that is, the remote signal for pressing activation start button S3 or activation act circuit 1 is defeated
When entering to hold HK to receive the low level of remote control transmitting, the anti-phase input terminal voltage of comparator U1 in activation signals detection circuit 2
V-2Higher than homophase input terminal voltage V+1, the output end of comparator U1 is output as low level, so that the homophase input of comparator U1
Terminal voltage is by V+1It is reduced to V+2, and obviously have V-2>V+2, therefore unclamp the remote control letter of activation start button S3 or activation act circuit 1
After number input HK is hanging, the anti-phase input terminal voltage V of comparator U1 is still met-1More than homophase input terminal voltage V+2, make ratio
Output compared with device U1 maintains low level；When comparator U1 is output as low level, on the one hand, so that activation signals isolation circuit
Light-coupled isolation chip U2 in 3 starts working, so that triode Q2 saturation conductions so that controller in PWM control drive circuits 5
1st pin voltage of chip UC3845 is pulled low, the PWM control output low levels of drive circuit 5, switch mosfet pipe Q3 shut-offs,
DC-DC converter 6 is stopped, and battery 8 stops charging；On the other hand, the light-coupled isolation chip U5 in battery management circuit 7
Also work is started, so that the emitter stage of light-coupled isolation chip U5 is output as high level, switch mosfet pipe Q4 conductings, battery
8 constitute discharge loop by loading RL and switch mosfet pipe Q4, and start electric discharge；
(4) during cell activation, the homophase input terminal voltage V of comparator U1 in activation signals detection circuit 2+2Keep not
Become, the anti-phase input terminal voltage V of comparator U1 in activation signals detection circuit 2-2Reduce with the reduction of the voltage of battery 8,
But V is met always-2>V+2；
(5) in cell activation ending phase, with the continuous reduction of the voltage of battery 8, when the anti-phase input of comparator U1
Terminal voltage V-2It is reduced to and meets V-2<V+2When, the output end of comparator U1 is output as high level, and cell activation process terminates, a side
Face, the light-coupled isolation chip U5 in battery management circuit 7 is stopped, so that the emitter stage of light-coupled isolation chip U5 is output as
Low level, switch mosfet pipe Q4 shut-offs, battery 8 stops electric discharge；On the other hand, the optocoupler in activation signals isolation circuit 3
Isolating chip U2 is also stopped, so that triode Q2 is turned off so that PWM controls drive circuit 5 and DC-DC converter 6 extensive
Multiple normal work, starts again at and is charged to battery 8.
The cell activation of uninterrupted dc source of the invention controls the method for designing of circuit, comprises the following steps：
Resistance R16, the resistance R17 and resistance R18 of step one, the suitable parameters of selection composition reference voltage circuit 4, its tool
Body process is as follows：
Step 101, the resistance that resistance R16 is chosen according to 1k Ω≤R16≤3k Ω；
In the present embodiment, the resistance for choosing resistance R16 is 2k Ω；
Step 102, according to formulaChoose the resistance of resistance R18；Wherein, UR18It is resistance R18 two ends
Voltage and UR18=2.5V, IU4It is the electric current and I of the reference pole of integrated three-terminal voltage-stabilizing chip TL431U4=2uA；
FormulaRefer to the electric current on resistance R18 and be greater than the integrated three-terminal voltage-stabilizing chip TL431's of inflow
With reference to more than 100 times of the electric current of pole, the electric current influence point of the reference pole of integrated three-terminal voltage-stabilizing chip TL431 can be so avoided
Pressure ratio, and avoid the influence of noise；During specific implementation, should also meetUnder conditions of choose resistance use up
Possible big resistance R18, can so reduce stand-by power consumption；In the present embodiment, according to formulaChoose resistance
The resistance of R18 is 10k Ω；
Step 103, according to formulaThe resistance of resistance R17 is chosen, wherein, VrefIt is setting
The reference voltage of the output of reference voltage circuit 4；
In the present embodiment, Vref=12V, according to formulaR17=38 Ω are calculated, therefore
The resistance for choosing resistance R17 is 38k Ω；
Step 2, the integrated three-terminal voltage-stabilizing chip TL431 of connection, resistance R16, resistance R17 and resistance R18, composition benchmark electricity
Volt circuit 4, detailed process is：
Step 201, by the resistance R16, resistance R17 and resistance R18 series connection, and by series connection after an end be connected to DC-DC
The output end vo of converter 6, other end ground connection；
Step 202, the moon that the series connection node of the resistance R16 and resistance R17 is connected to integrated three-terminal voltage-stabilizing chip TL431
Pole；
Step 203, the ginseng that the series connection node of the resistance R17 and resistance R18 is connected to integrated three-terminal voltage-stabilizing chip TL431
Examine pole；
Step 204, the plus earth by integrated three-terminal voltage-stabilizing chip TL431, and by integrated three-terminal voltage-stabilizing chip TL431's
Negative electrode is drawn, used as the reference voltage output end Vref of reference voltage circuit 4；
Resistance R10, resistance R11, resistance R12, the resistance of step 3, the suitable parameters of selection composition activation act circuit 1
R13 and resistance R14, and electric capacity C2 and electric capacity C3；Its detailed process is as follows：
Step 301, according to formulaThe resistance of resistance R10 and resistance R14 is chosen, wherein, V-1
Not press activation start button S3, and activation act circuit 1 remote signal input HK it is hanging when activation act circuit 1
The voltage of output end output, i.e., the voltage of the inverting input of comparator U1 when cell activation is not actuated；VOFor cell activation not
The voltage of the output end output of DC-DC converter 6 during startup；
In the present embodiment, V-1=4.1V, VO=26V, according to formulaChoose resistance R14's
Resistance is 6.8k Ω, and the resistance of resistance R10 is 36k Ω；
Step 302, according to formulaThe resistance of resistance R13 is chosen, wherein, V-2Be by
The remote signal input HK of lower activation start button S3 or activation act circuit 1 lives when receiving the low level of remote control transmitting
Change the voltage of the output end output of operation circuit 1, i.e., the voltage of the inverting input of comparator U1 when cell activation starts；
In the present embodiment, V-2=7.1V, according to formulaChoose the resistance of resistance R13
It is 36k Ω；
Step 303, according to formulaThe resistance of resistance R11 and resistance R12 is chosen,
Wherein, VR12Resistance R12 two when receiving the low level of remote control transmitting for the remote signal input HK of activation act circuit 1
The voltage at end, VO1It is the final discharging voltage of battery 8, VbeFor the transmitting junction voltage and value of triode Q8 are 0.7V；
In the present embodiment, VO1=22V, according to formulaChoose the resistance of resistance R11
It is 36k Ω, the resistance of resistance R12 is 2k Ω；FormulaRefer to activation act circuit 1
The voltage at resistance R12 two ends so can more than 0.7V when remote signal input HK receives the low level of remote control transmitting
The voltage that the output end ensured in DC-DC converter 6 is exported is more than VO1When, battery can be by the remote control of activation act circuit 1
The low level that signal input part HK receives remote control transmitting is normally activated；
Step 304, according to formulaThe capacitance of electric capacity C2 is chosen, its
In, t be press activation start button S3 or activation act circuit 1 remote signal input HK receive remote control transmitting it is low
The delay voltage time of level post activation operation circuit 1, uC2T () receives for the remote signal input HK of activation act circuit 1
To remote control transmitting low level and by the voltage on electric capacity C2 after delay voltage time t, e is natural constant；
In the present embodiment, t=2ms, uC2T ()=0.7V, the capacitance for choosing electric capacity C2 is 1uF；
Step 305, according to formulaThe capacitance of electric capacity C3 is chosen, its
In, uC3T () is for power supply electrifying and by the voltage on electric capacity C3 after delay voltage time t；
In the present embodiment, uC3T ()=4V, the capacitance for choosing electric capacity C3 is 0.1uF；
Step 4, connection activation start button S3, triode Q8, resistance R10, resistance R11, resistance R12, resistance R13 and
Resistance R14, and electric capacity C2 and electric capacity C3, constitute activation act circuit 1, and detailed process is：
Step 401, the remote signal input HK that one end of resistance R11 is led to activation act circuit 1, and by resistance
Another base stage for terminating to triode Q8 of R11；
Step 402, resistance R12 and electric capacity C2 parallel connections are followed by between the base stage and emitter stage of triode Q8；
Step 403, the colelctor electrode that the end after resistance R13 and resistance R10 series connection is connected to triode Q8, it is another to terminate to
The output end vo of DC-DC converter 6；
Step 404, the series connection node that the end after resistance R14 and electric capacity C3 parallel connections is connected to resistance R13 and resistance R10,
The other end is grounded；
Step 405, the node extraction as the output end of activation act circuit 1 of connecting using resistance R13 and resistance R10；
Step 406, will activation start button S3 be connected between the colelctor electrode of triode Q8 and emitter stage；
Step 407, the output end vo that the emitter stage of triode Q8 is connected to DC-DC converter 6；
Resistance R3, the resistance R5 and resistance R6 of step 5, the suitable parameters of selection composition activation signals detection circuit 2, its
Detailed process is：
According to formulaChoose resistance R3, resistance R5 and
The resistance of resistance R6, wherein, V+1(activation start button S3 is not pressed, and activation act circuit 1 is distant for cell activation is not actuated
Control signal input part is hanging) when comparator U1 in-phase input end voltage, now, the output end output electricity high of comparator U1
It is flat；V1HFor comparator U1 output end export high level voltage and equal to the supply voltage of comparator U1；V+2For battery is lived
(the remote signal input HK for pressing activation start button S3 or activation act circuit 1 receives remote control transmitting to change startup
Low level) when comparator U1 in-phase input end voltage, now, the output end output low level of comparator U1；
In the present embodiment, V+1=6.8V, V1H=Vref=12V, V+2=3.4V, according to formulaThe resistance for choosing resistance R3 is 24k Ω, chooses resistance R5's
Resistance is 36k Ω, and the resistance for choosing resistance R6 is 36k Ω；
Step 6, connection comparator U1, resistance R3, resistance R5 and resistance R6, composition activation signals detection circuit 2, specifically
Process is：
Step 601, the in-phase input end that an end of one end of resistance R3 and resistance R5 is connected to comparator U1, and by resistance
The other end ground connection of R3, the other end of resistance R5 is drawn the reference voltage input that circuit 2 is detected as activation signals；
Step 602, the comparison voltage input that the inverting input extraction of comparator U1 is detected circuit 2 as activation signals
End；
Step 603, resistance R6 is connected between the output end of comparator U1 and in-phase input end；
Step 604, the output end that the output end extraction of comparator U1 is detected circuit 2 as activation signals；
The resistance R2 and resistance R4 of step 7, the suitable parameters of selection composition activation signals isolation circuit 3, its detailed process
It is as follows：
Step 701, according to formulaThe resistance of resistance R2 is chosen, wherein,It is activation signals detection circuit 2
The electric current of output end output, that is, flow into the electric current of the negative electrode of light-coupled isolation chip U2, Vbe' for triode Q2 transmitting junction voltage and
Value is 0.7V；
In the present embodiment,The resistance for choosing resistance R2 is 2k Ω；
Step 702, according to formulaThe resistance of resistance R4 is chosen, wherein,It is light-coupled isolation chip U2's
Input forward voltage drop,It is the forward current of light-coupled isolation chip U2.
In the present embodiment,The resistance for choosing resistance R4 is 6.2k Ω.
Step 8, connection light-coupled isolation chip U2, triode Q2, resistance R2 and resistance R4, composition activation signals isolation electricity
Road 3, detailed process is：
Step 801, the anode that an end of resistance R4 is connected to light-coupled isolation chip U2, the other end are drawn as activation signals
The reference voltage input of isolation circuit 3；
Step 802, the negative electrode of light-coupled isolation chip U2 is drawn as the comparison voltage of activation signals isolation circuit 3 it is input into
End；
Step 803, the colelctor electrode that the base stage of triode Q2 is connected to light-coupled isolation chip U2, and by light-coupled isolation chip U2
Emitter stage and the colelctor electrode of triode Q2 be grounded；
Step 804, resistance R2 is connected between the base stage of triode Q2 and emitter stage；
Step 805, the emitter stage of triode Q2 is drawn into the output end as activation signals isolation circuit 3；
Step 9, connection cell activation control circuit, and detailed process is：
Step 901, the benchmark electricity that the reference voltage input of activation signals detection circuit 2 is connected to reference voltage circuit 4
Pressure output end, and the comparison voltage input of activation signals detection circuit 2 is terminated to the output end of activation act circuit 1；
Step 902, the comparison voltage input that the output of activation signals detection circuit 2 is terminated to battery management circuit 7；
Step 903, the benchmark electricity that the reference voltage input of activation signals isolation circuit 3 is connected to reference voltage circuit 4
Pressure output end, and the comparison voltage input of activation signals isolation circuit 3 is terminated into the output end that activation signals detects circuit 2；
Step 904, the compensating end that the output of activation signals isolation circuit 3 is terminated to PWM control drive circuits 5.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (5)
1. a kind of uninterrupted dc source cell activation control circuit, the uninterrupted dc source include battery management circuit
(7), PWM controls drive circuit (5) and controls drive circuit (5) DC-DC converter (6) for connecting with PWM, and positive pole with
The battery (8) that the output end of DC-DC converter (6) connects and negative pole connects with battery management circuit (7), it is characterised in that：
The cell activation control circuit includes that the activation act circuit (1) being sequentially connected, activation signals detect circuit (2) and activation letter
Number isolation circuit (3), and for being that activation signals detects circuit (2), activation signals isolation circuit (3) and battery management circuit
(7) reference voltage circuit (4) of reference voltage is provided, the compensating end of PWM controls drive circuit (5) is isolated with activation signals
The output end of circuit (3) connects, and comparison voltage input and the activation signals of the battery management circuit (7) detect circuit (2)
Output end connect；
The activation act circuit (1) includes activation start button S3, triode Q8 and resistance R11, one end of the resistance R11
It is the remote signal input of activation act circuit (1), the base stage of the triode Q8 connects with the other end of resistance R11, institute
State and the colelctor electrode of resistance R12 in parallel and electric capacity C2, the triode Q8 is connected between the base stage of triode Q8 and emitter stage leads to
The resistance R13 and resistance R10 for crossing series connection connect the output end vo of DC-DC converter (6), the series connection of the resistance R13 and resistance R10
Node is grounded by resistance R14 and electric capacity C3 in parallel, and the series connection node of the resistance R13 and resistance R10 is activation act electricity
The output end on road (1), the activation start button S3 is connected between the colelctor electrode of triode Q8 and emitter stage, the triode Q8
Emitter stage connect the output end vo of DC-DC converter (6)；
The activation signals detects that circuit (2) includes comparator U1, and the in-phase input end of the comparator U1 is connect by resistance R5
The reference voltage output end of reference voltage circuit (4), and be grounded by resistance R3, the inverting input of the comparator U1 is taken over a job
Change the output end of operation circuit (1), resistance R6, the comparing are connected between the output end and in-phase input end of the comparator U1
The output end of device U1 is the output end of activation signals detection circuit (2)；
The activation signals isolation circuit (3) includes light-coupled isolation chip U2 and triode Q2, the light-coupled isolation chip U2's
Anode connects the reference voltage output end of reference voltage circuit (4) by resistance R4, and the negative electrode of the light-coupled isolation chip U2 is taken over a job
Change the output end of signal deteching circuit (2), the base stage of the collector connecting transistor Q2 of the light-coupled isolation chip U2, the optocoupler
The emitter stage of isolating chip U2 and the colelctor electrode of triode Q2 are grounded, and are connected between the base stage and emitter stage of the triode Q2
The output end of the transmitting extremely activation signals isolation circuit (3) of resistance R2, the triode Q2.
2. circuit is controlled according to the cell activation of the uninterrupted dc source described in claim 1, it is characterised in that：The benchmark
Potential circuit (4) is made up of integrated three-terminal voltage-stabilizing chip TL431, resistance R16, resistance R17 and resistance R18, the resistance R16,
The output end vo of termination DC-DC converter (6) after resistance R17 and resistance R18 series connection, other end ground connection；The resistance R16
Connect with the negative electrode of integrated three-terminal voltage-stabilizing chip TL431 with the series connection node of resistance R17, integrated three-terminal voltage-stabilizing chip TL431's
The reference voltage output end of potential circuit (4) on the basis of negative electrode, the series connection node of the resistance R17 and resistance R18 and integrated three
The reference pole of voltage stabilizing chip TL431 is held to connect, the plus earth of the integrated three-terminal voltage-stabilizing chip TL431.
3. circuit is controlled according to the cell activation of the uninterrupted dc source described in claim 1, it is characterised in that：The PWM
Control drive circuit (5) includes controller chip UC3845 and resistance R1, and the 1st pin of the controller chip UC3845 is
The compensating end of PWM controls drive circuit (5), one end of the resistance R1 connects with the 6th pin of controller chip UC3845, institute
It is the output end of PWM controls drive circuit (5) to state the other end of resistance R1.
4. circuit is controlled according to the cell activation of the uninterrupted dc source described in claim 1, it is characterised in that：The DC-
DC converters (6) include transformer T1, switch mosfet pipe Q3 and diode D1, and the grid of the switch mosfet pipe Q3 is
The control signal input of DC-DC converter (6), the source ground of the switch mosfet pipe Q3, the transformer T1's is first
Level coil one end for DC-DC converter (6) power input and connect with the output end of external power source, the transformer T1
The other end of primary coil connect with the drain electrode of switch mosfet pipe Q3, one end and two of the secondary coil of the transformer T1
The anode of pole pipe D1 connects, and the negative electrode of the diode D1 is the output end vo of DC-DC converter (6), and is connect by electric capacity C1
Ground, the other end ground connection of the secondary coil of the transformer T1.
5. circuit is controlled according to the cell activation of the uninterrupted dc source described in claim 1, it is characterised in that：The battery
The management anode of circuit (7) including switch mosfet pipe Q4 and light-coupled isolation chip U5, the light-coupled isolation chip U5 is by electricity
Resistance R20 connects the reference voltage output end of reference voltage circuit (4), and the negative electrode of the light-coupled isolation chip U5 is battery management circuit
(7) comparison voltage input and the output end of taking over a job signal deteching circuit (2), the colelctor electrode of the light-coupled isolation chip U5
The output end vo of DC-DC converter (6), the grid and light-coupled isolation chip of the switch mosfet pipe Q4 are connect by resistance R19
The emitter stage of U5 connects, the grounded drain of the switch mosfet pipe Q4, negative pole and the switch mosfet pipe of the battery (8)
The source electrode of Q4 connects, and resistance R21 is connected between the source electrode and grid of the switch mosfet pipe Q4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282753.0A CN104868550B (en) | 2015-05-28 | 2015-05-28 | The cell activation control circuit of uninterrupted dc source |
| CN201610917220.XA CN106505659B (en) | 2015-05-28 | 2015-05-28 | The design method of the cell activation control circuit of uninterrupted DC power supply |
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| CN201510282753.0A CN104868550B (en) | 2015-05-28 | 2015-05-28 | The cell activation control circuit of uninterrupted dc source |
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| CN201610917220.XA Division CN106505659B (en) | 2015-05-28 | 2015-05-28 | The design method of the cell activation control circuit of uninterrupted DC power supply |
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| CN106026623B (en) * | 2016-06-23 | 2019-07-19 | 广州金升阳科技有限公司 | A kind of isolated electronic switch |
| CN110912225B (en) * | 2019-11-22 | 2021-06-25 | 深圳市优必选科技股份有限公司 | Charging protection circuit, charging protection device and robot |
| CN113629809B (en) * | 2021-08-07 | 2024-01-16 | 西北工业大学 | Power isolation protection circuit for small satellite |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8018409B2 (en) * | 2005-04-01 | 2011-09-13 | Analog Devices, Inc. | Maximizing efficiency of battery-powered LED drivers |
| CN103457301A (en) * | 2012-05-29 | 2013-12-18 | 南京和栖原电气技术有限公司 | Battery activating device and control method thereof |
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| CN201011706Y (en) * | 2006-12-08 | 2008-01-23 | 深圳海昌泰电子有限公司 | Nickel-hydrogen nickel-cadmium battery group charger control circuit |
| CN203135546U (en) * | 2013-01-10 | 2013-08-14 | 袁造怀 | Activation charger for transformer substation storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8018409B2 (en) * | 2005-04-01 | 2011-09-13 | Analog Devices, Inc. | Maximizing efficiency of battery-powered LED drivers |
| CN103457301A (en) * | 2012-05-29 | 2013-12-18 | 南京和栖原电气技术有限公司 | Battery activating device and control method thereof |
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