CN203645360U - A charging and discharging multiplex circuit - Google Patents
A charging and discharging multiplex circuit Download PDFInfo
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- CN203645360U CN203645360U CN201320724359.4U CN201320724359U CN203645360U CN 203645360 U CN203645360 U CN 203645360U CN 201320724359 U CN201320724359 U CN 201320724359U CN 203645360 U CN203645360 U CN 203645360U
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Abstract
A charging and discharging multiplex circuit provided by the utility model integrates a charging circuit and a discharging circuit into one topology, so that highly efficient charging and discharging are realized, and the structure of the circuit is simplified. The charging and discharging multiplex circuit of the utility model comprises a composite charging and discharging circuit, a charging/discharging conversion module, a control module and a power supply module. The composite charging and discharging circuit is connected to a power supply/load through the charging/discharging conversion module. The control module is separately connected with the charging/discharging conversion module and the composite charging and discharging circuit. The control module controls the charging/discharging conversion module to select whether the composite charging and discharging circuit works in a charging path or a discharging path. The power supply module is separately connected to the control module and the charging/discharging conversion module, and separately provides power supplies for the control module and the charging/discharging conversion module.
Description
Technical field
The present invention relates to a kind of circuit, especially relate to one and discharge and recharge multiplex circuit.The system that is applicable to being very much applied to photovoltaic LED lighting system or discharges and recharges time-division operation.
Background technology
Along with the needs of development and the World Economics sustainable development of photovoltaic technology, the application of photovoltaic very extensively, particularly, from the photovoltaic property of solar cell, around solar-photovoltaic technology and LED lighting technology, photovoltaic LED lighting system is used widely.Photovoltaic LED lighting system is generally made up of parts such as solar photovoltaic cell panel, storage battery, controller, LED lamp source and constant-current drive circuits thereof, by solar energy photovoltaic panel, solar energy is converted to power storage in storage battery, provide electric energy by storage battery for whole system, in system running, need to carry out charging and discharging to storage battery according to the characteristic of storage battery, storage battery output ensures the reliable and stable work in LED lamp source by constant-current drive circuit again.The use of traditional rechargeable battery comprises two parts.Part I: charging circuit adds control circuit.Part II: discharge circuit adds control circuit.Due to therefore each own a set of topology, the separately a set of control circuit of circuit that work alone.Each class topology has considerable device to support its function.Mostly the controller of the photovoltaic LED lighting system of low pressure applications is to adopt discrete BUCK circuit charging at present, the circuit structure of BOOST circuit discharging, realize high efficiency and also need to add circuit of synchronous rectification, thus, on circuit for do HF switch MOSFET One's name is legion, circuit structure complexity, controller is bulky, cost is high.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one to discharge and recharge multiplex circuit, be applied to photovoltaic LED lighting system or discharge and recharge can time-division operation system, simplified circuit structure, saved cost.
Technical scheme of the present invention is:
One discharges and recharges multiplex circuit, it is characterized in that, comprise compound charge-discharge circuit, charge/discharge modular converter, control module, power module, described compound charge-discharge circuit connects power supply/load by charge/discharge modular converter, described control module connects respectively charge/discharge modular converter and compound charge-discharge circuit, select described compound charge-discharge circuit to work in charging path or discharge path by charge/discharge modular converter described in control module control, described power module is link control module and charge/discharge modular converter respectively, be respectively control module and charge/discharge modular converter provides power supply, described compound charge-discharge circuit comprises a MOS switching tube Q101, the 2nd MOS switching tube Q102, inductance L 101, storage capacitor E101 and E102, inspection leakage resistance R101, storage battery, the equal link control module of grid of a described MOS switching tube Q101 and the 2nd MOS switching tube Q102, the source class of the one MOS switching tube Q101 and the drain electrode of the 2nd MOS switching tube Q102 are all connected one end of inductance L 101, the other end of inductance L 101 connects the positive pole of storage capacitor E102, the negative pole of electric capacity E102 connects the source electrode of the 2nd MOS switching tube Q102, the positive pole of electric capacity E102 is connected with battery positive voltage, ground connection after the negative pole series connection inspection leakage resistance R101 of storage battery, the positive pole of storage capacitor E101 is connected respectively the leakage level of a MOS switching tube Q101 and the source electrode of the 2nd MOS switching tube Q102 with negative pole, in the time that described compound charge-discharge circuit is selected to connect power supply+with power supply-end by charge/discharge modular converter, a described MOS switching tube Q101 is PWM step-down charge switch, described the 2nd MOS switching tube Q102 is antilogical PWM synchronous rectification switch, is embodied as the function of storage battery step-down charging, in the time that described compound charge-discharge circuit is selected to connect load+with load-end by charge/discharge modular converter, described the 2nd MOS switching tube Q102 is the PWM discharge switch that boosts, a described MOS switching tube Q101 is antilogical PWM synchronous rectification switch, realize storage battery boost electric discharge function.
Described charge/discharge modular converter comprises the 3rd MOS switching tube Q103, the 4th MOS switching tube Q104, the 5th MOS switching tube Q105, optocoupler U131, triode Q121, Q122, resistance R 121, R122, R123, R124, R125, R131, R132, R133; The base stage of described triode Q122 is connected to the I/O2 port of the main control chip U101 of control module through current-limiting resistance R123, the collector electrode of triode Q122 is through the base stage of current-limiting resistance R122 connecting triode Q121, and for triode, Q121 provides base current; The emitter of described triode Q121 connects the VDD1 end of power module, and collector electrode connects the grid of the 3rd MOS switching tube Q103 by resistance R124, for Q103 provides grid driving power; Described Q121 connects biasing resistor R121, can toply draw biasing for Q121 turn-offs to provide; Described resistance R124, for Q103 provides the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures the conducting of Q103 fast and reliable; Described grid source resistance R 125 provides grid source charge discharging resisting path while shutoff for Q103, ensure the shutoff of Q103 fast and reliable; The input of described optocoupler U131 is connected between the I/O3 port and current-limiting resistance R131 of main control chip U101 of control module, for Q104, Q105 provide switch controlling signal; One end of described U131 output is connected in the VDD3 end of power module, the other end connects respectively the grid of the 4th MOS switching tube Q104, the 5th MOS switching tube Q105 by resistance R132, described resistance R132, for Q104, Q105 provide the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures Q104, the conducting of Q105 fast and reliable; Described grid source resistance R 133 provides grid source charge discharging resisting path while shutoff for Q104, Q105, ensure Q104, the shutoff of Q105 fast and reliable; In the time that the I/01 of main control chip U101 enable signal input port receives high level signal, the I/O3 port of U101 will be exported high level, the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 conducting simultaneously, the I/O2 port of U101 is by output low level, the 3rd MOS switching tube Q103 will turn-off, therefore the path that charges is strobed, and described compound charge-discharge circuit works in charged state; In the time that the I/01 of U101 port receives low level signal, the I/O3 port of U101 is by output low level, the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 will turn-off simultaneously, the I/O2 port of U101 will be exported high level, the 3rd MOS switching tube Q103 is by conducting, therefore discharge path is strobed, and described compound charge-discharge circuit works in discharge condition.
Described control module comprises that main control chip U101, MOS drive chip U111, shunt capacitance C111, damping resistance R111, R112, voltage sample resistance R 161, R162, R171, R172, R181, R182, amplifier U141, U151, homophase input resistance R143, R144, R153, R154, anti-phase input resistance R 141, R151, feedback resistance R142, R152, damping resistance R145, R155; Described metal-oxide-semiconductor drives the flash drive output ho of chip U111 to connect the grid of a MOS switching tube Q101, low limit drive output lo connects the grid of the 2nd MOS switching tube Q102, metal-oxide-semiconductor drives the flash of chip U111 to drive reference edge hs to connect the source class of a MOS switching tube Q101 and the leakage level of the 2nd MOS switching tube Q102, described metal-oxide-semiconductor drives the hb of chip U111 to connect VDD2 power supply, hs meets GND2, for a MOS switching tube Q101 provides driving power; Described metal-oxide-semiconductor drives hiHe Di limit, the flash control input end control input end li of chip U111 to be connected to respectively PWM1 and the PWM2 output of main control chip U101 by damping resistance R111, R112, drives signal for compound charge-discharge circuit provides charge/discharge PWM; Described sampling resistor R161, the R162 supply voltage of sampling, the A/D that the voltage signal of sampling is delivered to main control chip U101 through dividing potential drop 1 port of sampling; Described sampling resistor R171, the R172 load voltage of sampling, the A/D that the voltage signal of sampling is delivered to main control chip U101 through dividing potential drop 2 ports of sampling; Described sampling resistor R181, the R182 cell voltage of sampling, the A/D that the voltage signal of sampling is delivered to main control chip U101 through dividing potential drop 5 ports of sampling; Main control chip U101 is by the voltage signal of sampling, produces corresponding PWM duty and recently controls compound charge-discharge circuit and be operated in step-down charging or the discharge condition of boosting; Described integrated transporting discharging U141 sampling charging current signal, the in-phase input end of described integrated transporting discharging U141 connects battery terminal negative by resistance R 143, inverting input connects ground by resistance R 141, the A/D that the output of described integrated transporting discharging U141 is connected in U101 by damping resistance R145 3 ports of sampling; The differential amplifier circuit that integrated transporting discharging U141 consists of R141, R142, R143, R144, is converted into A/D that voltage signal is delivered to U101 3 ports of sampling by the electric current that flows through inspection leakage resistance R101; Described integrated transporting discharging U151 sampling load current signal, the A/D that the output of described integrated transporting discharging U151 is connected in U101 by damping resistance R155 4 ports of sampling; The differential amplifier circuit that integrated transporting discharging U151 consists of R151, R152, R153, R154, is converted into A/D that voltage signal is delivered to U101 4 ports of sampling by the electric current that flows through inspection leakage resistance R101; The charging current signal of described sampling and load current signal provide Current Control for compound charge-discharge circuit, control the size of charging current and discharging current.
Described power module comprises DC-DC power supply U191, low pressure difference linear voltage regulator U194, described DC-DC power supply U191, from the power taking of storage battery two ends, is converted to VDD1 by battery tension, VDD2, the 12V power supply that VDD3 tri-tunnels isolate mutually, VDD1 is converted to VCC5V power supply by U194 again; Described VDD1 is the drive circuitry that MOS drives chip U111 and the 3rd MOS switching tube Q103, described VDD2 is the drive circuitry of a MOS switching tube Q101, described VDD3 is the drive circuitry of the 4th MOS switching tube Q104, the 5th MOS switching tube Q105, and described VCC power supply is U101, amplifier U141, amplifier U151 power supply.
Technique effect of the present invention:
One provided by the invention discharges and recharges multiplex circuit, and charging circuit and discharge circuit are integrated into a topology, has both realized high efficiency discharging and recharging, and has simplified again circuit structure; Reduce volume, saved cost.Be applicable to being very much applied to photovoltaic LED lighting system or discharge and recharge can time-division operation system.
Brief description of the drawings
Fig. 1 is the electrical block diagram that discharges and recharges multiplex circuit of the present invention.
Fig. 2 is the electrical block diagram of the charge/discharge modular converter that discharges and recharges multiplex circuit of the present invention.
Fig. 3 is the electrical block diagram of the control module that discharges and recharges multiplex circuit of the present invention.
Fig. 4 is the power module circuitry structural representation that discharges and recharges multiplex circuit of the present invention.
Fig. 5 is the workflow diagram that the present invention discharges and recharges multiplex circuit and be applied to photovoltaic LED lighting system.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
As shown in Figure 1, be the electrical block diagram that discharges and recharges multiplex circuit of the present invention.One discharges and recharges multiplex circuit, comprise compound charge-discharge circuit, charge/discharge modular converter, control module, power module, described compound charge-discharge circuit connects power supply/load by charge/discharge modular converter, described control module connects respectively charge/discharge modular converter and compound charge-discharge circuit, select described compound charge-discharge circuit to work in charging path or discharge path by charge/discharge modular converter described in control module control, described power module is link control module and charge/discharge modular converter respectively, be respectively control module and charge/discharge modular converter provides power supply, described compound charge-discharge circuit comprises a MOS switching tube Q101, the 2nd MOS switching tube Q102, inductance L 101, storage capacitor E101 and E102, inspection leakage resistance R101, storage battery, the equal link control module of grid of a described MOS switching tube Q101 and the 2nd MOS switching tube Q102, the source class of the one MOS switching tube Q101 and the drain electrode of the 2nd MOS switching tube Q102 are all connected one end of inductance L 101, the other end of inductance L 101 connects the positive pole of storage capacitor E102, the negative pole of electric capacity E102 connects the source electrode of the 2nd MOS switching tube Q102, the positive pole of electric capacity E102 is connected with battery positive voltage, inspection leakage resistance R101 is connected between the negative pole of storage battery and ground and does current sample, the positive pole of storage capacitor E101 is connected respectively the leakage level of a MOS switching tube Q101 and the source electrode of the 2nd MOS switching tube Q102 with negative pole, in the time that described compound charge-discharge circuit is selected to connect power supply+with power supply-end by charge/discharge modular converter, a described MOS switching tube Q101 is PWM step-down charge switch, described the 2nd MOS switching tube Q102 is antilogical PWM synchronous rectification switch, is embodied as the function of storage battery step-down charging, in the time that described compound charge-discharge circuit is selected to connect load+with load-end by charge/discharge modular converter, described the 2nd MOS switching tube Q102 is the PWM discharge switch that boosts, a described MOS switching tube Q101 is antilogical PWM synchronous rectification switch, realize storage battery boost electric discharge function.
As shown in Figure 2, be the electrical block diagram of the charge/discharge modular converter that discharges and recharges multiplex circuit of the present invention.Charge/discharge modular converter comprises the 3rd MOS switching tube Q103, the 4th MOS switching tube Q104, the 5th MOS switching tube Q105, optocoupler U131, triode Q121, Q122, resistance R 121, R122, R123, R124, R125, R131, R132, R133; The base stage of described triode Q122 is connected to the I/O2 port of the main control chip U101 of control module through current-limiting resistance R123, the collector electrode of triode Q122 is through the base stage of current-limiting resistance R122 connecting triode Q121, and for triode, Q121 provides base current; The emitter of described triode Q121 connects the VDD1 end of power module, and collector electrode connects the grid of the 3rd MOS switching tube Q103 by resistance R124, for Q103 provides grid driving power; Described Q121 connects biasing resistor R121, can toply draw biasing for Q121 turn-offs to provide; Described resistance R124, for Q103 provides the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures the conducting of Q103 fast and reliable; Described grid source resistance R 125 provides grid source charge discharging resisting path while shutoff for Q103, ensure the shutoff of Q103 fast and reliable; The input of described optocoupler U131 is connected between the I/O3 port and current-limiting resistance R131 of main control chip U101 of control module, for Q104, Q105 provide switch controlling signal; One end of described U131 output is connected in the VDD3 end of power module, the other end connects respectively the grid of four MOS switching tube Q104, the 5th MOS switching tube Q105 by resistance R132, described resistance R132, for Q104, Q105 provide the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures Q104, the conducting of Q105 fast and reliable; Described grid source resistance R 133 provides grid source charge discharging resisting path while shutoff for Q104, Q105, ensure Q104, the shutoff of Q105 fast and reliable; In the time that the I/01 of main control chip U101 enable signal input port receives high level signal, the I/O3 port of U101 will be exported high level, the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 conducting simultaneously, the I/O2 port of U101 is by output low level, the 3rd MOS switching tube Q103 will turn-off, therefore the path that charges is strobed, and described compound charge-discharge circuit works in charged state; In the time that the I/01 of U101 port receives low level signal, the I/O3 port of U101 is by output low level, the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 will turn-off simultaneously, the I/O2 port of U101 will be exported high level, the 3rd MOS switching tube Q103 is by conducting, therefore discharge path is strobed, and described compound charge-discharge circuit works in discharge condition.
The 3rd MOS switching tube Q103, the 4th MOS switching tube Q104 in charge/discharge modular converter, the conducting state of the 5th MOS switching tube Q105 has determined that charge/discharge modular converter is operated in charging path or discharge path, in the time of the 3rd MOS switching tube Q103 shutoff, the 4th MOS switching tube Q104 the 5th MOS switching tube Q105 conducting simultaneously, charge/discharge modular converter is operated in charging path; A described MOS switching tube Q101 is PWM step-down switching, and the 2nd MOS switching tube Q102 is synchronous rectification switch, is embodied as the function of charge in batteries.In the time that the 3rd MOS switching tube Q103 conducting, the 4th MOS switching tube Q104 the 5th MOS switching tube Q105 turn-off simultaneously, charge/discharge modular converter is operated in discharge path; Described the 2nd MOS switching tube Q102 is PWM boosted switch, and a MOS switching tube Q101 is synchronous rectification switch, realizes the function of load discharge.Wherein, the 3rd MOS switching tube Q103 connection load negative terminal and ground are connected to the switch as charging path between power positive end and a MOS switching tube Q101 as switch, the 4th MOS switching tube Q104, the 5th MOS switching tube Q105 of load discharge path.Described triode Q122 is connected to the I/O2 port of U101 through base stage current-limiting resistance R123, for triode, Q121 provides base current.Described triode Q121 connects VDD1 power supply and the 3rd MOS switching tube Q103, for Q103 provides grid driving power; Described Q121 base stage connects current-limiting resistance R122, for Q121 conducting provides base current; Described Q121 connects biasing resistor R121, can toply draw biasing for Q121 turn-offs to provide.Described resistance R124, for Q103 provides the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures the conducting of Q103 fast and reliable.Described grid source resistance R 125 provides grid source charge discharging resisting path while shutoff for Q103, ensure the shutoff of Q103 fast and reliable.Described optocoupler U131 is connected between the I/O3 port and current-limiting resistance R131 of U101, for Q104, Q105 provide switch controlling signal.Described U131 is connected in VDD3 power end, for Q104, Q105 provide grid driving power.Described resistance R132, for Q104, Q105 provide the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures Q104, the conducting of Q105 fast and reliable.Described grid source resistance R 133 provides grid source charge discharging resisting path while shutoff for Q104, Q105, ensure Q104, the shutoff of Q105 fast and reliable.In the time that the I/01 of U101 port receives from outside charging signals, the I/O3 port of U101 will be exported high level, the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 conducting simultaneously; The I/O2 port of U101 is by output low level, and the 3rd MOS switching tube Q103 will turn-off, and the path that therefore charges is strobed, and described compound charge-discharge circuit works in charged state.In the time that the I/01 of U101 port receives from outside discharge signal, the I/O3 port of U101 is by output low level, and the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 will turn-off simultaneously; The I/O2 port of U101 will be exported high level, and the 3rd MOS switching tube Q103 is by conducting, and therefore discharge path is strobed, and described compound charge-discharge circuit works in discharge condition.
As shown in Figure 3, be the electrical block diagram of the control module that discharges and recharges multiplex circuit of the present invention.Control module comprises that main control chip U101, MOS drive chip U111, shunt capacitance C111, damping resistance R111, R112, voltage sample resistance R 161, R162, R171, R172, R181, R182, amplifier U141, U151, homophase input resistance R143, R144, R153, R154, anti-phase input resistance R 141, R151, feedback resistance R142, R152, damping resistance R145, R155; Described metal-oxide-semiconductor drives the flash drive output ho of chip U111 to connect the grid of a MOS switching tube Q101, low limit drive output lo connects the grid of the 2nd MOS switching tube Q102, metal-oxide-semiconductor drives the flash of chip U111 to drive reference edge hs to connect the source class of a MOS switching tube Q101 and the leakage level of the 2nd MOS switching tube Q102, described metal-oxide-semiconductor drives the hb of chip U111 to connect VDD2 power supply, hs meets GND2, for a MOS switching tube Q101 provides driving power; Described metal-oxide-semiconductor drives hiHe Di limit, the flash control input end control input end li of chip U111 to be connected to respectively PWM1 and the PWM2 output of main control chip U101 by damping resistance R111, R112, drives signal for compound charge-discharge circuit provides charge/discharge PWM;
Charging circuit job description: after storage battery access, in the time that the I/O1 of U101 port receives high level and U101 and detects that by voltage detecting circuit supply voltage is greater than battery tension 5V, charge/discharge modular converter gating charging path, Q104, Q105 conducting simultaneously, Q103 shutoff.The PWM1 port output pwm signal of U101 drives the hi end of chip U111 to MOS, make step-down PWM switch by driving signal controlling an one MOS switching tube Q101 identical with PWM1 logic of ho end output of U111.Power module provides the driving power supply of VDD2 power supply to Q101.One of the PWM2 port output of U101 and PWM1 port logic relation complementation and the signal with certain Dead Time drive the li end of chip U111 to MOS, export the signal controlling identical with PWM2 logic a 2nd MOS switching tube Q102 do synchronous rectification by the lo end of U111.Battery tension detects, and supply voltage detects as PWM1 output suitable duty ratio provides foundation, and charging current detects provides Current Control accurately for charging circuit.
Discharge circuit job description: after storage battery access, when the I/O1 of U101 port receives low level, charge/discharge modular converter gating discharge path, Q104, Q105 will turn-off simultaneously, Q103 conducting.The PWM2 port output pwm signal of U101 drives the li end of chip U111 to MOS, by a driving signal controlling two MOS switching tube Q102 identical with PWM2 logic of lo end output of the U111 PWM switch that boosts.One of the PWM1 port output of U101 and PWM2 port logic relation complementation and the signal with certain Dead Time drive the hi end of chip U111 to MOS, export the signal controlling identical with PWM1 logic an one MOS switching tube Q101 do synchronous rectification by the ho end of U111.Power module provides the driving power supply of VDD2 power supply to Q101.Battery tension detects, and load voltage detects as PWM2 output suitable duty ratio provides foundation, and discharging current detects provides Current Control accurately for discharge circuit.
As shown in Figure 4, be power module circuitry figure.Power module comprises DC-DC power supply U191, low pressure difference linear voltage regulator U194, DC-DC power supply U191, from the power taking of storage battery two ends, is converted to VDD1 by battery tension, VDD2, the 12V power supply that VDD3 tri-tunnels isolate mutually, VDD1 is converted to VCC5V power supply by U194 again; VDD1 is the drive circuitry that MOS drives chip U111 and the 3rd MOS switching tube Q103, VDD2 is the drive circuitry of a MOS switching tube Q101, VDD3 is the drive circuitry of the 4th MOS switching tube Q104, the 5th MOS switching tube Q105, and VCC power supply is main control chip U101, amplifier U141, amplifier U151 power supply.
As shown in Figure 5, be the workflow diagram that discharges and recharges multiplex circuit and be applied to photovoltaic LED lighting system of the present invention.Wherein power end is photovoltaic panel, and load end is LED lighting apparatus.Photovoltaic LED lighting system utilizes daytime for charge in batteries, and battery discharging at night is the power supply of LED lighting apparatus.The course of work is as follows: 1) first carry out day/night detection, when daytime, photovoltaic terminal voltage is higher than battery tension, and detects when photovoltaic voltage is greater than battery tension 5V, gating charging path, and photovoltaic panel is charge in batteries; 2) when evening, photovoltaic terminal voltage declines and photovoltaic voltage is less than 5V, then detects to hold time whether be greater than 1 minute, gating discharge path, and storage battery is load discharge.
It should be pointed out that the above embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore, although this specification and embodiment have been described in detail to the invention,, it will be appreciated by those skilled in the art that still and can modify or be equal to replacement the invention; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the invention, it is all encompassed in the middle of the protection range of the invention patent.
Claims (4)
1. one kind discharges and recharges multiplex circuit, it is characterized in that, comprise compound charge-discharge circuit, charge/discharge modular converter, control module, power module, described compound charge-discharge circuit connects power supply/load by charge/discharge modular converter, described control module connects respectively charge/discharge modular converter and compound charge-discharge circuit, select described compound charge-discharge circuit to work in charging path or discharge path by charge/discharge modular converter described in control module control, described power module is link control module and charge/discharge modular converter respectively, be respectively control module and charge/discharge modular converter provides power supply, described compound charge-discharge circuit comprises a MOS switching tube Q101, the 2nd MOS switching tube Q102, inductance L 101, storage capacitor E101 and E102, inspection leakage resistance R101, storage battery, the equal link control module of grid of a described MOS switching tube Q101 and the 2nd MOS switching tube Q102, the source class of the one MOS switching tube Q101 and the drain electrode of the 2nd MOS switching tube Q102 are all connected one end of inductance L 101, the other end of inductance L 101 connects the positive pole of storage capacitor E102, the negative pole of electric capacity E102 connects the source electrode of the 2nd MOS switching tube Q102, the positive pole of electric capacity E102 is connected with battery positive voltage, ground connection after the negative pole series connection inspection leakage resistance R101 of storage battery, the positive pole of storage capacitor E101 is connected respectively the leakage level of a MOS switching tube Q101 and the source electrode of the 2nd MOS switching tube Q102 with negative pole, in the time that described compound charge-discharge circuit is selected to connect power supply+with power supply-end by charge/discharge modular converter, a described MOS switching tube Q101 is PWM step-down charge switch, described the 2nd MOS switching tube Q102 is antilogical PWM synchronous rectification switch, is embodied as the function of storage battery step-down charging, in the time that described compound charge-discharge circuit is selected to connect load+with load-end by charge/discharge modular converter, described the 2nd MOS switching tube Q102 is the PWM discharge switch that boosts, a described MOS switching tube Q101 is antilogical PWM synchronous rectification switch, realize storage battery boost electric discharge function.
2. the multiplex circuit that discharges and recharges according to claim 1, it is characterized in that, described charge/discharge modular converter comprises the 3rd MOS switching tube Q103, the 4th MOS switching tube Q104, the 5th MOS switching tube Q105, optocoupler U131, triode Q121, Q122, resistance R 121, R122, R123, R124, R125, R131, R132, R133; The base stage of described triode Q122 is connected to the I/O2 port of the main control chip U101 of control module through current-limiting resistance R123, the collector electrode of triode Q122 is through the base stage of current-limiting resistance R122 connecting triode Q121, and for triode, Q121 provides base current; The emitter of described triode Q121 connects the VDD1 end of power module, and collector electrode connects the grid of the 3rd MOS switching tube Q103 by resistance R124, for Q103 provides grid driving power; Described Q121 connects biasing resistor R121, can toply draw biasing for Q121 turn-offs to provide; Described resistance R124, for Q103 provides the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures the conducting of Q103 fast and reliable; Described grid source resistance R 125 provides grid source charge discharging resisting path while shutoff for Q103, ensure the shutoff of Q103 fast and reliable; The input of described optocoupler U131 is connected between the I/O3 port and current-limiting resistance R131 of main control chip U101 of control module, for Q104, Q105 provide switch controlling signal; One end of described U131 output is connected in the VDD3 end of power module, the other end connects respectively the grid of the 4th MOS switching tube Q104, the 5th MOS switching tube Q105 by resistance R132, described resistance R132, for Q104, Q105 provide the high frequency parasitic oscillation that drives path and eliminate lead-in inductance between grid source, ensures Q104, the conducting of Q105 fast and reliable; Described grid source resistance R 133 provides grid source charge discharging resisting path while shutoff for Q104, Q105, ensure Q104, the shutoff of Q105 fast and reliable; In the time that the I/01 of main control chip U101 enable signal input port receives high level signal, the I/O3 port of U101 will be exported high level, the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 conducting simultaneously, the I/O2 port of U101 is by output low level, the 3rd MOS switching tube Q103 will turn-off, therefore the path that charges is strobed, and described compound charge-discharge circuit works in charged state; In the time that the I/01 of U101 port receives low level signal, the I/O3 port of U101 is by output low level, the 4th MOS switching tube Q104 and the 5th MOS switching tube Q105 will turn-off simultaneously, the I/O2 port of U101 will be exported high level, the 3rd MOS switching tube Q103 is by conducting, therefore discharge path is strobed, and described compound charge-discharge circuit works in discharge condition.
3. the multiplex circuit that discharges and recharges according to claim 1, it is characterized in that, described control module comprises that main control chip U101, MOS drive chip U111, shunt capacitance C111, damping resistance R111, R112, voltage sample resistance R 161, R162, R171, R172, R181, R182, integrated transporting discharging U141, U151, homophase input resistance R143, R144, R153, R154, anti-phase input resistance R 141, R151, feedback resistance R142, R152, damping resistance R145, R155; Described metal-oxide-semiconductor drives the flash drive output ho of chip U111 to connect the grid of a MOS switching tube Q101, low limit drive output lo connects the grid of the 2nd MOS switching tube Q102, metal-oxide-semiconductor drives the flash of chip U111 to drive reference edge hs to connect the source class of a MOS switching tube Q101 and the leakage level of the 2nd MOS switching tube Q102, described metal-oxide-semiconductor drives the hb of chip U111 to connect VDD2 power supply, hs meets GND2, for a MOS switching tube Q101 provides driving power; Described metal-oxide-semiconductor drives hiHe Di limit, the flash control input end control input end li of chip U111 to be connected to respectively PWM1 and the PWM2 output of main control chip U101 by damping resistance R111, R112, drives signal for compound charge-discharge circuit provides charge/discharge PWM; Described sampling resistor R161, the R162 supply voltage of sampling, the A/D that the voltage signal of sampling is delivered to main control chip U101 through dividing potential drop 1 port of sampling; Described sampling resistor R171, the R172 load voltage of sampling, the A/D that the voltage signal of sampling is delivered to main control chip U101 through dividing potential drop 2 ports of sampling; Described sampling resistor R181, the R182 cell voltage of sampling, the A/D that the voltage signal of sampling is delivered to main control chip U101 through dividing potential drop 5 ports of sampling; Main control chip U101 is by the voltage signal of sampling, produces corresponding PWM duty and recently controls compound charge-discharge circuit and be operated in step-down charging or the discharge condition of boosting; Described integrated transporting discharging U141 sampling charging current signal, the in-phase input end of described integrated transporting discharging U141 connects battery terminal negative by resistance R 143, inverting input connects ground by resistance R 141, the A/D that the output of described integrated transporting discharging U141 is connected in U101 by damping resistance R145 3 ports of sampling; The differential amplifier circuit that integrated transporting discharging U141 consists of R141, R142, R143, R144, is converted into A/D that voltage signal is delivered to U101 3 ports of sampling by the electric current that flows through inspection leakage resistance R101; Described integrated transporting discharging U151 sampling load current signal, the A/D that the output of described integrated transporting discharging U151 is connected in U101 by damping resistance R155 4 ports of sampling; The differential amplifier circuit that integrated transporting discharging U151 consists of R151, R152, R153, R154, is converted into A/D that voltage signal is delivered to U101 4 ports of sampling by the electric current that flows through inspection leakage resistance R101; The charging current signal of described sampling and load current signal provide Current Control for compound charge-discharge circuit, control the size of charging current and discharging current.
4. the multiplex circuit that discharges and recharges according to claim 1, it is characterized in that, described power module comprises DC-DC power supply U191, the low pressure difference linear voltage regulator U194 of three tunnel isolation outputs, described DC-DC power supply U191 is from the power taking of storage battery two ends, battery tension is converted to VDD1, VDD2, the 12V power supply that VDD3 tri-tunnels isolate mutually, VDD1 is converted to VCC5V power supply by U194 again; Described VDD1 is the drive circuitry that MOS drives chip U111 and the 3rd MOS switching tube Q103, described VDD2 is the drive circuitry of a MOS switching tube Q101, described VDD3 is the drive circuitry of the 4th MOS switching tube Q104, the 5th MOS switching tube Q105, and described VCC power supply is main control chip U101, integrated transporting discharging U141, integrated transporting discharging U151 power supply.
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| CN201320724359.4U CN203645360U (en) | 2013-11-15 | 2013-11-15 | A charging and discharging multiplex circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607006A (en) * | 2013-11-15 | 2014-02-26 | 中科恒源科技股份有限公司 | A charging and discharging reuse circuit |
| CN108152750A (en) * | 2017-12-26 | 2018-06-12 | 深圳先进技术研究院 | The battery charging and discharging parameter identification method and system of a kind of electric vehicle |
| CN111049203A (en) * | 2018-10-11 | 2020-04-21 | 圣邦微电子（北京）股份有限公司 | Charge and discharge management circuit and chargeable electronic equipment |
| CN113796006A (en) * | 2020-07-28 | 2021-12-14 | 深圳市大疆创新科技有限公司 | Drive arrangement, chip, shooting device and unmanned aerial vehicle |
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2013
- 2013-11-15 CN CN201320724359.4U patent/CN203645360U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607006A (en) * | 2013-11-15 | 2014-02-26 | 中科恒源科技股份有限公司 | A charging and discharging reuse circuit |
| CN108152750A (en) * | 2017-12-26 | 2018-06-12 | 深圳先进技术研究院 | The battery charging and discharging parameter identification method and system of a kind of electric vehicle |
| CN108152750B (en) * | 2017-12-26 | 2020-09-04 | 深圳先进技术研究院 | Battery charging and discharging parameter identification method and system for electric automobile |
| CN111049203A (en) * | 2018-10-11 | 2020-04-21 | 圣邦微电子（北京）股份有限公司 | Charge and discharge management circuit and chargeable electronic equipment |
| CN113796006A (en) * | 2020-07-28 | 2021-12-14 | 深圳市大疆创新科技有限公司 | Drive arrangement, chip, shooting device and unmanned aerial vehicle |
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