CN104422833A - Charging and discharging detecting device - Google Patents

Charging and discharging detecting device Download PDF

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Publication number
CN104422833A
CN104422833A CN201310386222.7A CN201310386222A CN104422833A CN 104422833 A CN104422833 A CN 104422833A CN 201310386222 A CN201310386222 A CN 201310386222A CN 104422833 A CN104422833 A CN 104422833A
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CN
China
Prior art keywords
resistance
module
discharge
voltage
recharge
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Pending
Application number
CN201310386222.7A
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Chinese (zh)
Inventor
周明杰
张飞
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Oceans King Lighting Science and Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Original Assignee
Oceans King Lighting Science and Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
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Application filed by Oceans King Lighting Science and Technology Co Ltd, Shenzhen Oceans King Lighting Engineering Co Ltd filed Critical Oceans King Lighting Science and Technology Co Ltd
Priority to CN201310386222.7A priority Critical patent/CN104422833A/en
Publication of CN104422833A publication Critical patent/CN104422833A/en
Pending legal-status Critical Current

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a charging and discharging detecting device, which is provided with an anode terminal and a cathode terminal of an external charger or electric appliance. The device comprises a power supply module, a discharging module, a releasing module and a control module, wherein the power supply module is used for providing discharging voltage and outputting the discharging voltage through the anode terminal and the cathode terminal; the discharging module is connected between an anode output end and a cathode terminal of the power supply module and is used for controlling discharging of the power supply module; the releasing module is connected between the anode terminal and the cathode terminal and is used for releasing current from the external charger; the control module is connected with the discharging module and the releasing module and is used for stopping the discharging module when being connected with the charger, so that the releasing module is electrified to work; the control module is used for electrifying the discharging module when being connected with the electric appliance, so that the releasing module is stopped. The charging and discharging detecting device can simulate a battery, so that use of the battery is reduced.

Description

Discharge and recharge pick-up unit
Technical field
The present invention relates to checkout equipment technical field, particularly relating to a kind of discharge and recharge pick-up unit for detecting charger or electrical appliance serviceability.
Background technology
In the production testing process of power supply electronic product, need to use the electric property of many checkout equipments to product to test, wherein conventional a kind of checkout equipment is exactly electronic load, by changing the parameter of electronic load, the output characteristics of power supply product can be detected, but in charger product, because its load is battery, to intactly detect a battery from being vented to the output characteristics being full of charger whole process, need to take long to and a complete charging process is done to battery, and the so long duration of charging obviously can make production efficiency low, and frequent test also can make the shorter battery life being used to charging, and internal resistance is increased, also the accuracy of test result is affected.
Summary of the invention
Based on this, be necessary to provide a kind of can the discharge and recharge pick-up unit of charge-discharge characteristic of simulated battery.
A kind of discharge and recharge pick-up unit, has the positive terminal and negative pole end that connect external charger or electrical appliance, comprising: power module, for providing sparking voltage, and is exported by described positive terminal and negative pole end by described sparking voltage; Discharge module, is connected between the cathode output end of described power module and described positive terminal, for controlling the electric discharge of power module; Releasing module, being connected between described positive terminal and negative pole end, for releasing from the electric current of external charger; And control module, connect described discharge module and to release module, for making described discharge module end when connecting charger, module of releasing described in making ON operation; Make described discharge module ON operation when connecting electrical appliance, module of releasing described in making is ended.
Wherein in an embodiment, described power module comprises transformer, rectifier bridge and filter capacitor group, described primary for connecting 220 volts of voltages, the input end of secondary and described rectifier bridge is connected, described rectification bridge output end connects filter capacitor group, exports described sparking voltage.
Wherein in an embodiment, described power module also comprises the voltage-stabilized power supply circuit described sparking voltage being converted into described control module required voltage, described voltage-stabilized power supply circuit comprises source of stable pressure, the first divider resistance and the second divider resistance, and described sparking voltage is converted to burning voltage and by flowing to described control module after the first divider resistance and the second divider resistance dividing potential drop by described source of stable pressure.
Wherein in an embodiment, described source of stable pressure comprises voltage-stabilizing device TL431, described voltage-stabilizing device TL431 anode is connected with described rectification bridge output end negative pole, negative electrode is connected with described rectification bridge output end positive pole by the first resistance, connect the first electric capacity between the reference pole of described voltage-stabilizing device TL431 and negative electrode, between the anode of described voltage-stabilizing device TL431 and negative electrode, also connect Capacitor banks; Between the anode that described first divider resistance and the second divider resistance are serially connected in described voltage-stabilizing device TL431 and negative electrode, and the first divider resistance be connected with the common port of the second divider resistance voltage-stabilizing device TL431 reference pole and as dividing potential drop output terminal.
Wherein in an embodiment, described discharge module comprises the first operational amplifier, the first switching tube and second switch pipe;
The input end of described first switching tube connects the cathode output end of described power module, output terminal connects described positive terminal by the first diode; The second resistance is also connected between the input end of described first switching tube and control end;
The input end of described second switch pipe connects by the 3rd resistance the control end of described first switching tube, output head grounding, control end to connect described first operational amplifier output terminal by the 4th resistance;
The inverting input of described first operational amplifier is connected to described positive terminal, the first adjustable resistance passing through series connection and the second adjustable resistance ground connection by the 5th resistance; Described first adjustable resistance is less than the degree of regulation of the second adjustable resistance;
The in-phase input end of described first operational amplifier is connected with described control module.
Wherein in an embodiment, described first switching tube is PNP type triode, and described second switch pipe is NPN type triode.
Wherein in an embodiment, described in module of releasing comprise the second operational amplifier and the 3rd switching tube;
The input end of described 3rd switching tube to be connected by the second diode of series connection described positive terminal, output head grounding, control end to connect described second operational amplifier output terminal by the 7th resistance with the 6th resistance; The negative pole of described second diode connects the input end of described 3rd switching tube;
Described 5th resistance of inverting input connection of described second operational amplifier is connected with described control module with the common port of the first adjustable resistance, in-phase input end.
Wherein in an embodiment, described 3rd switching tube is PNP type triode.
Wherein in an embodiment, described control module comprises the 8th resistance, the 9th resistance and the tenth resistance that are connected between described dividing potential drop output terminal and ground, also comprises the 3rd electric capacity with described tenth resistor coupled in parallel;
Described 8th resistance is connected with the inverting input of described second operational amplifier with the common port of the 9th resistance;
Described 9th resistance is connected with the in-phase input end of described first operational amplifier with the common port of the tenth resistance.
Wherein in an embodiment, described positive terminal or negative pole end connect the artifical resistance being used for simulated battery internal resistance.
Above-mentioned discharge and recharge pick-up unit, by control module controlled discharge module and release module conducting in different situations and cut-off, make discharge and recharge pick-up unit can the duty of simulated battery, thus can be applied to detect, reduce the use of battery, testing result is also more accurate.
Accompanying drawing explanation
Fig. 1 is the discharge and recharge pick-up unit module map of an embodiment;
Fig. 2 is the circuit theory diagrams of power module in Fig. 1;
Fig. 3 is the circuit theory diagrams of control module, discharge module and module of releasing in Fig. 1.
Embodiment
Be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, be the discharge and recharge pick-up unit module map of an embodiment.This discharge and recharge pick-up unit 10 has the positive terminal E+ and negative pole end E-that connect external charger or electrical appliance.Discharge and recharge pick-up unit 10, for simulated battery, both can connect electrical appliance, for electrical appliance is powered, again can connecting charger, and receive the electric current input of charger.
Discharge and recharge pick-up unit 10 comprises power module 100, control module 200, discharge module 300 and module 400 of releasing.Sparking voltage for providing sparking voltage, and is exported by positive terminal E+ and negative pole end E-by power module 100.Discharge module 300 is connected between the cathode output end 102 of power module 100 and positive terminal E+, for controlling the electric discharge of power module 100.Module of releasing 400 is connected between positive terminal E+ and negative pole end E-, for releasing from the electric current of external charger.Control module 200 connects discharge module 300 and module 400 of releasing, and for making discharge module 300 end when connecting charger, makes module 400 ON operation of releasing; Make discharge module 300 ON operation when connecting electrical appliance, the module 400 that makes to release is ended.
By control module 200 controlled discharge module 300 and release module 400 conducting in different situations and cut-off, make discharge and recharge pick-up unit 10 can the duty of simulated battery, thus can be applied to detect, reduce the use of battery, testing result is also more accurate.
As shown in Figure 2, power module 100 comprises transformer TF1, rectifier bridge D and filter capacitor group.Transformer TF1 is elementary, and for connecting 220 volts of voltages, being secondaryly connected with the input end of D rectifier bridge D, rectifier bridge D output terminal connects filter capacitor group, exports sparking voltage.Wherein filter capacitor group comprises electric capacity C1 in parallel and electric capacity C2.
Power module 100 also comprises voltage-stabilized power supply circuit sparking voltage being converted into control module required voltage, voltage-stabilized power supply circuit comprises source of stable pressure, the first divider resistance R2 and the second divider resistance R5, and sparking voltage is converted to burning voltage and by flowing to control module 200 after the first divider resistance R2 and the second divider resistance R5 dividing potential drop by source of stable pressure.
Source of stable pressure comprises voltage-stabilizing device TL431, voltage-stabilizing device TL431 anode is connected with rectifier bridge D negative pole of output end, negative electrode is connected with rectifier bridge D output head anode by the first resistance R1, the first electric capacity C3 is connected between the reference pole of voltage-stabilizing device TL431 and negative electrode, also connect Capacitor banks between the anode of voltage-stabilizing device TL431 and negative electrode, this Capacitor banks comprises electric capacity C4 in parallel and electric capacity C5.Between the anode that first divider resistance R2 and the second divider resistance R5 is serially connected in voltage-stabilizing device TL431 and negative electrode, and the first divider resistance R2 be connected with the common port of the second divider resistance R5 voltage-stabilizing device TL431 reference pole and as dividing potential drop output terminal.
As shown in Figure 3, discharge module 300 comprises the first operational amplifier U2A, the first switching tube Q1 and second switch pipe Q2.Wherein the first switching tube Q1 is PNP type triode, and second switch pipe Q2 is NPN type triode.
The input end (i.e. the emitter of PNP type triode) of the first switching tube Q1 connects the cathode output end of power module 100, output terminal (i.e. the collector of PNP type triode) connects positive terminal E+ by the first diode D2.The second resistance R9 is also connected between the input end of the first switching tube and control end (i.e. the base stage of PNP type triode).
The input end (i.e. the collector of NPN type triode) of second switch pipe Q2 connects by the 3rd resistance R10 the control end of the first switching tube Q1, output terminal (i.e. the emitter of NPN type triode) ground connection, control end (i.e. the base stage of NPN type triode) to connect the first operational amplifier U2A output terminal 1 by the 4th resistance R8.
The inverting input 2 of the first operational amplifier U2A is connected to positive terminal E+, the first adjustable resistance R13 passing through series connection and the second adjustable resistance R15 ground connection by the 5th resistance R6.First adjustable resistance R13 is less than the degree of regulation of the second adjustable resistance R15.The in-phase input end 3 of the first operational amplifier U2A is connected with control module 200.
Module of releasing 400 comprises the second operational amplifier U2B and the 3rd switching tube Q3.Wherein the 3rd switching tube Q3 is NPN type triode.
The input end (i.e. the collector of NPN type triode) of the 3rd switching tube Q3 to be connected by the second diode D3 of series connection positive terminal E+, output terminal (i.e. the emitter of NPN type triode) ground connection, control end (i.e. the base stage of NPN type triode) to connect the second operational amplifier U2B output terminal 7 by the 7th resistance R14 with the 6th resistance R11.The negative pole of the second diode D3 connects the input end of the 3rd switching tube Q3.The inverting input 6 of the second operational amplifier U2B connects the common port of the 5th resistance R6 and the first adjustable resistance R13, in-phase input end 5 is connected with control module.
Control module 200 comprises the 8th resistance R3, the 9th resistance R7 and the tenth resistance R4 that are connected between aforesaid dividing potential drop output terminal and ground, also comprises the three electric capacity C7 in parallel with the tenth resistance R4.8th resistance R3 is connected with the inverting input 6 of the second operational amplifier U2B with the common port of the 9th resistance R7; 9th resistance R7 is connected with the in-phase input end 3 of the first operational amplifier U2A with the common port of the tenth resistance R4.
Positive terminal E+ or negative pole end E-connects the artifical resistance R12 being used for simulated battery internal resistance.
The principle of work of circuit is below described.
220V civil power, after transformer TF1 step-down, through rectifier bridge D1 rectification, after inductance L 1, electric capacity C1, electric capacity C2 filtering, obtains 12V direct current.Voltage-stabilizing device U1(and TL431), resistance R1-R5, R7, C4, C5 form voltage-stabilized power supply circuit, it exports as stable 5V power supply.
The voltage exporting positive terminal E+ to feeds back to the first operational amplifier U2A and the second operational amplifier U2B after the 5th resistance R6 and the first adjustable resistance R13 dividing potential drop, thus control the conducting state of the first switching tube Q1 and the 3rd switching tube Q3, make output voltage stabilization in the value of setting.
Due to the existence of the 9th resistance R7, the first operational amplifier U2A can differ the pressure drop of the 9th resistance R7 with the reference voltage of the second operational amplifier U2B, the present embodiment with parameter shown in scheming for 120uV.Therefore, when the discharge and recharge pick-up unit 10 of the present embodiment is powered to outside electrical appliance, the 3rd switching tube Q3 is cut-off.And when external charger is charged to output terminal, the first switching tube Q1 is cut-off, its charging current is released by artifical resistance R12, the 6th resistance R11, the second diode D3 and the 3rd switching tube Q3, is equivalent to charging.After removing charger, discharge and recharge pick-up unit 10 can return to supplying power for outside state.Therefore the characteristic of discharge and recharge pick-up unit 10 is the same with battery.
First adjustable resistance R13 is used for adjusting the voltage of simulated battery, and when its resistance reduces, output end voltage raises; When its resistance raises, output end voltage reduces, and the second adjustable resistance R15 is used for finely tuning output voltage, is used as fine adjustment voltage.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a discharge and recharge pick-up unit, has the positive terminal and negative pole end that connect external charger or electrical appliance, it is characterized in that, comprising:
Power module, for providing sparking voltage, and is exported described sparking voltage by described positive terminal and negative pole end;
Discharge module, is connected between the cathode output end of described power module and described positive terminal, for controlling the electric discharge of power module;
Releasing module, being connected between described positive terminal and negative pole end, for releasing from the electric current of external charger; And
Control module, connects described discharge module and to release module, for making described discharge module end when connecting charger, and module of releasing described in making ON operation; Make described discharge module ON operation when connecting electrical appliance, module of releasing described in making is ended.
2. discharge and recharge pick-up unit according to claim 1, it is characterized in that, described power module comprises transformer, rectifier bridge and filter capacitor group, described primary for connecting 220 volts of voltages, the input end of secondary and described rectifier bridge is connected, described rectification bridge output end connects filter capacitor group, exports described sparking voltage.
3. discharge and recharge pick-up unit according to claim 2, it is characterized in that, described power module also comprises the voltage-stabilized power supply circuit described sparking voltage being converted into described control module required voltage, described voltage-stabilized power supply circuit comprises source of stable pressure, the first divider resistance and the second divider resistance, and described sparking voltage is converted to burning voltage and by flowing to described control module after the first divider resistance and the second divider resistance dividing potential drop by described source of stable pressure.
4. discharge and recharge pick-up unit according to claim 3, it is characterized in that, described source of stable pressure comprises voltage-stabilizing device TL431, described voltage-stabilizing device TL431 anode is connected with described rectification bridge output end negative pole, negative electrode is connected with described rectification bridge output end positive pole by the first resistance, connect the first electric capacity between the reference pole of described voltage-stabilizing device TL431 and negative electrode, between the anode of described voltage-stabilizing device TL431 and negative electrode, also connect Capacitor banks; Between the anode that described first divider resistance and the second divider resistance are serially connected in described voltage-stabilizing device TL431 and negative electrode, and the first divider resistance be connected with the common port of the second divider resistance voltage-stabilizing device TL431 reference pole and as dividing potential drop output terminal.
5. discharge and recharge pick-up unit according to claim 4, is characterized in that, described discharge module comprises the first operational amplifier, the first switching tube and second switch pipe;
The input end of described first switching tube connects the cathode output end of described power module, output terminal connects described positive terminal by the first diode; The second resistance is also connected between the input end of described first switching tube and control end;
The input end of described second switch pipe connects by the 3rd resistance the control end of described first switching tube, output head grounding, control end to connect described first operational amplifier output terminal by the 4th resistance;
The inverting input of described first operational amplifier is connected to described positive terminal, the first adjustable resistance passing through series connection and the second adjustable resistance ground connection by the 5th resistance; Described first adjustable resistance is less than the degree of regulation of the second adjustable resistance;
The in-phase input end of described first operational amplifier is connected with described control module.
6. discharge and recharge pick-up unit according to claim 5, is characterized in that, described first switching tube is PNP type triode, and described second switch pipe is NPN type triode.
7. discharge and recharge pick-up unit according to claim 5, is characterized in that, described in module of releasing comprise the second operational amplifier and the 3rd switching tube;
The input end of described 3rd switching tube to be connected by the second diode of series connection described positive terminal, output head grounding, control end to connect described second operational amplifier output terminal by the 7th resistance with the 6th resistance; The negative pole of described second diode connects the input end of described 3rd switching tube;
Described 5th resistance of inverting input connection of described second operational amplifier is connected with described control module with the common port of the first adjustable resistance, in-phase input end.
8. discharge and recharge pick-up unit according to claim 7, is characterized in that, described 3rd switching tube is PNP type triode.
9. discharge and recharge pick-up unit according to claim 7, it is characterized in that, described control module comprises the 8th resistance, the 9th resistance and the tenth resistance that are connected between described dividing potential drop output terminal and ground, also comprises the 3rd electric capacity with described tenth resistor coupled in parallel;
Described 8th resistance is connected with the inverting input of described second operational amplifier with the common port of the 9th resistance;
Described 9th resistance is connected with the in-phase input end of described first operational amplifier with the common port of the tenth resistance.
10. discharge and recharge pick-up unit according to claim 1, is characterized in that, described positive terminal or negative pole end connect the artifical resistance being used for simulated battery internal resistance.
CN201310386222.7A 2013-08-29 2013-08-29 Charging and discharging detecting device Pending CN104422833A (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105652045A (en) * 2016-01-28 2016-06-08 长沙云涯电子科技有限责任公司 Energy storage equipment detection device
CN106528481A (en) * 2016-12-29 2017-03-22 无锡华润矽科微电子有限公司 Discharge circuit integrated behind bus rectifier bridge at interior of slave chip
CN108761162A (en) * 2018-05-04 2018-11-06 四川斐讯信息技术有限公司 A kind of oscilloprobe control system and method
CN111579911A (en) * 2020-05-29 2020-08-25 广州思林杰网络科技有限公司 Program-controlled power supply device and control method thereof
CN112484307A (en) * 2020-12-24 2021-03-12 太原师范学院 Intelligent anti-corrosion electronic anode controller
CN112986635A (en) * 2019-12-18 2021-06-18 上海比亚迪有限公司 Programmable electronic load and battery testing device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105652045A (en) * 2016-01-28 2016-06-08 长沙云涯电子科技有限责任公司 Energy storage equipment detection device
CN105652045B (en) * 2016-01-28 2018-07-13 长沙云涯电子科技有限责任公司 A kind of energy storage device detection device
CN106528481A (en) * 2016-12-29 2017-03-22 无锡华润矽科微电子有限公司 Discharge circuit integrated behind bus rectifier bridge at interior of slave chip
CN106528481B (en) * 2016-12-29 2021-10-15 华润微集成电路(无锡)有限公司 Bus rectifier bridge post-discharge circuit integrated in slave chip
CN108761162A (en) * 2018-05-04 2018-11-06 四川斐讯信息技术有限公司 A kind of oscilloprobe control system and method
CN112986635A (en) * 2019-12-18 2021-06-18 上海比亚迪有限公司 Programmable electronic load and battery testing device
CN111579911A (en) * 2020-05-29 2020-08-25 广州思林杰网络科技有限公司 Program-controlled power supply device and control method thereof
CN111579911B (en) * 2020-05-29 2022-02-08 广州思林杰科技股份有限公司 Program-controlled power supply device and control method thereof
CN112484307A (en) * 2020-12-24 2021-03-12 太原师范学院 Intelligent anti-corrosion electronic anode controller
CN112484307B (en) * 2020-12-24 2024-03-26 太原师范学院 Intelligent anti-corrosion electronic anode controller

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