CN108957329A - Energy-storage type energy-saving battery charging and discharging tests circuit - Google Patents
Energy-storage type energy-saving battery charging and discharging tests circuit Download PDFInfo
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- CN108957329A CN108957329A CN201810264265.0A CN201810264265A CN108957329A CN 108957329 A CN108957329 A CN 108957329A CN 201810264265 A CN201810264265 A CN 201810264265A CN 108957329 A CN108957329 A CN 108957329A
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Abstract
The invention discloses a kind of energy-storage type energy-saving battery charging and dischargings to test circuit, comprising: AC-DC switch power module, MCU control module, metal-oxide-semiconductor Q1, energy storage battery BTS, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, inductance L1, resistance R1, battery BT；When battery BT charges, under MCU control module control, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q3 do not work, energy storage battery BTS charges to BT via metal-oxide-semiconductor Q2, inductance L1, resistance R1, when metal-oxide-semiconductor Q2 ends, by inductance L1, resistance R1, battery BT, diode D3 afterflow, a step down switching regulator circuit is formed.The present invention is a kind of energy-storage type energy-saving battery charging and discharging test circuit for improving charge and discharge efficiency.
Description
Technical field
The present invention relates to electric power energy-saving environment protection field more particularly to a kind of energy-storage type energy-saving electricity for improving charge and discharge efficiency
Pond charge-discharge test circuit.
Background technique
Before rechargeable battery (rechargeable battery or battery pack, such as lithium battery, nickel-metal hydride battery etc.) factory, production plant
Can charge and discharge test be carried out to it, to detect its performance.In the prior art, to circuit diagram such as Fig. 1 institute of battery charging
Show, AC-DC switch power module is charged by Q1 and R1 to BT, and wherein the electricity of R1 is flowed through in the detection of cell voltage current detection module
Stream；Circuit diagram to battery discharge is as shown in Fig. 2, BT is discharged by R1 and Q2；Cell voltage current detection module
The electric current and BT voltage of R1 is flowed through in detection, can carry out charge and discharge voltage, electric current and time etc. to BT by MCU control module
Control.
The battery charge-discharge circuit of the prior art is the battery charge-discharge circuit of non-economized, and non-economized disadvantage:
Efficiency is down to 50% or so when charging, and 100% electrical power conversion loses for heat waste when electric discharge.
Therefore, a kind of energy-storage type energy-saving battery charging and discharging test circuit for improving charge and discharge efficiency is needed.
Summary of the invention
The object of the present invention is to provide a kind of energy-storage type energy-saving battery charging and dischargings for improving charge and discharge efficiency to test circuit.
To achieve the goals above, technical solution provided by the invention are as follows: a kind of energy-storage type energy-saving battery charging and discharging is provided
Test circuit, comprising: AC-DC switch power module, MCU control module, metal-oxide-semiconductor Q1, energy storage battery BTS, metal-oxide-semiconductor Q2, metal-oxide-semiconductor
Q3, inductance L1, resistance R1 survey module, battery BT；
When battery BT charges, under MCU control module control, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q3 do not work, energy storage battery BTS warp
It is charged by metal-oxide-semiconductor Q2, inductance L1, resistance R1 to BT, when metal-oxide-semiconductor Q2 ends, by inductance L1, resistance R1, battery BT, diode D3
Afterflow forms a step down switching regulator circuit.
It further include cell voltage current detection module, cell voltage current detection module is for detecting cell voltage and electric current
Information simultaneously feeds back to MCU control module.
It further include BTS detection module, when BTS detection module detects that energy storage battery BTS voltage drops to 7.2V, automatically
It is charged by diode D1 to energy storage battery BTS by AC-DC switch power module output DC voltage VDC, guarantees energy storage battery
BTS has enough electric power to charge battery BT.
MCU module controls the conducting and cut-off of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3 by PWM control module.
When battery BT discharges: under MCU control module control, metal-oxide-semiconductor Q2 does not work, and battery BT is via resistance R1, inductance
L1, metal-oxide-semiconductor Q3 conducting, inductance L1 energy storage, when Q3 cut-off, inductance L1 releases energy, and battery BT is through resistance R1, inductance L1, two
Pole pipe D2 to energy storage battery BTS charges to energy storage battery BTS, forms a booster switcher power circuit；At this point, battery BT
Discharge electricity amount is by this circuit storage on BTS.
When energy storage battery BTS voltage rises to 8.4V, under MCU control module control, metal-oxide-semiconductor Q1 is in amplification shape
State discharges to energy storage battery BTS, guarantees that battery BT can be with continuous discharge.
MCU module controls the conducting and cut-off of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3 by PWM control module.
Compared with prior art, due to being tested in circuit in energy-storage type energy-saving battery charging and discharging of the present invention, rechargeable battery
When charging: different from traditional non-economized charging circuit, the input of rechargeable electrical energy is provided by energy-storage battery first, works as energy storage
When battery capacity deficiency, just it is automatically replenished by alternating current via AC-DC (AC-DC conversion circuit).When rechargeable battery discharges:
Different from traditional non-economized discharge circuit, when electric discharge, converts electrical energy into heat and loses in vain；Or it is different from grid-connected
The energy-saving discharge circuit of formula, via multi-stage transformation circuit when electric discharge, by electric energy feedback to power grid.The present invention is by rechargeable battery
The energy of electric discharge is converted by single-stage DC-DC (DC-DC conversion circuit) into energy-storage battery.With respect to the above two, not only
The electric energy recycling discharged when can be by chargeable cell test, more nationality greatly promote the feedback efficiency of electric energy by succinct circuit.
Through the following description and in conjunction with the attached drawings, the present invention will become more fully apparent, these attached drawings are used to explain the present invention
Embodiment.
Detailed description of the invention
Fig. 1 show the charging circuit schematic diagram of the rechargeable battery of the prior art.
Fig. 2 show the discharge circuit schematic diagram of the rechargeable battery of the prior art.
Fig. 3 show the charging circuit schematic diagram of energy-storage type energy-saving battery charging and discharging test circuit of the present invention.
Fig. 4 show the discharge circuit schematic diagram of energy-storage type energy-saving battery charging and discharging test circuit of the present invention.
Specific embodiment
The embodiment of the present invention described referring now to the drawings, similar element numbers represent similar element in attached drawing.Such as
It is upper described, as shown in Fig. 2, energy-storage type energy-saving battery charging and discharging provided in an embodiment of the present invention tests circuit, comprising: AC-DC is opened
Powered-down source module, MCU control module, metal-oxide-semiconductor Q1, energy storage battery BTS, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, inductance L1, resistance R1, battery
BT；
When battery BT charges, under MCU control module control, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q3 do not work, energy storage battery BTS warp
It is charged by metal-oxide-semiconductor Q2, inductance L1, resistance R1 to BT, when metal-oxide-semiconductor Q2 ends, by inductance L1, resistance R1, battery BT, diode D3
Afterflow forms a step down switching regulator circuit.It should be noted that before battery BT charging, it is assumed that energy storage battery BTS
It is electrification, therefore, is charged first by energy storage battery BTS to battery BT.The grid of MCU control module and metal-oxide-semiconductor Q1 connect
It connects, to control the conducting and cut-off of metal-oxide-semiconductor Q1.
In one embodiment, as shown in Fig. 2, further include cell voltage current detection module, the cell voltage electric current inspection
Module is surveyed for detecting cell voltage and current information and feeding back to MCU control module.Specifically, cell voltage current detecting mould
Block is connected in parallel on the two sides resistance R1, and connect with MCU control module.
In one embodiment, as shown in Fig. 2, further including BTS detection module, BTS detection module is connected to energy storage battery BTS
Output end, for detecting the output voltage of energy storage battery BTS, and feed back to MCU control module, battery BT charge when, BTS inspection
Module work is surveyed, when BTS detection module detects that energy storage battery BTS voltage drops to 7.2V, automatically by AC-DC Switching Power Supply
Module exports DC voltage VDC and is charged by diode D1 to energy storage battery BTS, guarantees that energy storage battery BTS has enough electric power
It charges to battery BT.
In above-described embodiment, MCU module controls the conducting and cut-off of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3 by PWM control module.
PWM control module is connect with metal-oxide-semiconductor Q2 with metal-oxide-semiconductor Q3 simultaneously, and PWM control module is PWM HF switch, frequency > 20KHz.
In addition, diode D2 and diode D3, diode D2 can also be separately connected in the source electrode and drain electrode of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3
Play the role of that electric current is allowed unidirectionally to pass through with diode D3.In practical application, diode D2: can be the parasitism two of metal-oxide-semiconductor Q2
Pole pipe, or additional diode；Diode D3: can be the parasitic diode of metal-oxide-semiconductor Q3, or additional two
Pole pipe.
In one embodiment, as shown in figure 3, when battery BT discharges: under MCU control module control, metal-oxide-semiconductor Q2 not work
Making, battery BT is connected via resistance R1, inductance L1, metal-oxide-semiconductor Q3, inductance L1 energy storage, and when Q3 cut-off, inductance L1 releases energy,
Battery BT charges to energy storage battery BTS, forms a boost type through resistance R1, inductance L1, diode D2 to energy storage battery BTS
Switching power circuit；At this point, battery BT discharge electricity amount is by this circuit storage on BTS.
In one embodiment, as shown in figure 3, when energy storage battery BTS voltage rises to 8.4V, in MCU control module control
Under system, metal-oxide-semiconductor Q1 is in magnifying state, discharges energy storage battery BTS, guarantees that battery BT can be with continuous discharge.
In above-described embodiment, MCU module controls the conducting and cut-off of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3 by PWM control module.
PWM control module is connect with metal-oxide-semiconductor Q2 with metal-oxide-semiconductor Q3 simultaneously, and PWM control module is PWM HF switch, frequency > 20KHz.
In addition, diode D2 and diode D3, diode D2 can also be separately connected in the source electrode and drain electrode of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3
Play the role of that electric current is allowed unidirectionally to pass through with diode D3.In practical application, diode D2: can be the parasitism two of metal-oxide-semiconductor Q2
Pole pipe, or additional diode；Diode D3: can be the parasitic diode of metal-oxide-semiconductor Q3, or additional two
Pole pipe.
Some important work when energy-storage type energy-saving battery charging and discharging test circuit of the present invention works normally are described below
Parameter:
1. (V-BTS) > (V-BT), energy-storage battery voltage have to be larger than mesuring battary voltage；
The nominal voltage of (2. VDC)-(V-D1)=(V-BTS), i.e. 7.2V in this example；This is best applications, even if:
(VDC)-(V-D1) > (V-BTS) discharge prevention voltage, i.e. 6V in this example；And
(VDC)-(V-D1) < (V-BTS) charge protection voltage, i.e. 8.4V in this example；Circuit can work, and not exist only
Best Point.
But following situations circuit is by cisco unity malfunction:
(VDC)-(V-D1) < (V-BTS) discharge prevention voltage, i.e. 6V in this example；Or (VDC)-(V-D1) > (V-
BTS charge protection voltage), i.e. 8.4V in this example.
Definition:
BTS: energy-storage battery (group), it can be with charge and discharge；
BT: (charge and discharge) battery (group) to be tested；
The both end voltage of V-BTS:BTS, for convenience of description, it is assumed that nominal voltage 7.2V, discharge prevention voltage are 6V, are filled
Electric protection voltage is 8.4V；
The both end voltage of V-BT:BT, for convenience of description, it is assumed that nominal voltage 3.6V, discharge prevention voltage are 3V, charging
Protection voltage is 4.2V；
V-D1: diode D1 forward conduction voltage is for convenience of description, it is assumed that is 0.6V；
VDC:AC-DC switch power source output voltage, for convenience of description, it is assumed that be 7.8V；
D2: can be the parasitic diode of Q2, or additional diode；
D3: can be the parasitic diode of Q3, or additional diode.
The above disclosure is only a preferred embodiment of the invention, cannot limit the right of the present invention with this certainly
Range, therefore according to equivalent variations made by scope of the present invention patent, it is still within the scope of the present invention.
Claims (7)
1. a kind of energy-storage type energy-saving battery charging and discharging tests circuit characterized by comprising AC-DC switch power module, MCU
Control module, metal-oxide-semiconductor Q1, energy storage battery BTS, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, inductance L1, resistance R1, battery BT；
When battery BT charges, under MCU control module control, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q3 do not work, and energy storage battery BTS is via MOS
Pipe Q2, inductance L1, resistance R1 charge to BT, when metal-oxide-semiconductor Q2 ends, by inductance L1, resistance R1, battery BT, diode D3 afterflow,
Form a step down switching regulator circuit.
2. energy-storage type energy-saving battery charging and discharging as described in claim 1 tests circuit, which is characterized in that further include cell voltage
Current detection module, cell voltage current detection module is for detecting cell voltage and current information and feeding back to MCU control mould
Block.
3. energy-storage type energy-saving battery charging and discharging as described in claim 1 tests circuit, which is characterized in that further include BTS detection
Module, it is automatically defeated by AC-DC switch power module when BTS detection module detects that energy storage battery BTS voltage drops to 7.2V
DC voltage VDC charges to energy storage battery BTS by diode D1 out, guarantees that energy storage battery BTS has enough electric power to battery
BT charging.
4. energy-storage type energy-saving battery charging and discharging as described in claim 1 tests circuit, which is characterized in that MCU module passes through PWM
The conducting and cut-off of control module control metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3.
5. energy-storage type energy-saving battery charging and discharging as described in claim 1 tests circuit, which is characterized in that when battery BT discharges:
Under MCU control module control, metal-oxide-semiconductor Q2 does not work, and battery BT is connected via resistance R1, inductance L1, metal-oxide-semiconductor Q3, inductance L1
Energy storage, when Q3 cut-off when, inductance L1 releases energy, battery BT through resistance R1, inductance L1, diode D2 to energy storage battery BTS, it is right
Energy storage battery BTS charging, forms a booster switcher power circuit, at this point, battery BT discharge electricity amount passes through this circuit storage
On energy storage battery BTS.
6. energy-storage type energy-saving battery charging and discharging as claimed in claim 5 tests circuit, which is characterized in that as energy storage battery BTS
When voltage rises to 8.4V, under MCU control module control, metal-oxide-semiconductor Q1 is in magnifying state, discharges energy storage battery BTS, protects
Demonstrate,proving battery BT can be with continuous discharge.
7. energy-storage type energy-saving battery charging and discharging as claimed in claim 5 tests circuit, which is characterized in that MCU module passes through PWM
The conducting and cut-off of control module control metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264265.0A CN108957329A (en) | 2018-03-28 | 2018-03-28 | Energy-storage type energy-saving battery charging and discharging tests circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264265.0A CN108957329A (en) | 2018-03-28 | 2018-03-28 | Energy-storage type energy-saving battery charging and discharging tests circuit |
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| Publication Number | Publication Date |
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| CN108957329A true CN108957329A (en) | 2018-12-07 |
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| CN201810264265.0A Pending CN108957329A (en) | 2018-03-28 | 2018-03-28 | Energy-storage type energy-saving battery charging and discharging tests circuit |
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| CN2700893Y (en) * | 2004-02-06 | 2005-05-18 | 毛广甫 | Power control apparatus for battery testing |
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| CN202267739U (en) * | 2011-09-09 | 2012-06-06 | 北京索英电气技术有限公司 | Storage battery charge/discharge tester |
| CN102624056A (en) * | 2012-03-29 | 2012-08-01 | 青岛易特优电子有限公司 | Charge-discharge control device for electric automobile capacitor |
| CN103855743A (en) * | 2012-11-30 | 2014-06-11 | 西安晶捷电子技术有限公司 | Novel storage battery charging and discharging ageing circuit |
| CN204334091U (en) * | 2015-01-08 | 2015-05-13 | 江苏祺创灯饰制造有限公司 | Accumulator charging/discharging system |
| CN104753146A (en) * | 2015-04-22 | 2015-07-01 | 青岛大学 | Energy feed type variable-constant-current and positive-negative-pulse fast charging device and method |
-
2018
- 2018-03-28 CN CN201810264265.0A patent/CN108957329A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2700893Y (en) * | 2004-02-06 | 2005-05-18 | 毛广甫 | Power control apparatus for battery testing |
| US20110187319A1 (en) * | 2006-06-26 | 2011-08-04 | Lam Dat D | Conservation of electrical energy and electro-magnetic power in battery charger with ac drive |
| CN202267739U (en) * | 2011-09-09 | 2012-06-06 | 北京索英电气技术有限公司 | Storage battery charge/discharge tester |
| CN102361101A (en) * | 2011-09-30 | 2012-02-22 | 东莞市冠佳电子设备有限公司 | Method for energy-saving charging and discharging of cells and system for testing energy-saving charging and discharging of cells |
| CN102624056A (en) * | 2012-03-29 | 2012-08-01 | 青岛易特优电子有限公司 | Charge-discharge control device for electric automobile capacitor |
| CN103855743A (en) * | 2012-11-30 | 2014-06-11 | 西安晶捷电子技术有限公司 | Novel storage battery charging and discharging ageing circuit |
| CN204334091U (en) * | 2015-01-08 | 2015-05-13 | 江苏祺创灯饰制造有限公司 | Accumulator charging/discharging system |
| CN104753146A (en) * | 2015-04-22 | 2015-07-01 | 青岛大学 | Energy feed type variable-constant-current and positive-negative-pulse fast charging device and method |
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Application publication date: 20181207 |
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