CN213213148U - Lithium battery activation dual-enable circuit - Google Patents
Lithium battery activation dual-enable circuit Download PDFInfo
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- CN213213148U CN213213148U CN202022106558.1U CN202022106558U CN213213148U CN 213213148 U CN213213148 U CN 213213148U CN 202022106558 U CN202022106558 U CN 202022106558U CN 213213148 U CN213213148 U CN 213213148U
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- resistor
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- management system
- diode
- lithium battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a lithium cell activation is two enabling circuit, including resistance R1, R2, R3, R4, R5, diode D1, toggle switch K1, triode Q1 and triode Q2; one end of the R1 is connected with the charger input voltage DC _ IN; the other end of the R1 is connected with one end of the R2 and the base electrode of the triode Q1; an emitter of the Q1 is connected with the other end of the R2 and one end of the R5, and is connected with the common ground end GND of the power management system; the collector of Q1 is connected to one end of R4; the other end of the R4 is connected with one end of the R3 and the base electrode of the triode Q2; an emitter of the Q2 is connected with the other end of the R3 and one end of the toggle switch K1 and is connected with a power supply end VCC of the power management system; the other end of the K1 is connected with the anode of a diode D1; the cathode of the D1 is connected with the other end of the R5 and the collector of the Q2, and is connected with an enabling control end P _ EN of the power management system. The utility model discloses a toggle switch and charger dual mode enable the activation to lithium battery management system.
Description
Technical Field
The utility model relates to an electronic product application field with mains operated (charging), especially a two enabling circuit of lithium cell activation.
Background
In the lithium battery management system, the standby power consumption is an important component, the low-power-consumption standby mode can enable the lithium battery pack to have longer storage time and good user experience, and meanwhile, the cycle number of the battery can be reduced in the effective time, and the service life of the lithium battery is prolonged. When the lithium battery enters a low-power-consumption standby mode, the lithium battery management system needs to be activated and enabled through an enabling circuit.
At present, a traditional enabling activation circuit is activated by inputting a continuous level signal through a key switch, the activation mode is monotonous, software logic is complicated, and the time for inputting a signal by a man-machine is long.
Disclosure of Invention
In view of this, the utility model aims at providing a lithium cell activation is two to enable circuit can carry out the activation to lithium cell management system through toggle switch and charger dual mode.
The utility model discloses a following scheme realizes: a lithium battery activation dual-enable circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a diode D1, a toggle switch K1, a first triode Q1 and a second triode Q2; one end of the first resistor R1 is connected to an external charger input voltage DC _ IN, and the other end of the first resistor R1 is connected to one end of the second resistor R2 and the base of the first transistor Q1, respectively; an emitter of the first triode Q1 is respectively connected with the other end of the second resistor R2 and one end of the fifth resistor R5, and is also connected with a common ground GND of an external power management system; a collector of the first triode Q1 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to one end of the third resistor R3 and a base of the second triode Q2, respectively; an emitting electrode of the second triode Q2 is respectively connected with the other end of the third resistor R3 and one end of the toggle switch K1, and is simultaneously connected with a power supply end VCC of an external power supply management system; the other end of the toggle switch K1 is connected with the anode of the diode D1, and the cathode of the diode D1 is respectively connected with the other end of the fifth resistor R5 and the collector of the second triode Q2, and is simultaneously connected to an enable control end P _ EN of an external power management system.
Further, the first transistor Q1 can optionally include an NPN transistor or an N-channel fet, and the second transistor Q2 can optionally include a PNP transistor or a P-channel fet.
Further, the diode D1 is a schottky diode.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses can carry out the ability activation to lithium battery management system through toggle switch and charger dual mode to set up two kinds of activation modes into the relation with through hardware logic. The user has multiple selection modes when the activation step is enabled in the operation, and two activation modes are completed only by one simple action operation without continuous human-computer signal input, so that the operation is simple and rapid.
Drawings
Fig. 1 is a schematic circuit diagram according to an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1, the present embodiment provides a lithium battery activation dual-enable circuit, which includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a diode D1, a toggle switch K1, a first triode Q1, and a second triode Q2; one end of the first resistor R1 is connected to an external charger input voltage DC _ IN, and the other end of the first resistor R1 is connected to one end of the second resistor R2 and the base of the first transistor Q1, respectively; an emitter of the first triode Q1 is respectively connected with the other end of the second resistor R2 and one end of the fifth resistor R5, and is also connected with a common ground GND of an external power management system; a collector of the first triode Q1 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to one end of the third resistor R3 and a base of the second triode Q2, respectively; an emitting electrode of the second triode Q2 is respectively connected with the other end of the third resistor R3 and one end of the toggle switch K1, and is simultaneously connected with a power supply end VCC of an external power supply management system; the other end of the toggle switch K1 is connected with the anode of the diode D1, and the cathode of the diode D1 is respectively connected with the other end of the fifth resistor R5 and the collector of the second triode Q2, and is simultaneously connected to an enable control end P _ EN of an external power management system.
In this embodiment, the first transistor Q1 can optionally include an NPN transistor or an N-channel fet, and the second transistor Q2 can optionally include a PNP transistor or a P-channel fet.
In this embodiment, the diode D1 is a schottky diode.
In the present embodiment, the circuit is in an enable state when the power management system enable terminal P _ EN is high, and in a standby low power consumption state when the power management system enable terminal P _ EN is low. The toggle switch K1 is used for inputting high level signals to the power management system; the fifth resistor R5 acts as a pull-down for P _ EN; the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the first triode Q1 and the second triode Q2 are combined to convert the level of an input control signal; the diode D1 serves as a level isolation.
When the K1 is disconnected and the charger is not accessed, the enabling end P _ EN is pulled down to a low level through the fifth resistor R5, and at the moment, the power management system enters a standby low power consumption state;
when K1 is closed and the charger is not accessed, the voltage of the enabling end P _ EN is VCC-0.7V and is high level, and the power management system enters an enabling activation state at the moment;
when the charger is switched in, after voltage division is carried out through the first resistor R1 and the second resistor R2, the base electrode of the first triode Q1 is at a high level, the first triode Q1 is in a conducting state, the collector electrode of the first triode Q1 is at a low level, after voltage division is carried out through the third resistor R3 and the fourth resistor R4, the base electrode of the second triode Q2 is lower than VCC voltage, the second triode Q2 is in a conducting state, no matter whether K1 is closed or disconnected at the moment, the P _ EN voltage is at a VCC high level, the power management system enters an enabling and activating state;
when the charger is not connected, the base of the first triode Q1 is pulled down to a low level by the second resistor R2, the first triode Q1 is in a cut-off state, the base of the second triode Q2 is pulled up by the third resistor R3 to be equal to VCC voltage, the second triode Q2 is also in a cut-off state, and the voltage state of P _ EN is determined by the state of K1 at this time.
Preferably, the present embodiment enables the user to have multiple selection modes when operating the enabling activation step, and both the two activation modes only need to be completed by a simple action operation as long as one of the two activation modes is valid and can activate the battery management system, and the two activation modes are set to be in a relation with each other through hardware logic. The two activation modes are completed by only one simple action operation without continuous human-computer signal input, and the operation is simple and quick. The circuit has the characteristics of low construction cost and strong anti-interference capability.
It is worth mentioning that the utility model protects a hardware structure, as for the control method does not require protection. The above is only a preferred embodiment of the present invention. However, the present invention is not limited to the above embodiments, and any equivalent changes and modifications made according to the present invention do not exceed the scope of the present invention, and all belong to the protection scope of the present invention.
Claims (3)
1. A lithium battery activation dual-enable circuit is characterized in that: the circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a diode D1, a toggle switch K1, a first triode Q1 and a second triode Q2; one end of the first resistor R1 is connected to an external charger input voltage DC _ IN, and the other end of the first resistor R1 is connected to one end of the second resistor R2 and the base of the first transistor Q1, respectively; an emitter of the first triode Q1 is respectively connected with the other end of the second resistor R2 and one end of the fifth resistor R5, and is also connected with a common ground GND of an external power management system; a collector of the first triode Q1 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to one end of the third resistor R3 and a base of the second triode Q2, respectively; an emitting electrode of the second triode Q2 is respectively connected with the other end of the third resistor R3 and one end of the toggle switch K1, and is simultaneously connected with a power supply end VCC of an external power supply management system; the other end of the toggle switch K1 is connected with the anode of the diode D1, and the cathode of the diode D1 is respectively connected with the other end of the fifth resistor R5 and the collector of the second triode Q2, and is simultaneously connected to an enable control end P _ EN of an external power management system.
2. A lithium battery activation dual-enable circuit as claimed in claim 1, wherein: the first transistor Q1 can optionally include an NPN transistor or an N-channel fet, and the second transistor Q2 can optionally include a PNP transistor or a P-channel fet.
3. A lithium battery activation dual-enable circuit as claimed in claim 1, wherein: the diode D1 is a schottky diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106558.1U CN213213148U (en) | 2020-09-23 | 2020-09-23 | Lithium battery activation dual-enable circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106558.1U CN213213148U (en) | 2020-09-23 | 2020-09-23 | Lithium battery activation dual-enable circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213213148U true CN213213148U (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022106558.1U Active CN213213148U (en) | 2020-09-23 | 2020-09-23 | Lithium battery activation dual-enable circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213213148U (en) |
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2020
- 2020-09-23 CN CN202022106558.1U patent/CN213213148U/en active Active
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