CN219499033U - Standby power storage circuit for three-section nickel-hydrogen battery - Google Patents
Standby power storage circuit for three-section nickel-hydrogen battery Download PDFInfo
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- CN219499033U CN219499033U CN202320430859.0U CN202320430859U CN219499033U CN 219499033 U CN219499033 U CN 219499033U CN 202320430859 U CN202320430859 U CN 202320430859U CN 219499033 U CN219499033 U CN 219499033U
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- control circuit
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- 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
Abstract
The utility model discloses a standby power storage circuit of three nickel-metal hydride batteries, which comprises a main control circuit, a battery charge-discharge control circuit, a DC voltage detection circuit, a buzzer control circuit and a voltage reduction circuit, wherein the battery charge-discharge control circuit, the DC voltage detection circuit and the buzzer control circuit are electrically connected with the main control circuit, the voltage reduction circuit is electrically connected with the battery charge-discharge control circuit, and the main control circuit comprises a main control chip U2, and a resistor R3, a resistor R6 and a resistor R8 which are respectively led out by pins of the main control chip U2; according to the utility model, after three nickel-hydrogen batteries are connected in series, the voltage of a single battery can be controlled, and after the power is cut off, the power can be supplied to the main control chip U2 through the standby power supply, so that the situation that data cannot be stored due to sudden power cut is avoided.
Description
Technical Field
The utility model particularly relates to a standby power storage circuit of three nickel-hydrogen batteries.
Background
The nickel-hydrogen battery is synthesized by hydrogen ions and metallic nickel, and has the advantages of larger energy density, longer service life, no pollution to the environment and the like compared with a nickel-chromium battery. Nickel-metal hydride batteries are commonly used in consumer electronics as a type of rechargeable battery.
The single nickel-metal hydride battery is convenient to control during charging and discharging, but after a plurality of nickel-metal hydride batteries are connected in series, the charging and discharging are difficult to control, and the following problems can occur: 1. when the power supply is disconnected, no standby battery is continuously provided for the chip to work, and a power-off alarm cannot be sent out to prompt a user; 2. the related data is easy to be stored in time because of external sudden power failure.
Disclosure of Invention
In view of the above, the utility model aims to provide a standby power storage circuit of three nickel-metal hydride batteries, which is convenient to control, and can supply power to a main control chip U2 through a standby power supply after power failure, so that the situation that data cannot be stored due to sudden power failure is avoided.
In order to solve the problems, the utility model adopts the following technology and method:
the standby power storage circuit of the three-section nickel-hydrogen battery comprises a main control circuit, a battery charge-discharge control circuit, a DC voltage detection circuit and a buzzer control circuit which are electrically connected with the main control circuit, and a voltage reduction circuit which is electrically connected with the battery charge-discharge control circuit, wherein the main control circuit comprises a main control chip U2, and a resistor R3, a resistor R6 and a resistor R8 which are respectively led out by pins of the main control chip U2.
Preferably, the main control chip U2 is connected with a buzzer control circuit through a resistor R3, is connected with a battery charge and discharge control circuit through a resistor R6, and is connected with a DC voltage detection circuit through a resistor R8.
Preferably, the battery charge-discharge control circuit comprises a storage battery BAT1, a diode D2, a resistor R5, a triode Q3, a MOS tube Q2 and a diode D3.
Preferably, a buzzer BUZZZR is arranged in the buzzer control circuit.
Preferably, the step-down circuit includes a voltage stabilizing circuit chip U1, a resistor R1 connected to the voltage stabilizing circuit chip U1, and a diode D1 connected to the resistor R1.
The utility model has the beneficial effects that:
1. when the power supply is disconnected, the standby battery is continuously provided for the chip to work, and signals such as power-off alarm and the like can be sent out;
2. related data cannot be stored in time because of external sudden power failure;
3: the circuit is relatively simple and will be more stable.
Drawings
Fig. 1 is a diagram of a backup power storage circuit for a three-cell nickel-metal hydride battery according to the present utility model.
Detailed Description
The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.
In this embodiment, it should be understood that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "top", "right", "left", "upper", "back", "middle", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
In this embodiment, if not specifically described, the members may be connected or fixed by bolts, pins, or the like, which are commonly used in the prior art, and therefore, the details thereof will not be described in this embodiment.
The utility model provides a reserve power storage circuit of three nickel-metal hydride batteries, as shown in fig. 1, includes main control circuit, with main control circuit electric connection's battery charge-discharge control circuit, DC voltage detection circuit and buzzer control circuit, and with battery charge-discharge control circuit electric connection's step-down circuit, main control circuit includes main control chip U2, and resistance R3, resistance R6 and the resistance R8 that derive respectively by main control chip U2's pin. The main control chip U2 is connected with a buzzer control circuit through a resistor R3, a battery charge and discharge control circuit through a resistor R6 and a DC voltage detection circuit through a resistor R8. The battery charge-discharge control circuit comprises a storage battery BAT1, a diode D2, a resistor R5, a triode Q3, a MOS tube Q2 and a diode D3. The buzzer control circuit is provided with a buzzer BUZZZR, and the buzzer control circuit can be controlled by the main control chip U2 to send out power failure warning sounds when the storage battery BAT1 is powered down. The voltage reduction circuit comprises a voltage stabilizing circuit chip U1, a resistor R1 connected with the voltage stabilizing circuit chip U1 and a diode D1 connected with the resistor R1, wherein VCC is an externally input DC12V power supply, and is reduced to be a 5V power supply through the diode D1, the resistor R1 and the voltage stabilizing circuit chip U1 to supply power to the main control chip U2, namely the VCC used by the main control chip U2 is a reduced 5V power supply under the normal power supply condition.
Referring to fig. 1, battery BAT1 is charged at normal power-on: the 5V power supply for VCC charges the 3-cell nickel-metal hydride battery BAT1 through a diode D4, a resistor R5, and the diode D4. Battery BAT1 discharges outwards when abnormal power is lost: the 13 th pin of the main control chip U2 always outputs high level to enable the triode Q3 to be always started, and the triode Q3 is started to enable the MOS tube Q2 to be also started. At this time, the battery BAT1 supplies power to the VCC power supply through the MOS tube Q2 and the diode D3, so that the main control chip U2 can continuously use the power after losing the external power supply, and at this time, the main control chip U2 can control to send out warning information such as power failure warning (for example, control the buzzer BUZZZR warning reminding). When the battery electric quantity is discharged and the main control chip U2 cannot be maintained to work, the 13 th pin of the main control chip U2 cannot output high level to enable the triode Q3 to be closed, the triode Q3 is closed to enable the MOS tube Q2 to be closed, at the moment, the battery cannot be continuously discharged, and the battery is protected by low voltage.
The utility model has the beneficial effects that:
1. when the power supply is disconnected, the standby battery is continuously provided for the chip to work, and signals such as power-off alarm and the like can be sent out;
2. related data cannot be stored in time because of external sudden power failure;
3: the circuit is relatively simple and will be more stable.
The foregoing is merely illustrative of the present utility model, and the scope of the utility model is not limited thereto, but is intended to cover any variations or alternatives not suggested by the applicant's knowledge, and accordingly, the scope of the utility model is to be determined by the appended claims.
Claims (5)
1. A three-section nickel-hydrogen battery standby power storage circuit is characterized in that: the battery charging and discharging control circuit, the DC voltage detection circuit and the buzzer control circuit are electrically connected with the main control circuit, and the voltage reduction circuit is electrically connected with the battery charging and discharging control circuit, wherein the main control circuit comprises a main control chip U2, and a resistor R3, a resistor R6 and a resistor R8 respectively led out by pins of the main control chip U2.
2. The three-battery backup power storage circuit of claim 1, wherein: the main control chip U2 is connected with a buzzer control circuit through a resistor R3, a battery charge and discharge control circuit through a resistor R6 and a DC voltage detection circuit through a resistor R8.
3. The three-battery backup power storage circuit of claim 1, wherein: the battery charge-discharge control circuit comprises a storage battery BAT1, a diode D2, a resistor R5, a triode Q3, a MOS tube Q2 and a diode D3.
4. The three-battery backup power storage circuit of claim 1, wherein: a buzzer BUZZZR is arranged in the buzzer control circuit.
5. The three-battery backup power storage circuit of claim 1, wherein: the step-down circuit comprises a voltage stabilizing circuit chip U1, a resistor R1 connected with the voltage stabilizing circuit chip U1 and a diode D1 connected with the resistor R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320430859.0U CN219499033U (en) | 2023-03-09 | 2023-03-09 | Standby power storage circuit for three-section nickel-hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320430859.0U CN219499033U (en) | 2023-03-09 | 2023-03-09 | Standby power storage circuit for three-section nickel-hydrogen battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219499033U true CN219499033U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320430859.0U Active CN219499033U (en) | 2023-03-09 | 2023-03-09 | Standby power storage circuit for three-section nickel-hydrogen battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219499033U (en) |
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2023
- 2023-03-09 CN CN202320430859.0U patent/CN219499033U/en active Active
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