CN217238313U - Storage battery voltage detection control device - Google Patents
Storage battery voltage detection control device Download PDFInfo
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- CN217238313U CN217238313U CN202220238886.3U CN202220238886U CN217238313U CN 217238313 U CN217238313 U CN 217238313U CN 202220238886 U CN202220238886 U CN 202220238886U CN 217238313 U CN217238313 U CN 217238313U
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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 the field of direct current power supply design, in particular to a storage battery voltage detection control device, which comprises a double-layer printed circuit board, a voltage reduction protection circuit, a power conversion circuit, a master control circuit, a nixie tube display circuit, a boost switch circuit, an indicator lamp and a DC/DC boost circuit; the utility model discloses the consumption is little, realizes simply, can carry out real-time detection to battery voltage to the warning is done to battery under-voltage state, is the processing of stepping up when battery under-voltage state simultaneously.
Description
Technical Field
The utility model relates to a direct current power supply design field, concretely relates to battery voltage detection controlling means.
Background
In a direct current power supply system, due to the influence of the use environment and a battery, the direct current power supply is prone to the situation that the voltage and the output power of a power supply cannot meet the requirements of load equipment, and therefore the load equipment cannot work normally.
The embedded system has a large number of applications in the fields of industrial control, household appliances, instruments and meters, electromechanical control and the like, and has the characteristics of specificity, low cost, low power consumption, high performance, high reliability and the like.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a battery voltage detects controlling means relies on embedded system, carries out real-time detection and control to battery voltage to output continuous stable working power supply.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A voltage detection control device for a storage battery comprises a double-layer printed circuit board, a voltage reduction protection circuit, a power supply conversion circuit, a master control circuit, a nixie tube display circuit, a boosting switch circuit, an indicator lamp and a DC/DC boosting circuit;
the voltage reduction protection circuit, the power supply conversion circuit, the master control circuit, the nixie tube display circuit, the boosting switch circuit, the indicator lamp and the DC/DC boosting circuit are all arranged on the double-layer printed circuit board;
the storage battery is respectively and electrically connected with the voltage reduction protection circuit, the power supply conversion circuit and the boost switch circuit; the voltage reduction protection circuit is electrically connected with the master control circuit, and the power supply conversion circuit is electrically connected with the master control circuit; the boost switch circuit is respectively and electrically connected with the master control circuit, the indicator lamp and the DC/DC boost circuit; the master control circuit is electrically connected with the nixie tube display circuit;
the voltage reduction protection circuit is used for reducing the direct-current voltage output by the storage battery and converting the direct-current voltage output by the storage battery into low voltage meeting the sampling condition of the master control circuit;
the power supply conversion circuit is used for converting the direct-current input voltage output by the storage battery into voltage suitable for the master control circuit;
the master control circuit is used for sampling the low voltage output by the voltage reduction protection circuit, controlling the nixie tube display circuit to display a voltage value and controlling the boost switch circuit to be switched on or switched off;
the nixie tube display circuit is used for displaying the voltage value of the direct-current voltage output by the storage battery;
the indicating lamp is used for indicating the voltage state of the storage battery;
the DC/DC boost circuit boosts the DC voltage output from the battery and converts the DC voltage output from the battery into a set voltage.
Compared with the prior art, the beneficial effects of the utility model are that: the storage battery voltage detection device has the advantages of low power consumption, simple implementation, capability of detecting the voltage of the storage battery in real time, warning the undervoltage state of the storage battery, and boosting the voltage of the storage battery in the undervoltage state.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic block diagram of the storage battery voltage detection control device of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
Referring to fig. 1, a voltage detection control device for a storage battery comprises a double-layer printed circuit board, a voltage reduction protection circuit, a power conversion circuit, a master control circuit, a nixie tube display circuit, a boost switch circuit, an indicator light and a DC/DC boost circuit;
the voltage reduction protection circuit, the power supply conversion circuit, the master control circuit, the nixie tube display circuit, the boosting switch circuit, the indicator lamp and the DC/DC boosting circuit are all arranged on the double-layer printed circuit board;
the storage battery is respectively and electrically connected with the voltage reduction protection circuit, the power supply conversion circuit and the boost switch circuit; the voltage reduction protection circuit is electrically connected with the master control circuit, and the power supply conversion circuit is electrically connected with the master control circuit; the boost switch circuit is respectively and electrically connected with the master control circuit, the indicator lamp and the DC/DC boost circuit; the master control circuit is electrically connected with the nixie tube display circuit;
the voltage reduction protection circuit is used for reducing the direct-current voltage output by the storage battery, converting the direct-current voltage output by the storage battery into low voltage meeting the sampling condition of the master control circuit and providing the low voltage meeting the sampling condition for the master control circuit;
the power supply conversion circuit is used for converting the direct current input voltage output by the storage battery into voltage suitable for the master control circuit, and the voltage is used as a working power supply of the master control circuit;
the master control circuit is used for sampling the low voltage output by the voltage reduction protection circuit, controlling the nixie tube display circuit to display a voltage value and controlling the boost switch circuit to be switched on or switched off;
the nixie tube display circuit is used for displaying the voltage value of the direct-current voltage output by the storage battery;
the indicating lamp is used for indicating the voltage state of the storage battery; the indicator lamp is turned off to indicate that the voltage of the storage battery is normal, and the indicator lamp is turned on to indicate that the storage battery is under-voltage;
the DC/DC boost circuit boosts a DC voltage output from the battery, converts the DC voltage output from the battery into a set voltage, and outputs the set voltage.
Further, the total control circuit comprises an STM32F103 chip; the voltage input range of the general I/O interface of the STM32F103 chip is 0-3.3V, and the external clock is 8 MHz.
Further, the voltage reduction protection circuit comprises a TVS transient suppression diode and a resistor; the TVS transient suppression diode is used for overvoltage protection, so that the voltage input into the master control circuit does not exceed 30V; and then, the voltage input into the master control circuit is reduced by adopting a mode of serially connecting resistors for voltage division, so that the voltage input into the master control circuit is not more than 3.3V.
Further, the power conversion circuit comprises a DC/DC voltage reduction circuit and a MAX604 chip; the DC/DC voltage reduction circuit converts the voltage from the storage battery into 5V voltage, and then the voltage is converted into 3.3V voltage by the MAX604 chip to be used by the master control circuit, so that a working power supply is provided for the master control circuit.
Furthermore, the nixie tube display circuit comprises 4 common-cathode nixie tubes, and the 4 common-cathode nixie tubes are used for displaying voltage values; the 4-bit common cathode nixie tube comprises 9 control pins and 1 grounding pin, wherein the 9 control pins are connected with 9 independent general I/O interfaces of the STM32F103 chip, and the 1 grounding pin is connected with the common ground of the double-layer printed circuit board.
Furthermore, the boost switch circuit comprises a PNP field effect transistor which is used as an electronic switch; the PNP field effect transistor is connected with a general I/O interface of the STM32F103 chip; when the direct-current voltage output by the storage battery is smaller than a set threshold value, the master control circuit sends a low level to the boost switch circuit, and the boost switch circuit is conducted; when the direct-current voltage output by the storage battery is smaller than a set threshold value, the master control circuit sends a high level to the boost switch circuit, and the boost switch circuit is disconnected.
Further, the DC/DC boost circuit includes an XL6012 chip, configured to convert a direct-current voltage output by the battery into a set voltage and output the set voltage; the DC/DC booster circuit converts the storage battery power supply into a set power supply to supply power to the load equipment.
The specific use mode is as follows:
step 1, the storage battery outputs direct current voltage U 1 ；
Step 2, the power supply conversion circuit converts the direct current voltage U 1 Converting the voltage into voltage suitable for the master control circuit to be used as a working power supply of the master control circuit; the voltage reduction protection circuit converts the DC voltage U into DC voltage U 1 Conversion to low voltage U by setting 2 And input to the master control circuit;
step 3, the master control circuit inputs low voltage U 2 Sampling according to low voltage U 2 Calculating the DC voltage U by the sampling value 1 Voltage value of (d); the master control circuit controls the nixie tube display circuit to display the direct current voltage U 1 The voltage value of (a);
step 4, the master control circuit is used for controlling the DC voltage U according to the DC voltage 1 The voltage value adopts different working schemes:
(1) when the DC voltage U is 1 When the voltage is less than the set threshold value, the master control circuit sends a low level to the boost control circuit, the boost control circuit is conducted, the indicator lamp is lightened, the DC/DC boost circuit works, and the DC/DC boost circuit applies the DC voltage U 1 Converting the voltage into a set voltage and outputting the set voltage to provide power for load equipment;
(2) when the DC voltage U 1 When the voltage is less than the set threshold value, the master control circuit sends a high level to the boost control circuitAnd the boost control circuit is disconnected, the indicator lamp is turned off, and the DC/DC boost circuit does not work.
Although the invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that certain changes and modifications can be made therein without departing from the scope of the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A storage battery voltage detection control device is characterized by comprising a double-layer printed circuit board, a voltage reduction protection circuit, a power supply conversion circuit, a master control circuit, a nixie tube display circuit, a boosting switch circuit, an indicator light and a DC/DC boosting circuit;
the voltage reduction protection circuit, the power supply conversion circuit, the master control circuit, the nixie tube display circuit, the boosting switch circuit, the indicator lamp and the DC/DC boosting circuit are all arranged on the double-layer printed circuit board;
the storage battery is respectively and electrically connected with the voltage reduction protection circuit, the power supply conversion circuit and the boost switch circuit; the voltage reduction protection circuit is electrically connected with the master control circuit, and the power supply conversion circuit is electrically connected with the master control circuit; the boost switch circuit is respectively and electrically connected with the master control circuit, the indicator lamp and the DC/DC boost circuit; the master control circuit is electrically connected with the nixie tube display circuit;
the voltage reduction protection circuit is used for reducing the direct-current voltage output by the storage battery and converting the direct-current voltage output by the storage battery into low voltage meeting the sampling condition of the master control circuit;
the power supply conversion circuit is used for converting the direct-current input voltage output by the storage battery into voltage suitable for the master control circuit;
the master control circuit is used for sampling the low voltage output by the voltage reduction protection circuit, controlling the nixie tube display circuit to display a voltage value and controlling the boost switch circuit to be switched on or switched off;
the nixie tube display circuit is used for displaying the voltage value of the direct-current voltage output by the storage battery;
the boost switch circuit is used for controlling the indicator lamp and the DC/DC boost circuit to work;
the indicating lamp is used for indicating the voltage state of the storage battery;
the DC/DC boost circuit boosts a DC voltage output from the battery, converts the DC voltage output from the battery into a set voltage, and outputs the set voltage.
2. The battery voltage detection control device according to claim 1, wherein the general control circuit comprises an STM32F103 chip.
3. The battery voltage detection control apparatus according to claim 1, wherein the step-down protection circuit includes a TVS transient suppression diode and a resistor; the TVS transient suppression diode is used for overvoltage protection; the resistor is used for reducing the voltage input into the master control circuit.
4. The battery voltage detection control device according to claim 1, wherein the power conversion circuit includes a DC/DC step-down circuit and a MAX604 chip; the DC/DC voltage reduction circuit is used for converting the voltage from the storage battery into 5V voltage; the MAX604 chip is used to convert 5V to 3.3V.
5. The battery voltage detection control device according to claim 1, wherein the nixie tube display circuit comprises 4-bit common cathode nixie tubes, and the 4-bit common cathode nixie tubes are used for displaying the voltage values.
6. The battery voltage detection control apparatus according to claim 1, wherein the boost switch circuit includes a PNP field effect transistor, and the PNP field effect transistor is used as the electronic switch.
7. The battery voltage detection control apparatus according to claim 1, wherein the DC/DC boost circuit includes an XL6012 chip for converting a DC voltage output from the battery into a set voltage and outputting the set voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238886.3U CN217238313U (en) | 2022-01-28 | 2022-01-28 | Storage battery voltage detection control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238886.3U CN217238313U (en) | 2022-01-28 | 2022-01-28 | Storage battery voltage detection control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217238313U true CN217238313U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220238886.3U Active CN217238313U (en) | 2022-01-28 | 2022-01-28 | Storage battery voltage detection control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217238313U (en) |
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2022
- 2022-01-28 CN CN202220238886.3U patent/CN217238313U/en active Active
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