CN211556897U - Timing charging circuit - Google Patents
Timing charging circuit Download PDFInfo
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- CN211556897U CN211556897U CN201922429743.1U CN201922429743U CN211556897U CN 211556897 U CN211556897 U CN 211556897U CN 201922429743 U CN201922429743 U CN 201922429743U CN 211556897 U CN211556897 U CN 211556897U
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- voltage converter
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Abstract
The utility model provides a timing charging circuit for charging and charging control to rechargeable battery among the on-vehicle electronic equipment. The timer is connected with the control end of the voltage converter and controls the voltage output of the voltage converter. When the level of the control end of the voltage converter is high level, the voltage converter has voltage output; when the level is low, the voltage converter has no voltage output. By means of the technical scheme, the rechargeable battery is prevented from being overcharged, and the electric quantity consumption of the storage battery is saved.
Description
Technical Field
The utility model relates to a battery charging technology field specifically relates to a timing charging circuit.
Background
Electronic equipment on automobiles mostly adopts automobile storage batteries for power supply as an external power supply source. In order to keep continuous work, important information is not lost, some electronic equipment is also provided with a battery, the battery is generally a rechargeable battery, and when the electric quantity is insufficient, the battery is used for taking electricity from the automobile storage battery for charging. In order to avoid overcharge to cause the damage to automobile storage battery and electronic equipment, the utility model provides a timing charging circuit.
SUMMERY OF THE UTILITY MODEL
The utility model provides a timing charging circuit for charging and charging control to rechargeable battery among the on-vehicle electronic equipment, a serial communication port, include:
a DC power supply having a positive electrode and a negative electrode, the negative electrode of the DC power supply being grounded;
a first diode having an anode and a cathode, the anode of the first diode being connected to the anode of the DC power supply;
the first resistor is provided with a first connecting end and a second connecting end, and the first connecting end is connected with the negative electrode of the first diode;
a voltage converter having a power input terminal, a power output terminal, a ground terminal, and a control terminal; the power supply input end is connected with the cathode of the first diode, the control end is connected with the second connecting end of the first resistor, and the grounding end is grounded;
the anode of the second diode is connected with the power supply output end of the voltage converter, and the cathode of the second diode is used for being connected with the anode of the rechargeable battery;
the timer output module comprises a power input end, a grounding end and an output end, wherein the power input end is connected with the anode of the rechargeable battery, the grounding end is grounded, and the output end of the timer output module is connected with the control end of the voltage converter.
The timing charging circuit is characterized in that the control end of the voltage converter is used for controlling the voltage output of the voltage converter. When the level of the control end of the voltage converter is high level, the voltage converter has voltage output; when the level is low, the voltage converter has no voltage output.
By means of the technical scheme, the rechargeable battery is prevented from being overcharged, and the electric quantity consumption of the storage battery is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a circuit diagram of a first embodiment of the present invention.
Fig. 2 is a circuit diagram of a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1, the utility model provides a timing charging circuit, include:
the rechargeable battery comprises a direct current power supply, a first diode, a resistor, a timer output module, a voltage converter, a second diode and a rechargeable battery; the direct current power supply is used for providing a charging power supply, the anode of the first diode is connected with the direct current power supply, and the cathode of the first diode is connected with the resistor and the input end of the voltage converter and is used for transmitting the power supply to the rear stage and avoiding the reverse flow of current; the output end of the timer output module is connected with the control end of the voltage converter, and the timer output module is used for pulling up the level of the output end at regular time and controlling the output of the voltage converter; the control end of the voltage converter outputs voltage when the level of the control end is high level; when the level is low level, the voltage converter has no voltage output; the anode of the second diode is connected with the output end of the voltage converter, and the cathode of the second diode is connected with the rechargeable battery for controlling the current flowing direction.
Example two
As shown in fig. 2, the utility model provides a timing charging circuit, include:
the device comprises a direct current power supply, a first diode, a resistor, a microcontroller, a voltage converter, a second diode and a rechargeable battery; the direct current power supply is used for providing a charging power supply, the anode of the first diode is connected with the direct current power supply, and the cathode of the first diode is connected with the resistor and the input end of the voltage converter and is used for transmitting the power supply to the rear stage and avoiding the reverse flow of current; the microcontroller internally comprises a timer output module, the output end of the timer output module is connected with the control end of the voltage converter, and the timer output module in the microcontroller regularly pulls up the level of the output end for controlling the output of the voltage converter; the control end of the voltage converter outputs voltage when the level of the control end is high level; when the level is low level, the voltage converter has no voltage output; the anode of the second diode is connected with the output end of the voltage converter, and the cathode of the second diode is connected with the rechargeable battery for controlling the current flowing direction.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. A timed charging circuit for charging a rechargeable battery, comprising:
a DC power supply having a positive electrode and a negative electrode, the negative electrode of the DC power supply being grounded;
a first diode having an anode and a cathode, the anode of the first diode being connected to the anode of the DC power supply;
the first resistor is provided with a first connecting end and a second connecting end, and the first connecting end is connected with the negative electrode of the first diode;
a voltage converter having a power input terminal, a power output terminal, a ground terminal, and a control terminal; the power supply input end is connected with the cathode of the first diode, the control end is connected with the second connecting end of the first resistor, and the grounding end is grounded;
the anode of the second diode is connected with the power supply output end of the voltage converter, and the cathode of the second diode is used for being connected with the anode of the rechargeable battery;
the timer output module comprises a power input end, a grounding end and an output end, wherein the power input end is connected with the anode of the rechargeable battery, the grounding end is grounded, and the output end of the timer output module is connected with the control end of the voltage converter.
2. A time charging circuit according to claim 1, wherein the control terminal of the voltage converter is configured to control the voltage output of the voltage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922429743.1U CN211556897U (en) | 2019-12-28 | 2019-12-28 | Timing charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922429743.1U CN211556897U (en) | 2019-12-28 | 2019-12-28 | Timing charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211556897U true CN211556897U (en) | 2020-09-22 |
Family
ID=72511331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922429743.1U Active CN211556897U (en) | 2019-12-28 | 2019-12-28 | Timing charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211556897U (en) |
-
2019
- 2019-12-28 CN CN201922429743.1U patent/CN211556897U/en active Active
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