CN216252226U - Shift charging control circuit and charger - Google Patents
Shift charging control circuit and charger Download PDFInfo
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- CN216252226U CN216252226U CN202122823041.9U CN202122823041U CN216252226U CN 216252226 U CN216252226 U CN 216252226U CN 202122823041 U CN202122823041 U CN 202122823041U CN 216252226 U CN216252226 U CN 216252226U
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Abstract
The utility model provides a gear shifting charging control circuit and a charger, comprising: the system comprises a microcontroller, a temperature protection circuit and an LED control circuit, wherein the microcontroller is connected with the overvoltage protection circuit, the temperature protection circuit and the LED control circuit, and the LED control circuit comprises an automatic stop indicating circuit, at least two gear indicating circuits and a plurality of electric quantity indicating circuits, wherein the automatic stop indicating circuits are electrically connected with the controller, and one end of the automatic stop indicating circuit, which is far away from the controller, is connected to one point; the two ends of the filtering voltage stabilizing circuit are respectively connected with the microcontroller and the power supply; the gear shifting module comprises a speed regulating switch and a mode switching switch which are electrically connected with the microcontroller, and the speed regulating switch is connected with a speed regulating interface of the filtering voltage stabilizing circuit; and the grid drive end of the drive circuit is connected with the microcontroller, and the drive circuit is also connected with a current detection circuit and a non-inductive circuit which are electrically connected with the microcontroller. The utility model carries out charging speed regulation through the gear shifting module and improves the anti-interference performance through the non-inductive circuit.
Description
Technical Field
The utility model belongs to the technical field of chargers, and particularly relates to a gear shifting charging control circuit and a charger.
Background
The charger is a charging device which adopts a high-frequency power supply technology and applies an advanced intelligent dynamic adjustment charging technology. When the charger charges the electrical appliance, the electrical appliance is charged with a fixed voltage and a fixed current until the electrical appliance is fully charged and powered off.
In the prior art, after the battery module in the electrical appliance is repeatedly charged for a long time, the internal resistance is increased, the charging speed is slowed, the charging speed is greatly influenced by the initial voltage and current, meanwhile, the chargers correspond to the electrical appliances one by one, and the conventional charger cannot adapt to the charging requirements of various electrical appliances through multiple gears.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a gear shifting charging control circuit and a charger, wherein the gear shifting module is used for charging and regulating the speed, and the noninductive circuit is used for improving the anti-interference performance.
The utility model provides the following technical scheme:
the application provides a gear shifting charge control circuit, includes:
the system comprises a microcontroller, a temperature protection circuit and an LED control circuit, wherein the microcontroller is connected with the overvoltage protection circuit, the temperature protection circuit and the LED control circuit, and the LED control circuit comprises an automatic stop indicating circuit, at least two gear indicating circuits and a plurality of electric quantity indicating circuits, wherein the automatic stop indicating circuits are electrically connected with the controller, and one end of the LED control circuit, which is far away from the controller, is connected to one point;
the two ends of the filtering and voltage stabilizing circuit are respectively connected with the microcontroller and the power supply and are used for connecting the power supply and outputting continuously stable voltage after filtering and voltage stabilizing;
the gear shifting module comprises a speed regulating switch and a mode switching switch which are electrically connected with the microcontroller, and the speed regulating switch is connected with a speed regulating interface of the filtering voltage stabilizing circuit;
and the grid drive end of the drive circuit is connected with the microcontroller, and the drive circuit is also connected with a current detection circuit and a non-inductive circuit which are electrically connected with the microcontroller.
Preferably, the microcontroller is further connected with a serial port circuit.
Preferentially, the overvoltage protection circuit comprises a resistor R33, a resistor R38 and a capacitor C19, one end of the resistor R33 is connected with the power supply voltage end, the other end of the resistor R33 is connected with one end of a resistor R38, one end of a capacitor C19 and the microcontroller overvoltage protection sampling end, the other end of the capacitor C19 is connected with the signal ground end, and the other end of the resistor R38 is connected with the power supply ground end.
Preferentially, the temperature protection circuit comprises a resistor R32, a thermistor R39 and a capacitor C21, one end of the resistor R32 is connected with the anode of a 5V power supply, the other end of the resistor R32 is connected with one end of the thermistor R39, one end of the capacitor C21 and a microcontroller, the other end of the thermistor R39 and the other end of the capacitor C21 are both connected with a signal ground end, and the thermistor adopts a negative temperature coefficient resistor NTC.
Preferentially, a first pin of the speed regulation switch is connected with a 5V power supply anode, a second pin is connected with a speed regulation interface of the filtering and voltage stabilizing circuit and one end of a capacitor C20, the other end of the capacitor C20 is connected with a signal ground end, a third pin is grounded, a fourth pin is floating, and a fifth pin is connected with the microcontroller; one end of the mode switching switch is connected with the microcontroller, and the other end of the mode switching switch is connected with the signal ground end.
Preferably, the filtering and voltage stabilizing circuit comprises a filter circuit and a voltage stabilizing circuit, the filter circuit adopts a polar capacitor and a non-polar capacitor which are connected in parallel for filtering, and the voltage stabilizing circuit adopts a three-terminal integrated voltage regulator.
Preferably, the driving circuit comprises a first driving circuit and a second driving circuit, the input end of the current detection circuit is connected with the first driving circuit and the second driving circuit, the first driving circuit is connected with the second driving circuit, and the second driving circuit is connected with the non-inductive circuit;
the first driving circuit comprises a first W-phase bridge, a first V-phase bridge and a first U-phase bridge, and grid driving ends of the three-phase bridges are electrically connected with the microcontroller;
the second drive circuit comprises a second W-phase bridge, a second V-phase bridge and a second U-phase bridge, grid drive ends of the three-phase bridges are electrically connected with the microcontroller, and middle ends of the three-phase bridges are respectively connected with middle ends of corresponding phases of the three-phase bridges in the first drive circuit.
Preferably, the non-inductive circuit comprises a W-phase non-inductive detection circuit, a V-phase non-inductive detection circuit and a U-phase non-inductive detection circuit, one end of the W-phase non-inductive detection circuit is connected to one point, the second end of the W-phase non-inductive detection circuit is connected to the corresponding phase pin of the microcontroller, the third end of the three-phase non-inductive detection circuit is connected to the power ground, the fourth end of the three-phase non-inductive detection circuit is connected to the signal ground, and the fifth end of the three-phase non-inductive detection circuit is connected to the middle-level end of the corresponding phase of the second driving circuit.
Based on the above-mentioned gear shifting charging control circuit, the application also provides a charger, which comprises the above-mentioned gear shifting charging control circuit.
The utility model has the beneficial effects that:
1. the charging mode is selected through the mode switching switch, the gear is selected through the speed regulating switch to carry out charging speed regulation, gear indication and electric quantity indication are carried out through the LED control circuit, corresponding gears can be selected according to application requirements, and the application range is expanded;
2. the load driving is carried out through the two-stage driving circuit, and the anti-interference performance is improved through the non-inductive circuit.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a circuit diagram of the microcontroller connection of the present invention;
fig. 2 is a circuit diagram of a driving circuit of the present invention.
Detailed Description
The application provides a gear shifting charge control circuit, includes:
as shown in fig. 1, the microcontroller is connected with an overvoltage protection circuit, a temperature protection circuit and an LED control circuit, and the LED control circuit comprises an automatic stop indicating circuit, at least two gear indicating circuits and a plurality of electric quantity indicating circuits, wherein the automatic stop indicating circuits are electrically connected with the controller and are connected to one point far away from one end of the controller. The microcontroller is also connected with a serial port circuit.
As shown in fig. 1, the overvoltage protection circuit includes a resistor R33, a resistor R38, and a capacitor C19, one end of the resistor R33 is connected to the supply voltage terminal VCC, the other end of the resistor R33 is connected to one end of the resistor R38, one end of the capacitor C19, and the microcontroller overvoltage protection sampling terminal, the other end of the capacitor C19 is connected to the signal ground terminal SGND, and the other end of the resistor R38 is connected to the power ground terminal GND. The temperature protection circuit comprises a resistor R32, a thermistor R39 and a capacitor C21, one end of the resistor R32 is connected with the anode of a 5V power supply, the other end of the resistor R32 is connected with one end of the thermistor R39, one end of the capacitor C21 and the microcontroller, the other end of the thermistor R39 and the other end of the capacitor C21 are both connected with a signal ground terminal SGND, and the thermistor adopts a negative temperature coefficient resistor NTC.
As shown in fig. 1, the filtering and voltage stabilizing circuit has two ends respectively connected to the microcontroller and the power supply, and is configured to connect to the power supply and output a continuously stable voltage after filtering and voltage stabilizing. The filtering and voltage stabilizing circuit comprises a filter circuit and a voltage stabilizing circuit, wherein the filter circuit adopts a polar capacitor and a non-polar capacitor which are connected in parallel for filtering, and the voltage stabilizing circuit adopts a three-terminal integrated voltage stabilizer.
As shown in fig. 2, the gear shifting module includes a speed regulating switch and a mode switching switch electrically connected to the microcontroller, and the speed regulating switch is connected to the speed regulating interface of the filtering voltage stabilizing circuit. A first pin of the speed regulation switch is connected with a 5V power supply anode, a second pin of the speed regulation switch is connected with a speed regulation interface of the filtering voltage stabilizing circuit and one end of a capacitor C20, the other end of the capacitor C20 is connected with a signal ground terminal SGND, a third pin of the capacitor C20 is grounded, a fourth pin of the capacitor C is floating, and a fifth pin of the capacitor C is connected with the microcontroller; one end of the mode switching switch is connected with the microcontroller, and the other end of the mode switching switch is connected with the signal ground terminal SGND. When the gear needs to be shifted, the mode selector switch is pressed down firstly, the gear is uploaded to the microcontroller through the KEY _ M interface, the gear is shifted through the SPEED regulating switch, the gear comprises a gear 1 and a gear 2, the gear shifting signal is uploaded to the microcontroller through the KEY _ SW pin and is transmitted to the filtering voltage stabilizing signal through the SPEED pin, and the output of the power supply is controlled according to the gear signal. The microcontroller lights the corresponding gear indicator lamp and the corresponding electric quantity indicator lamp through the LED control circuit. After the electric quantity is full, the electric quantity is prompted through an electric quantity indicating lamp and an automatic stop indicating lamp.
As shown in fig. 2, the gate driving end of the driving circuit is connected to the microcontroller, and the driving circuit is further connected to a current detection circuit and a non-inductive circuit both electrically connected to the microcontroller.
The driving circuit comprises a first driving circuit and a second driving circuit, the input end of the current detection circuit is connected with the first driving circuit and the second driving circuit, the first driving circuit is connected with the second driving circuit, and the second driving circuit is connected with the non-inductive circuit.
The first driving circuit comprises a first W-phase bridge, a first V-phase bridge and a first U-phase bridge, and grid driving ends of the three-phase bridges are electrically connected with the microcontroller.
The second drive circuit comprises a second W-phase bridge, a second V-phase bridge and a second U-phase bridge, grid drive ends of the three-phase bridges are electrically connected with the microcontroller, and middle ends of the three-phase bridges are respectively connected with middle ends of corresponding phases of the three-phase bridges in the first drive circuit.
As shown in fig. 2, the non-inductive circuit includes a W-phase non-inductive detection circuit, a V-phase non-inductive detection circuit and a U-phase non-inductive detection circuit, one end of which is connected to one point, and the second end of which is connected to the corresponding phase pin of the microcontroller, respectively, a third end of the three-phase non-inductive detection circuit is connected to a power ground GND, a fourth end of which is connected to a signal ground SGND, and a fifth end of the three-phase non-inductive detection circuit is connected to the middle-level end of the corresponding phase of the second driving circuit, respectively. Taking the U-phase non-inductive detection circuit as an example, the U-phase non-inductive detection circuit includes a resistor R29, a resistor R43, a resistor R40 and a capacitor C22, one end of the resistor R29 is connected to a middle end of a second U-phase bridge of the second driving circuit, the other end of the resistor R29 is connected to one end of a resistor R43, one end of a resistor R40, one end of a capacitor C22 and a pin Bef _ U of the microcontroller, the other end of the resistor R40 is connected to a power ground GND, the other end of the resistor R43 is connected to a pin Bef _ N of the microcontroller and one end of a capacitor C26, and the other end of the capacitor C26 and the other end of the capacitor C22 are both connected to a signal ground SGND.
Based on the above-mentioned gear shifting charging control circuit, the application also provides a charger, which comprises the above-mentioned gear shifting charging control circuit.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A gear shifting charging control circuit is characterized in that: the method comprises the following steps:
the system comprises a microcontroller, a temperature protection circuit and an LED control circuit, wherein the microcontroller is connected with the overvoltage protection circuit, the temperature protection circuit and the LED control circuit, and the LED control circuit comprises an automatic stop indicating circuit, at least two gear indicating circuits and a plurality of electric quantity indicating circuits, wherein the automatic stop indicating circuits are electrically connected with the controller, and one end of the LED control circuit, which is far away from the controller, is connected to one point;
the two ends of the filtering and voltage stabilizing circuit are respectively connected with the microcontroller and the power supply and are used for connecting the power supply and outputting continuously stable voltage after filtering and voltage stabilizing;
the gear shifting module comprises a speed regulating switch and a mode switching switch which are electrically connected with the microcontroller, and the speed regulating switch is connected with a speed regulating interface of the filtering voltage stabilizing circuit;
and the grid drive end of the drive circuit is connected with the microcontroller, and the drive circuit is also connected with a current detection circuit and a non-inductive circuit which are electrically connected with the microcontroller.
2. The shift charging control circuit according to claim 1, wherein: the microcontroller is also connected with a serial port circuit.
3. The shift charging control circuit according to claim 1, wherein: the overvoltage protection circuit comprises a resistor R33, a resistor R38 and a capacitor C19, one end of the resistor R33 is connected with a power supply voltage end, the other end of the resistor R33 is connected with one end of a resistor R38, one end of a capacitor C19 and an overvoltage protection sampling end of the microcontroller, the other end of the capacitor C19 is connected with a signal ground end, and the other end of the resistor R38 is connected with a power supply ground end.
4. The shift charging control circuit according to claim 1, wherein: the temperature protection circuit comprises a resistor R32, a thermistor R39 and a capacitor C21, wherein one end of the resistor R32 is connected with the positive electrode of a 5V power supply, the other end of the resistor R32 is connected with one end of the thermistor R39, one end of the capacitor C21 and a microcontroller, the other end of the thermistor R39 and the other end of the capacitor C21 are both connected with a signal ground end, and the thermistor adopts a negative temperature coefficient resistor NTC.
5. The shift charging control circuit according to claim 1, wherein: a first pin of the speed regulating switch is connected with a 5V power supply anode, a second pin of the speed regulating switch is connected with a speed regulating interface of the filtering voltage stabilizing circuit and one end of a capacitor C20, the other end of the capacitor C20 is connected with a signal ground end, a third pin of the capacitor C20 is grounded, a fourth pin of the capacitor C is floating, and a fifth pin of the capacitor C is connected with the microcontroller; one end of the mode switching switch is connected with the microcontroller, and the other end of the mode switching switch is connected with the signal ground end.
6. The shift charging control circuit according to claim 1, wherein: the filtering and voltage stabilizing circuit comprises a filter circuit and a voltage stabilizing circuit, wherein the filter circuit adopts a polar capacitor and a non-polar capacitor which are connected in parallel for filtering, and the voltage stabilizing circuit adopts a three-terminal integrated voltage stabilizer.
7. The shift charging control circuit according to claim 1, wherein: the driving circuit comprises a first driving circuit and a second driving circuit, the input end of the current detection circuit is connected with the first driving circuit and the second driving circuit, the first driving circuit is connected with the second driving circuit, and the second driving circuit is connected with the non-inductive circuit;
the first driving circuit comprises a first W-phase bridge, a first V-phase bridge and a first U-phase bridge, and grid driving ends of the three-phase bridges are electrically connected with the microcontroller;
the second drive circuit comprises a second W-phase bridge, a second V-phase bridge and a second U-phase bridge, grid drive ends of the three-phase bridges are electrically connected with the microcontroller, and middle ends of the three-phase bridges are respectively connected with middle ends of corresponding phases of the three-phase bridges in the first drive circuit.
8. The shift charging control circuit according to claim 1, wherein: the non-inductive circuit comprises a W-phase non-inductive detection circuit, a V-phase non-inductive detection circuit and a U-phase non-inductive detection circuit, one end of the W-phase non-inductive detection circuit is connected to one point, the second end of the W-phase non-inductive detection circuit is connected with a corresponding phase pin of the microcontroller, the third end of the three-phase non-inductive detection circuit is connected with a power ground end, the fourth end of the three-phase non-inductive detection circuit is connected with a signal ground end, and the fifth end of the three-phase non-inductive detection circuit is connected with a middle-position end of a corresponding phase of the second driving circuit.
9. A charger, characterized by: comprising the geared charge control circuit according to claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122823041.9U CN216252226U (en) | 2021-11-17 | 2021-11-17 | Shift charging control circuit and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122823041.9U CN216252226U (en) | 2021-11-17 | 2021-11-17 | Shift charging control circuit and charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216252226U true CN216252226U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122823041.9U Active CN216252226U (en) | 2021-11-17 | 2021-11-17 | Shift charging control circuit and charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216252226U (en) |
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2021
- 2021-11-17 CN CN202122823041.9U patent/CN216252226U/en active Active
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