CN219204377U - Timing motor driving circuit - Google Patents
Timing motor driving circuit Download PDFInfo
- Publication number
- CN219204377U CN219204377U CN202320034896.XU CN202320034896U CN219204377U CN 219204377 U CN219204377 U CN 219204377U CN 202320034896 U CN202320034896 U CN 202320034896U CN 219204377 U CN219204377 U CN 219204377U
- Authority
- CN
- China
- Prior art keywords
- resistor
- circuit
- voltage stabilizing
- chip
- filter capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
The application relates to the technical field of circuits, in particular to a timing motor driving circuit, which adopts the technical scheme that: the circuit comprises a rectifying circuit, a filter circuit, a chip circuit U1 and a voltage stabilizing circuit; the rectification circuit is arranged as a bridge rectification circuit, the bridge rectification circuit is used for converting alternating current into direct current, the filter circuit is used for removing clutter in the rectified direct current, the chip circuit U1 is externally connected with a resistor R1, a resistor R2, a resistor R3 and a resistor R9, and the filter circuit comprises a filter capacitor EC1 and a filter capacitor EC2; the voltage stabilizing circuit comprises a resistor R4, a resistor R5, a resistor R6, a resistor R7, a triode Q1, a voltage stabilizing diode Z1 and a capacitor C1, wherein an MCU chip U2 is arranged on one side of the voltage stabilizing circuit, the voltage stabilizing circuit is used for providing stable voltage for the MCU chip U2, and the MCU chip U2 is connected with the singlechip through a data line; the motor control device has the technical effects of accurately controlling the motor to work and simultaneously having multiple protections.
Description
Technical Field
The utility model relates to the technical field of circuits, in particular to a timing motor driving circuit.
Background
In conventional charging applications, the circuit is composed of a charging circuit, a tank circuit and related peripheral circuits, and when the electrical appliance needs to be charged, the charging circuit charges the tank circuit due to lack of a timing charging function and a self-starting function.
In a motor driving circuit, the current charging circuit has relatively complex circuit, so that the cost is high, and the circuit has the functions of automatic stop, energy saving and life prolonging.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a timing motor driving circuit.
The technical scheme adopted for solving the technical problems is as follows:
a timing motor driving circuit comprises a rectifying circuit, a filter circuit, a chip circuit U1 and a voltage stabilizing circuit;
the rectification circuit is arranged as a bridge rectification circuit, the bridge rectification circuit is used for converting alternating current into direct current, the filter circuit is used for removing clutter in the rectified direct current, the chip circuit U1 is externally connected with a resistor R1, a resistor R2, a resistor R3 and a resistor R9, and the filter circuit comprises a filter capacitor EC1 and a filter capacitor EC2;
the voltage stabilizing circuit comprises a resistor R4, a resistor R5, a resistor R6, a resistor R7, a triode Q1, a voltage stabilizing diode Z1 and a capacitor C1, wherein an MCU chip U2 is arranged on one side of the voltage stabilizing circuit, the voltage stabilizing circuit is used for providing stable voltage for the MCU chip U2, and the MCU chip U2 is connected with the singlechip through a data line.
Preferably, the resistor R1 is a set resistor of an idle load OVP, the resistor R2 and the resistor R3 are working current setting pins for adjusting the motor, the resistor R2 and the resistor R3 are connected in parallel, one end of the resistor R2 is connected with a current feedback end CS of the chip circuit U1, and the other end of the resistor R3 is grounded;
the chip circuit U1 is also provided with a PWM enabling pin which is used for controlling the on and off of a switching tube inside the chip.
Preferably, the filter circuit further includes a freewheeling resistor D1, an energy storage inductor L1 and a load resistor R5, where the filter capacitor EC1 is connected in parallel to the output end of the bridge rectifier circuit, one end of the freewheeling resistor D1 is connected with the positive electrode of the filter capacitor EC1, the other end of the freewheeling resistor is connected with the energy storage inductor L1, the other end of the energy storage inductor L1 is connected with a filter capacitor EC2 and a load resistor R5, the load resistor R5 is connected in parallel with the filter capacitor EC2 and the other end of the load resistor is connected with the positive electrode of the filter capacitor EC1, the negative electrode of the filter capacitor EC1 is grounded, and the resistor R4, the resistor R5, the resistor R6, the resistor R7, the triode Q1, the zener diode Z1 and the capacitor C1 form a series voltage stabilizing circuit.
Preferably, the resistor R6 is connected in series with the resistor R7, one end of the resistor R6 is connected with the positive electrode of the filter capacitor EC1, the other end of the resistor R6 is connected with the resistor R7, the other end of the resistor R7 is connected with the collector electrode of the triode Q1, one end of the resistor R4 is connected with the positive electrode of the filter capacitor EC1, the other end of the resistor R5 is connected with the resistor R5, the other end of the resistor R5 is connected with the base electrode of the triode Q1, one end of the zener diode Z1 is connected with the base electrode of the triode Q1, the other end of the zener diode Z1 is grounded, and the capacitor C1 is connected between the emitter stage of the triode Q1 and the ground.
Preferably, the MCU chip U2 is provided with a switch pin, the switch pin is connected with a button switch through a wire, and the other end of the button switch is grounded through a wire.
The utility model has the beneficial effects that: the circuit is controlled by utilizing the timing function and the soft switching function of the circuit, the accurate circuit starting control is realized through a current sampling circuit arranged in a chip, after a switch PIN K on an MCU chip U2 is grounded through a button switch, the switch is detected to be turned on in a singlechip, at the moment, a high level is output by a PIN end of the MCU chip U2 and is sent to a 7 th enabling PIN of a chip circuit U1, so that the chip circuit U1 starts to work, and a motor starts to work; after the button switch is pressed down again, the singlechip outputs a low level signal to the chip circuit U1, so that the chip circuit U1 is closed to output, and the motor stops running; when the button switch is pressed down and the motor runs, the singlechip starts timing at the moment, and after 60S, the singlechip outputs a low level to the 7 pins of the chip circuit U1, the motor stops running, and the timing is finished; when the push button switch is pressed again before the timing is finished, the output immediately stops running.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
fig. 2 is a schematic diagram of an overall structure with timing according to an embodiment of the present application.
Detailed Description
The present utility model will be described in further detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Examples:
referring to fig. 1, a timing motor driving circuit disclosed in the present application includes a rectifying circuit, a filter circuit, a chip circuit U1, and a voltage stabilizing circuit; after 220V alternating current passes through a fuse FU, rectification treatment is carried out by utilizing a rectifying circuit, the rectifying circuit converts the alternating current into direct current by adopting a rectifying bridge BD1, then filtering treatment is carried out on the rectified direct current by a filtering circuit, clutter in the rectified direct current is removed, and a smoother direct current is obtained.
Referring to fig. 1 and 2, the filter circuit includes a filter capacitor EC1, a filter capacitor EC2, a freewheel resistor D1, an energy storage inductor L1 and a load resistor R5, where the filter capacitor EC1 is connected in parallel to an output end of the bridge rectifier circuit, one end of the freewheel resistor D1 is connected to an anode of the filter capacitor EC1, the other end is connected to the energy storage inductor L1, the other end of the energy storage inductor L1 is connected to the filter capacitor EC2 and the load resistor R5, the load resistor R5 is connected to the filter capacitor EC2 in parallel and the other end is connected to an anode of the filter capacitor EC1, a cathode of the filter capacitor EC1 is grounded, and the resistor R4, the resistor R5, the resistor R6, the resistor R7, the triode Q1, the zener diode Z1 and the capacitor C1 form a series voltage stabilizing circuit.
The chip circuit U1 is externally connected with a resistor R1, a resistor R2, a resistor R3 and a resistor R9, wherein the resistor R1 is a setting resistor of an idle-load OVP, the resistor R2 and the resistor R3 are working current setting pins for adjusting a motor, the resistor R2 and the resistor R3 are mutually connected in parallel, one end of the resistor R2 is connected with a current feedback end CS of the chip circuit U1, and the other end of the resistor R3 is grounded; the chip circuit U1 is also provided with a PWM enabling pin which is used for controlling the on and off of a switching tube inside the chip.
Referring to fig. 1 and 2, the voltage stabilizing circuit includes a resistor R4, a resistor R5, a resistor R6, a resistor R7, a triode Q1, a voltage stabilizing diode Z1 and a capacitor C1, wherein an MCU chip U2 is arranged on one side of the voltage stabilizing circuit, the voltage stabilizing circuit is used for providing a stable voltage for the MCU chip U2, and the MCU chip U2 is connected with the single chip microcomputer through a data line. Resistor R6 and resistor R7 establish ties, filter capacitor EC1 positive pole is connected to resistor R6 one end, the other end is connected with resistor R7, resistor R7's the other end is connected with triode Q1's collecting electrode, filter capacitor EC1 positive pole is connected to resistor R4 one end, the other end is connected with resistor R5, resistor R5's the other end is connected with triode Q1's base, triode Q1's base is connected to zener diode Z1's one end, the other end ground connection, electric capacity C1 connects between triode Q1's emitter and ground. The MCU chip U2 is provided with a switch pin, the switch pin is connected with a button switch through a wire, and the other end of the button switch is grounded through a wire.
After the resistor R6 and the resistor R7 are filtered by the filter capacitor EC1, the collector of the smooth triode Q1 is powered, the resistor R4 and the resistor R5 are filtered to provide bias voltage for the triode Q1 and maintain current for the zener diode Z1, so that the base voltage of the triode Q1 is stabilized at 5.1V, and the capacitor C1 is an output filter capacitor; the resistor R4, the resistor R5, the resistor R6, the resistor R7, the triode Q1, the zener diode Z1 and the capacitor C1 form a series voltage stabilizing circuit, and the series voltage stabilizing circuit is used for providing stable voltage of 5V for the MCU chip U2 and providing working voltage for the VCC end and the GND end of the MCU chip U2.
After the switch PIN K is grounded through the button switch, the switch is detected to be turned on by the inside of the singlechip, and at the moment, the PIN end of the MCU chip U2 outputs a high level and is sent to the 7 th PIN enabling PIN of the chip circuit U1, so that the chip circuit U1 starts to work, and a motor starts to work;
after the button switch is pressed again, the single-chip microcomputer outputs a low level to the chip circuit U1, the chip circuit U1 is closed to output, the motor stops running, when the button switch is pressed, the motor starts to time, after 60S, the single-chip microcomputer outputs a low level to the 7 th pin of the chip circuit U1, the motor stops running, and the timing is finished. When the push button switch is pressed again before the timing is finished, the output immediately stops running.
Meanwhile, constant current output and excellent line voltage adjustment rate are realized, and output current accuracy is higher, and output current accuracy is within +/-5%. And various protection functions are built in, including motor open circuit/short circuit protection, chip temperature overheat adjustment and the like.
When the output motor is open, the system triggers the overvoltage protection logic and stops the switch. After the system enters an open circuit protection state, the internal part of the chip starts to count for 80ms, and then the system is restarted. Meanwhile, the system continuously detects the load state, and if the fault is relieved, the system can restart normal operation.
When an output short circuit occurs, the system operates at a low frequency of 3KHz, so that the power consumption is low. Meanwhile, the system continuously detects the load state, and if the fault is relieved, the system can restart normal operation.
The above embodiments should not limit the present utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent conversion fall within the protection scope of the present utility model.
Claims (5)
1. A timing motor drive circuit, characterized by: the circuit comprises a rectifying circuit, a filter circuit, a chip circuit U1 and a voltage stabilizing circuit;
the rectification circuit is arranged as a bridge rectification circuit, the bridge rectification circuit is used for converting alternating current into direct current, the filter circuit is used for removing clutter in the rectified direct current, the chip circuit U1 is externally connected with a resistor R1, a resistor R2, a resistor R3 and a resistor R9, and the filter circuit comprises a filter capacitor EC1 and a filter capacitor EC2;
the voltage stabilizing circuit comprises a resistor R4, a resistor R5, a resistor R6, a resistor R7, a triode Q1, a voltage stabilizing diode Z1 and a capacitor C1, wherein an MCU chip U2 is arranged on one side of the voltage stabilizing circuit, the voltage stabilizing circuit is used for providing stable voltage for the MCU chip U2, and the MCU chip U2 is connected with the singlechip through a data line.
2. A timing motor drive circuit according to claim 1, wherein: the resistor R1 is a setting resistor of an idle load OVP, the resistor R2 and the resistor R3 are working current setting pins of the adjusting motor, the resistor R2 and the resistor R3 are mutually connected in parallel, one end of the resistor R2 is connected with a current feedback end CS of the chip circuit U1, and the other end of the resistor R3 is grounded;
the chip circuit U1 is also provided with a PWM enabling pin which is used for controlling the on and off of a switching tube inside the chip.
3. A timing motor drive circuit in accordance with claim 2, wherein: the filter circuit further comprises a follow current resistor D1, an energy storage inductor L1 and a load resistor R5, wherein the filter capacitor EC1 is connected in parallel with the output end of the bridge rectifier circuit, one end of the follow current resistor D1 is connected with the positive electrode of the filter capacitor EC1, the other end of the follow current resistor D1 is connected with the energy storage inductor L1, the other end of the energy storage inductor L1 is connected with a filter capacitor EC2 and the load resistor R5, the other end of the load resistor R5 is connected with the filter capacitor EC2 in parallel with the positive electrode of the filter capacitor EC1, the negative electrode of the filter capacitor EC1 is grounded, and the resistor R4, the resistor R5, the resistor R6, the resistor R7, the triode Q1, the voltage stabilizing diode Z1 and the capacitor C1 form a series voltage stabilizing circuit.
4. A timing motor drive circuit in accordance with claim 2, wherein: the resistor R6 is connected in series with the resistor R7, one end of the resistor R6 is connected with the positive electrode of the filter capacitor EC1, the other end of the resistor R6 is connected with the resistor R7, the other end of the resistor R7 is connected with the collector electrode of the triode Q1, one end of the resistor R4 is connected with the positive electrode of the filter capacitor EC1, the other end of the resistor R5 is connected with the base electrode of the triode Q1, one end of the voltage stabilizing diode Z1 is connected with the base electrode of the triode Q1, the other end of the voltage stabilizing diode Z is grounded, and the capacitor C1 is connected between the emitter electrode of the triode Q1 and the ground.
5. A timing motor drive circuit according to claim 4, wherein: the MCU chip U2 is provided with a switch pin, the switch pin is connected with a button switch through a wire, and the other end of the button switch is grounded through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320034896.XU CN219204377U (en) | 2023-01-06 | 2023-01-06 | Timing motor driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320034896.XU CN219204377U (en) | 2023-01-06 | 2023-01-06 | Timing motor driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219204377U true CN219204377U (en) | 2023-06-16 |
Family
ID=86726107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320034896.XU Active CN219204377U (en) | 2023-01-06 | 2023-01-06 | Timing motor driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219204377U (en) |
-
2023
- 2023-01-06 CN CN202320034896.XU patent/CN219204377U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106787088B (en) | Self powered supply applied to discontinuous piezoelectric energy acquisition system manages circuit | |
| CN103236733B (en) | Electric bicycle charging device with functions of delaying time and powering off | |
| CN206595898U (en) | Secondary inverse-excitation type switch power-supply based on SP6650 | |
| CN201674260U (en) | Intelligent charger | |
| CN106849322A (en) | A kind of standby energy-storage system of intelligent domestic | |
| CN201674261U (en) | Intelligent battery charger | |
| CN112421755A (en) | Power supply system for electric power monitoring based on Internet of things | |
| CN205544520U (en) | Automatic energy -conserving charging circuit of pressure regulating | |
| CN107666305B (en) | Intelligent switch | |
| CN202906730U (en) | Self-switching-on-off starting control circuit used for LED flyback driving power supply | |
| CN219204377U (en) | Timing motor driving circuit | |
| CN203632943U (en) | LED energy storage driving system with reusable AC-DC converter | |
| CN203233223U (en) | Electric bicycle charging device with function of time-delay power-off | |
| CN105759684B (en) | It is a kind of to prevent opening infrared induction intelligent switch certainly by monolithic processor controlled have a power failure | |
| CN213185598U (en) | Charging circuit capable of achieving zero-voltage charging | |
| CN212304866U (en) | Automatic switching circuit for common power supply of alternating current and direct current power supplies | |
| CN213125849U (en) | Time-delay power-on type electric vehicle converter | |
| CN209963949U (en) | Soft start circuit of current type pulse width modulator chip | |
| CN2872711Y (en) | Intelligent rectifier stabilized adjuster of generator | |
| CN214256694U (en) | Two-stage scheme BOOST module IC self-power supply circuit | |
| CN205565825U (en) | Energy -conserving storage battery charging control circuit | |
| CN219513027U (en) | Power-off delay relay | |
| CN211985758U (en) | Intelligent toothbrush | |
| CN217522740U (en) | Direct current voltage regulating circuit, circuit board and electrical apparatus | |
| CN218242986U (en) | Overvoltage protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 48, Lishi Avenue, Jinhu County, Huaian City, Jiangsu Province, 211600 Patentee after: Jiangsu Guorun Electric Co.,Ltd. Address before: 223001 No. 48 Lishi Avenue, Jinhu County, Huai'an City, Jiangsu Province Patentee before: Huaian Guorun Electric Co.,Ltd. |