CN214506917U - Composite motor control circuit - Google Patents
Composite motor control circuit Download PDFInfo
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- CN214506917U CN214506917U CN202023328447.1U CN202023328447U CN214506917U CN 214506917 U CN214506917 U CN 214506917U CN 202023328447 U CN202023328447 U CN 202023328447U CN 214506917 U CN214506917 U CN 214506917U
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Abstract
The utility model provides a composite motor control circuit, which comprises a power supply end, a driving unit, a switching unit and a motor unit; the first direct current switch unit of the switching unit is connected between the first output end group of the driving unit and the first direct current motor of the motor unit; the second direct current switch unit of the switching unit is connected between the second output end group of the driving unit and the second direct current motor of the motor unit; the step switch unit of the switching unit is connected between the first output end group and the second output end group of the driving unit and the step motor of the stepper unit. The composite motor control circuit can simultaneously control two direct current motors and/or one stepping motor through one driver, so that the size of the control circuit is smaller, the cost is lower, the application of motor cooperative control occasions is realized, and the application occasions of the two types of motors are diversified.
Description
Technical Field
The utility model relates to an electricity field especially relates to a compound motor control circuit.
Background
The dc motor is a rotating electrical machine that can convert dc electrical energy into mechanical energy or vice versa. When the motor is used as a motor, the motor is a direct current motor and converts electric energy into mechanical energy; when the generator is operated, the generator is a direct current generator and converts mechanical energy into electric energy.
A stepper motor is an electric motor that converts electrical pulse signals into corresponding angular or linear displacements. The rotor rotates an angle or one step before inputting a pulse signal, the output angular displacement or linear displacement is proportional to the input pulse number, and the rotating speed is proportional to the pulse frequency.
In the field of motor control in the prior art, a driver is used for driving a stepping motor alone or driving two direct current motors alone. Although the control scheme is simple, the control of the stepping motor and the direct current motor can not be realized simultaneously, so that the application occasions of the two types of motors are single. When the stepping motor and the direct current motor are required to be comprehensively applied, a plurality of devices such as a stepping motor driver, a stepping motor controller, a direct current motor driver, a direct current motor controller and the like are generally required to be configured and are mutually independent, so that the stepping motor and the direct current motor cannot be applied to the occasion of motor cooperative control.
For more contents of the existing motor control circuit, reference may be made to chinese patent document CN 101807879A.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a compound motor control circuit to the realization is through a driver, controls two direct current motor and/or a step motor simultaneously, not only makes control circuit's volume littleer cost lower, has still realized the application of motor cooperative control occasion, makes the diversification of two types of motor application occasions.
In order to solve the above problem, the utility model provides a compound motor control circuit, include: a power supply terminal of the power supply; the driving unit is a double-bridge motor driver, an enabling end of the driving unit is connected with a power supply end of the power supply, the driving unit comprises a first output end group and a second output end group, the first output end group comprises a first output port and a second output port, and the second output end group comprises a first output port and a second output port; the switching unit comprises a first direct current switch unit, a second direct current switch unit and a stepping switch unit; the motor unit comprises a first direct current motor, a second direct current motor and a stepping motor; the first direct current switch unit is connected between the first output end group and a first direct current motor; the second direct current switch unit is connected between the second output end group and the second direct current motor; the step switch unit is connected among the first output end group, the second output end group and the step motor.
Optionally, the first dc switch unit includes a first switching device, a first relay, a first resistor, and a fifth resistor; one end of the first resistor is connected with the main control unit, and the other end of the first resistor is connected with the switch control end of the first switch device; the output end of the first switching device is grounded; the first relay is connected between the first switching device and the power source.
Optionally, the second dc switch unit includes a third switching device, a third relay, a third resistor, and a seventh resistor; one end of the third resistor is connected with the main control unit, the other end of the third resistor is connected with the switch control end of the third switching device, and the output end of the third switching device is grounded; the third relay is connected between the third switching device and the power supply.
Optionally, the step switch unit includes a second switch device, a second relay, a second resistor, and a sixth resistor; one end of the second resistor is connected with the main control unit, the other end of the second resistor is connected with the switch control end of the second switch device, and the output end of the second switch device is grounded; the second relay is connected between the second switching device and the power supply;
the step switch unit further comprises a fourth switching device, a fourth relay, a fourth resistor and an eighth resistor; the fourth resistor is connected in series with the fourth switching device, and the eighth resistor is connected in parallel with the fourth switching device; one end of the fourth resistor is connected with the main control unit, the other end of the fourth resistor is connected with the switch control end of the second switch device, and the output end of the fourth switch device is grounded; the fourth relay is connected between the second switching device and the power supply.
Optionally, the first switching device is an NMOS transistor or an NPN transistor; the second switching device is an NMOS tube or an NPN tube; the third switching device is an NMOS tube or an NPN tube; the fourth switching device is an NMOS tube or an NPN tube.
Optionally, the main control unit is an MCU.
Optionally, the composite motor control circuit is characterized in that the switching unit includes an analog switch.
Optionally, the analog switch includes an analog switch logic circuit, a first analog switch circuit, a second analog switch circuit, a third analog switch circuit, a fourth analog switch circuit, a fifth analog switch circuit, a sixth analog switch circuit, a seventh analog switch circuit, and an eighth analog switch circuit; the first analog switch circuit is connected between a first output port of the first output end group and the first direct current motor, and the second analog switch circuit is connected between a second output port of the first output end group and the first direct current motor; the third analog switch circuit is connected between the first output port of the second output end group and the second direct current motor, and the fourth analog switch circuit is connected between the second output port of the second output end group and the second direct current motor; the fifth analog switch circuit is connected between the first output port of the first output end group and the stepping motor, and the sixth analog switch circuit is connected between the second output port of the first output end group and the stepping motor; the seventh analog switch circuit is connected between the first output port of the second output terminal group and the stepping motor, and the eighth analog switch circuit is connected between the second output port of the second output terminal group and the stepping motor.
Optionally, the analog switch model may be MAX4824, MAX4800A, MAX4802A, MAX308CPE, or MC 33298.
Alternatively, the driving unit may be a model DRV8833 or PT5139 chip.
The utility model discloses a following beneficial effect:
(1) the technical proposal of the utility model only uses one driver to realize the composite motor control circuit, thus leading the circuit volume to be smaller and the cost to be lower;
(2) the utility model discloses technical scheme's circuit can two direct current motor and/or a step motor of simultaneous control through the switch unit, has realized the application of motor cooperative control occasion, has broken the limitation of two types of motor application occasions among the prior art.
Drawings
FIG. 1 is a block circuit diagram of a composite motor control circuit in an embodiment;
FIG. 2 is a schematic circuit diagram corresponding to the block circuit diagram of FIG. 1;
fig. 3 is another circuit schematic diagram of the composite motor control circuit in another embodiment of the circuit block diagram shown in fig. 1.
Detailed Description
In the field of motor control in the prior art, a driver is required for driving one stepping motor and two direct current motors respectively. Although the control scheme is simple, the control of the stepping motor and the direct current motor can not be realized simultaneously, so that the application occasions of the two types of motors are single.
Therefore, the utility model provides a compound motor control circuit to solve the not enough of above-mentioned existence.
For a clearer illustration, the present invention will be described in detail with reference to the accompanying drawings.
An embodiment of the present invention provides a composite motor control circuit, please refer to fig. 1 and fig. 2 in combination.
Referring to fig. 1, the composite motor control circuit includes: the power supply device comprises a power supply end, a driving unit 10, a switching unit 20, a first direct current switch unit 21, a second direct current switch unit 22, a step switch unit 23 and a motor unit 30.
The ports of each cell correspond to the contact points of each line and cell in fig. 1, which are not labeled, and are also described herein.
The driving unit 10 has an enable terminal SLEPN (the input is activated high, the chip can normally work), a first output terminal set and a second output terminal set (the power output terminal set is not shown in fig. 1), as shown in fig. 2, which are the power output ports AOUT1, AOUT2 (forming the first output terminal set), BOUT1 and BOUT2 (forming the second output terminal set).
The switching unit 20 includes a first dc switching unit 21, a second dc switching unit 22, and a step switching unit 23.
The motor unit 30 includes a first dc motor (also M1 in fig. 2), a second dc motor (also M2 in fig. 2), and a stepping motor (also M3 in fig. 2).
The first dc switch unit 21 has an input terminal connected to the first group of output terminals AOUT1, AOUT2 (not shown in fig. 1, please refer to fig. 2) of the driving unit 10, and an output terminal connected to the first dc motor M1.
The input of the second dc switch unit 22 is connected to the second output group BOUT1, BOUT2 (not shown in fig. 1, please refer to fig. 2) of the driving unit 10, and the output is connected to the second dc motor M2.
The input end of the step switch unit 23 is connected to the first output end group AOUT1, AOUT2 (not shown in fig. 1, please refer to fig. 2), the second output end group BOUT1, BOUT2 (not shown in fig. 1, please refer to fig. 2) of the driving unit 10, and the output end is connected to the second dc motor M2.
Fig. 2 provides a detailed circuit schematic corresponding to the circuit block diagram of fig. 1.
Referring to fig. 2, in the present embodiment, the driving unit 10 may use a PT5139 chip, and has two input terminal sets (a first input terminal set AIN1, AIN2, a second input terminal set BIN1, BIN2) connected to the MCU, and two output terminal sets (a first output terminal set AOUT1, AOUT2, a second output terminal set BOUT1, BOUT2), where each input terminal corresponds to each output terminal; the chip enable end SLEPN is connected with the power supply end, and the input high level is effective.
Referring to fig. 2, the switching unit 20 includes a first dc switching unit, a second dc switching unit, and a switching unit of a stepping motor M3 (not specifically divided in the figure, but refer to the following description).
The first dc switching unit includes a first relay K1, a first switching device Q1, a first resistor R1, and a fifth resistor R5. The first dc switching unit has an input connected to the first group of output terminals (AOUT1, AOUT2) of the driving unit 10 and an output connected to the first dc motor M1.
The switching device is typically a corresponding transistor (triode or MOS transistor) having a switch control terminal, an input terminal and an output terminal. The current is controlled by the control end of the switch to flow and be disconnected between the input end and the output end.
Specifically, in this embodiment, the first switching device Q1 is implemented by an NPN transistor. At this time, the base of the NPN transistor is connected as an input terminal to the main control unit (i.e., MCU) through the first resistor R1, and the collector of the NPN transistor is connected as a switch control terminal to the first relay K1, and the emitter of the NPN transistor is grounded as an output terminal.
The first resistor R1 is connected in series with the first switch device Q1, the fifth resistor R5 is connected in parallel with the first switch device Q1, one end of the first resistor R1 is connected with a main control unit (namely MCU), the other end of the first resistor R1 is connected with a switch control end of the first switch device Q1, an output end of the first switch device Q1 is grounded, and the first resistor R1 and the second resistor R2 form a voltage division structure to prepare for subsequently providing proper voltage for the first switch device Q1.
The first relay K1 is connected between the first dc motor M1 and the power supply. The first relay K1 includes a first diode D1 (functioning as a freewheeling), and specifically, when the coil of the first relay K1 is de-energized, self-induced electromotive force is generated across the de-energized coil to cause destruction. Therefore, the first diode D1 is connected in reverse parallel across the coil of the first relay K1, providing a discharging current loop (free-wheeling) for the self-induced electromotive force.
The circuits of the second dc switch unit and the step switch unit are similar to those of the first dc switch unit, and the functions of the specific components are not described in detail, and reference may be made to the contents of the first dc switch unit.
The second direct current switching unit includes a third relay K3, a third switching device Q1, a third resistor R3, and a seventh resistor R7. The input end of the second dc switch unit is connected to the second output end group (BOUT1, BOUT2) of the driving unit 10, and the output end is connected to the second dc motor M2.
Specifically, in this embodiment, the third switching device Q3 is implemented by an NPN transistor. At this time, the base of the NPN transistor is connected as an input terminal to the main control unit (i.e., MCU) through the third resistor R3, the collector of the NPN transistor is connected as a switch control terminal to the third relay K3, and the emitter of the NPN transistor is grounded as an output terminal.
The third resistor R3 is connected in series with the third switching device Q3, the seventh resistor R7 is connected in parallel with the third switching device Q3, one end of the third resistor R3 is connected with a main control unit (namely MCU), the other end of the third resistor R3 is connected with a switch control end of the third switching device Q3, and the output end of the third switching device Q3 is grounded. The third relay includes a third diode D3, and the third relay K3 is connected between the second direct current motor M2 and the power supply.
The step switch unit includes a second switching device Q2, a second relay K2, a second resistor R2, and a sixth resistor R6; the second resistor R2 is connected in series with the second switching device Q2, and the sixth resistor R6 is connected in parallel with the second switching device Q2; one end of a second resistor R2 is connected with the driving unit, the other end of the second resistor R2 is connected with the switch control end of a second switch device Q2, and the output end of the second switch device Q2 is grounded; the second relay K2 includes a second diode D2, and the second relay K2 is connected between the stepping motor M3 and the power supply.
Specifically, in this embodiment, the second switching device Q2 is implemented by an NPN transistor. At this time, the base of the NPN transistor is connected as an input terminal to the main control unit (i.e., MCU) through the second resistor R2, the collector of the NPN transistor is connected as a switch control terminal to the second relay K2, and the emitter of the NPN transistor is grounded as an output terminal.
The step switch unit further includes a fourth switching device Q4, a fourth relay K4, a fourth diode D4, a fourth resistor R4, and an eighth resistor R8; the fourth resistor R4 is connected in series with the fourth switching device Q4, and the eighth resistor R8 is connected in parallel with the fourth switching device Q4; one end of a fourth resistor R4 is connected with the driving unit, the other end of the fourth resistor R4 is connected with the switch control end of the second switch device Q2, and the output end of the fourth switch device Q4 is grounded; the fourth relay K4 includes a fourth diode D4, and the fourth relay K4 is connected between the stepping motor M3 and the power supply.
Specifically, in this embodiment, the fourth switching device Q4 is implemented by an NPN transistor. At this time, the base of the NPN transistor is connected as an input terminal to the main control unit (i.e., MCU) through the fourth resistor R4, the collector of the NPN transistor is connected as a switch control terminal to the fourth relay K4, and the emitter of the NPN transistor is grounded as an output terminal.
It should be noted that the main control unit is not shown in fig. 2, and the signals output by the main control unit connected to the switching devices in fig. 2 are only for convenience of understanding and do not represent actual signals. The first switching device Q1 should receive the same signal as the third switching device Q3, and the second switching device Q2 should receive the same signal as the fourth switching device Q4.
The circuit shown in fig. 2 controls the use process of two direct current motors as follows:
when the driving unit 10 is a PT5139 chip, and the enabling terminal SLEPN of the driving unit 10 receives a high level signal input from the power supply terminal, the PT5139 chip is activated, and two input terminal groups (a first input terminal group: AIN1 and AIN2, a second input terminal group: BIN1 and BIN2) and two output terminal groups (a first output terminal group: AOUT1 and AOUT2, and a second input terminal group: BOUT1 and BOUT2) of the PT5139 chip can normally operate. At this time, if the first switching device Q1 and the third switching device Q3 do not receive the valid first signal and the valid third signal from the MCU, the first switching device Q1 and the third switching device Q3 are in an off state, the first relay K1 and the third relay K3 are turned off, and the two direct current motors (M1 and M2) do not work; when the MCU outputs the active first signal and the third signal (assuming high level is active), the bases (input terminals) of the first switching device Q1 and the third switching device Q3 provide a relatively high voltage to turn on the first switching device Q1 and the third switching device Q3; when the first switching device Q1 and the third switching device Q3 are turned on once, the coils in the first relay K1 and the third relay K3 are electrified, the input quantity (excitation quantity) begins to change, and when the change of the input quantity (excitation quantity) reaches a specified requirement, the first relay K1 and the third relay K3 are closed, and signals input by the MCU received by the two input end groups (the first input end group: AIN1 and AIN2 and the second input end group: BIN1 and BIN2) of the driving unit 10 are matched, so that the two direct current motors (M1 and M2) can be simultaneously controlled and normally work.
The circuit implementation is a process of simultaneously controlling two dc motors (M1 and M2). In practice, the circuit may also enable separate control of the first dc motor (M1) or the second dc motor (M2).
The circuit shown in fig. 2 controls a stepper motor M3 to be used as follows:
the driving unit 10 is a PT5139 chip, and when the enabling terminal SLEPN of the driving unit 10 receives a high level signal input from the power supply terminal, the PT5139 chip is activated, and two input terminal groups (a first input terminal group: AIN1 and AIN2, a second input terminal group: BIN1 and BIN2) and two output terminal groups (a first output terminal group: AOUT1 and AOUT2, and a second input terminal group: BOUT1 and BOUT2) of the PT5139 chip can normally operate. At this time, if the second switching device Q2 and the fourth switching device Q4 do not receive the valid second signal and the valid fourth signal from the MCU, the second switching device Q2 and the fourth switching device Q4 are in an off state, the second relay K2 and the fourth relay K4 are turned off, and the stepping motor M3 does not work; when the MCU outputs the active second signal and the active fourth signal (assuming low level active), the bases (input terminals) of the second switching device Q2 and the fourth switching device Q4 provide a relatively low voltage to turn on the second switching device Q2 and the fourth switching device Q4; once the second switching device Q2 and the fourth switching device Q4 are turned on, the second relay K2 and the coil in the relay of the fourth relay K4 are energized, and the input quantity (excitation quantity) starts to change, when the change of the input quantity (excitation quantity) reaches the specified requirement, the second relay K2 and the fourth relay K4 are closed, and then the normal operation of the stepping motor M3 can be realized by matching signals input by the MCU received by the two input end groups (the first input end group: AIN1, AIN2, the second input end group: BIN1 and BIN2) of the driving unit 10.
In this embodiment, the relationship between the dc motor control circuit and the stepping motor M3 control circuit is specifically that when the stepping switch unit is closed, the first dc switch unit and the second dc switch unit are disconnected; when any one of the first direct current switch unit and the second direct current switch unit is closed, the stepping switch unit is disconnected.
From the above, it can be known that, with the composite motor control circuit of the present embodiment, it is possible to control two dc motors M1, M2 and/or one stepping motor M3 simultaneously only by one driver, or to control one dc motor separately, so as to realize smaller size and lower cost of the control circuit, and also realize application of motor cooperative control occasions, so as to diversify the application occasions of the two types of motors.
Another embodiment of the present invention provides another composite motor control circuit, please refer to fig. 3.
Fig. 3 is another specific circuit schematic diagram corresponding to the circuit block diagram shown in fig. 1, and therefore, most contents of this embodiment can also be combined with corresponding contents of the previous embodiment.
The general structure of fig. 3 is the same as that of fig. 2, and the corresponding circuit control principle is basically the same. The only difference is that the function of the switching unit is implemented in fig. 3 with an analog switch (comprising eight analog switch circuits and a logic circuit).
In fig. 3, the first dc switch unit includes a first analog switch circuit T1, a second analog switch circuit T2, and a logic circuit. A first analog switch circuit T1 is connected between the first output terminal AOUT1 of the first output terminal group and the first direct current motor M1, and the second analog switch T2 circuit is connected between the second output terminal AOUT2 of the first output terminal group and the first direct current motor M1.
The second dc switching unit includes a third analog switching circuit T3, a fourth analog switching circuit T4, and a logic circuit. The third analog switch T3 is connected between the first output port BOUT1 of the second output terminal group and the second dc motor M2, and the fourth analog switch T4 is electrically connected between the second output port BOUT2 of the second output terminal group and the second dc motor M2.
The step switch unit includes a fifth analog switch circuit T5, a sixth analog switch circuit T6, a seventh analog switch circuit T7, an eighth analog switch circuit T8, and a logic circuit. A fifth analog switch circuit T5 is connected between the first output port AOUT1 of the first output terminal group and the stepping motor M3, and the sixth analog switch circuit T6 is connected between the second output port AOUT2 of the first output terminal group and the stepping motor M3; the seventh analog switch circuit T7 is connected between the first output port BOUT1 of the second output terminal group and the stepping motor M3, and the eighth analog switch circuit T8 is connected between the second output port BOUT2 of the second output terminal group and the stepping motor M3.
Note that, as in the above embodiment, when the fifth analog switch circuit T5, the sixth analog switch circuit T6, the seventh analog switch circuit T7, and the eighth analog switch circuit T8 are closed (i.e., the step switch unit is closed), the first analog switch circuit T1, the second analog switch circuit T2 (i.e., the first dc switch unit), the third analog switch circuit T3, and the fourth analog switch circuit T4 (i.e., the second dc switch unit) are opened; when any one of the first analog switch circuit T1, the second analog switch circuit T2 (i.e., the first dc switch unit), the third analog switch circuit T3, and the fourth analog switch circuit T4 (i.e., the second dc switch unit) is closed, the fifth analog switch circuit T5, the sixth analog switch circuit T6, the seventh analog switch circuit T7, and the eighth analog switch circuit T8 (i.e., the step switch unit) are turned off.
Please refer to fig. 2 for the rest of fig. 3.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. A composite motor control circuit, comprising:
a power supply terminal of the power supply;
the driving unit is a double-bridge motor driver, an enabling end of the driving unit is connected with a power supply end of the power supply, the driving unit comprises a first output end group and a second output end group, the first output end group comprises a first output port and a second output port, and the second output end group comprises a first output port and a second output port;
the switching unit comprises a first direct current switch unit, a second direct current switch unit and a stepping switch unit;
the motor unit comprises a first direct current motor, a second direct current motor and a stepping motor;
the first direct current switch unit is connected between the first output end group and a first direct current motor;
the second direct current switch unit is connected between the second output end group and the second direct current motor;
the step switch unit is connected among the first output end group, the second output end group and the step motor.
2. A composite motor control circuit according to claim 1, wherein the first dc switch unit includes a first switching device, a first relay, a first resistor, and a fifth resistor; one end of the first resistor is connected with the main control unit, and the other end of the first resistor is connected with the switch control end of the first switch device; the output end of the first switching device is grounded; the first relay is connected between the first switching device and the power source.
3. A composite motor control circuit according to claim 2, wherein the second direct current switching unit includes a third switching device, a third relay, a third resistor, and a seventh resistor; one end of the third resistor is connected with the main control unit, the other end of the third resistor is connected with the switch control end of the third switching device, and the output end of the third switching device is grounded; the third relay is connected between the third switching device and the power supply.
4. A composite motor control circuit according to claim 3, wherein said step switch unit includes a second switching device, a second relay, a second resistor, and a sixth resistor; one end of the second resistor is connected with the main control unit, the other end of the second resistor is connected with the switch control end of the second switch device, and the output end of the second switch device is grounded; the second relay is connected between the second switching device and the power supply;
the step switch unit further comprises a fourth switching device, a fourth relay, a fourth resistor and an eighth resistor; the fourth resistor is connected in series with the fourth switching device, and the eighth resistor is connected in parallel with the fourth switching device; one end of the fourth resistor is connected with the main control unit, the other end of the fourth resistor is connected with the switch control end of the second switch device, and the output end of the fourth switch device is grounded; the fourth relay is connected between the second switching device and the power supply.
5. The composite motor control circuit according to claim 4, wherein the first switching device is an NMOS transistor or an NPN transistor; the second switching device is an NMOS tube or an NPN tube; the third switching device is an NMOS tube or an NPN tube; the fourth switching device is an NMOS tube or an NPN tube.
6. The composite motor control circuit of claim 5, wherein the master control unit is an MCU.
7. A composite motor control circuit according to claim 1, wherein the switching unit comprises an analog switch.
8. A composite motor control circuit according to claim 7, wherein the analog switch comprises an analog switch logic circuit, a first analog switch circuit, a second analog switch circuit, a third analog switch circuit, a fourth analog switch circuit, a fifth analog switch circuit, a sixth analog switch circuit, a seventh analog switch circuit, an eighth analog switch circuit;
the first analog switch circuit is connected between a first output port of the first output end group and the first direct current motor, and the second analog switch circuit is connected between a second output port of the first output end group and the first direct current motor;
the third analog switch circuit is connected between the first output port of the second output end group and the second direct current motor, and the fourth analog switch circuit is connected between the second output port of the second output end group and the second direct current motor;
the fifth analog switch circuit is connected between the first output port of the first output end group and the stepping motor, and the sixth analog switch circuit is connected between the second output port of the first output end group and the stepping motor; the seventh analog switch circuit is connected between the first output port of the second output terminal group and the stepping motor, and the eighth analog switch circuit is connected between the second output port of the second output terminal group and the stepping motor.
9. The hybrid motor control circuit of claim 8 wherein the analog switch model is MAX4824, MAX4800A, MAX4802A, MAX308CPE, or MC 33298.
10. A composite motor control circuit according to claim 1, wherein the drive unit is a chip of type DRV8833 or PT 5139.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328447.1U CN214506917U (en) | 2020-12-30 | 2020-12-30 | Composite motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328447.1U CN214506917U (en) | 2020-12-30 | 2020-12-30 | Composite motor control circuit |
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| CN214506917U true CN214506917U (en) | 2021-10-26 |
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| CN202023328447.1U Active CN214506917U (en) | 2020-12-30 | 2020-12-30 | Composite motor control circuit |
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