Matching circuit and driving circuit for driving bipolar stepping motor
A stepper motor, bipolar technology, applied in the direction of motor generator control, electrical components, control systems, etc., can solve the problems of increased cost and difficult change, so as to reduce the difficulty of transformation, normal operation of the circuit, and reduce the risk of burning Effect
Pending Publication Date: 2022-08-05
CHANGZHOU GIAN TECH
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Problems solved by technology
At the same time, because the unipolar stepper motor driver is usually integrated on the customer's motherboard, it is difficult to change and increases the cost
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[0024] See image 3 , the matching circuit for driving bipolar stepping motor in the present invention includes four transistors Q1, Q2, Q3 and Q4, four diodes D1, D2, D3 and D4, four resistors R1, R2, R3 and R4 , and four terminals AOUT1, AOUT2, BOUT1 and BOUT2 for connecting with the lead wire of the bipolar stepper motor; the base of the transistor Q1 is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the collector of the transistor Q2 The electrode is connected to the terminal AOUT2; the base of the transistor Q2 is connected to one end of the resistor R2, and the other end of the resistor R2 and the collector of the transistor Q1 are connected to the terminal AOUT1;
[0025] The base of the transistor Q1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the anode of the diode D1, the cathode of the diode D1 and the collector of the transistor Q2 are connected to the terminal AOUT2; th...
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The invention relates to a matching circuit and a driving circuit for driving a bipolar stepping motor. The matching circuit comprises four triodes Q1, Q2, Q3 and Q4, four resistors R1, R2, R3 and R4, and four terminals AOUT1, AOUT2, BOUT1 and BOUT2 which are used for being connected with outgoing lines of the bipolar stepping motor, a base electrode of the triode Q1 is connected with one end of a resistor R1, and the other end of the resistor R1 and a collector electrode of the triode Q2 are connected to a wiring terminal AOUT2 in tandem; a base electrode of the triode Q2 is connected with one end of a resistor R2, and the other end of the resistor R2 and a collector electrode of the triode Q1 are connected to a terminal AOUT1 in tandem; a base electrode of the triode Q3 is connected with one end of a resistor R3, and the other end of the resistor R3 and a collector electrode of the triode Q4 are connected to a wiring terminal BOUT2 in tandem; the base electrode of the triode Q4 is connected with one end of a resistor R4, and the other end of the resistor R4 and the collector electrode of the triode Q3 are connected to a wiring terminal BOUT1 in tandem. According to the invention, the unipolar stepping motor driver can be used for driving the bipolar stepping motor, so that the change difficulty is greatly reduced.
Description
technical field [0001] The invention relates to a stepping motor driving circuit, in particular to a matching circuit and a driving circuit for driving a bipolar stepping motor. Background technique [0002] The drive control of the bipolar stepper motor generally needs to be connected with the Darlington tube through a special driver for the bipolar stepper motor. The Darlington tube receives the input signal from the MCU and other programmable devices, inputs the level pulse to the bipolar stepper motor dedicated driver, and then controls the bipolar stepper motor by the output voltage of the bipolar stepper motor dedicated driver. For specific connections, please refer to the appendix figure 1 . The driving of the unipolar stepper motor is relatively simple, and it can be directly connected to the unipolar stepper motor through the Darlington tube. For details, please refer to the appendix. figure 2 . [0003] There are a large number of unipolar stepping motor drive...
Claims
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IPC IPC(8): H02P8/02H02P8/36
CPCH02P8/02H02P8/36
Inventor 于谦
Owner CHANGZHOU GIAN TECH