Induction type three-phase asynchronous torque motor unwinding driving circuit and method
A torque motor and three-phase asynchronous technology, which is applied in the field of induction three-phase asynchronous torque motor unwinding drive circuit, can solve the problem of requiring dozens of torque motors at least, and one or two hundred at most, wasting labor and time, and implementing Cost increase and other issues, to save manpower and time costs, reduce the effect of control costs
Active Publication Date: 2019-01-18
NEWTRY COMPOSITE
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The invention relates to the technical field of motors, in particular to an induction type three-phase asynchronous torque motor unwinding driving circuit. The circuit comprises a power supply circuit, a synchronizing signal pulse trigger circuit, a main control circuit and three trigger angle control circuits, wherein the power supply circuit is used for rectification and voltage reduction of three-phase electricity AC380 and power supply; the synchronizing signal pulse trigger circuit as an analog differential comparator circuit comprises two comparators, and the reference voltages of the two comparators are used for being separately compared with the voltage of an AC 220 unidirectional alternating-current sine wave power supply, so that a zero pulse signal is formed; the main control circuit is used for obtaining a required trigger angle signal with the zero pulse signal as a reference signal; the three trigger angle control circuits correspond to three synchronizing signal triggercircuits respectively, and when the three trigger angle control circuits are triggered at the same time, a torque motor outputs torque. Output of the motor torque is quickly achieved at low cost, so that control over constant tension of yarn is achieved. The invention further provides an induction type three-phase asynchronous torque motor unwinding driving method.
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