DIRECT CURRENT ELECTRIC DRIVE Russian patent published in 1999 - IPC

FIELD: regulation and stabilization of rotation frequency of direct current electric motors. SUBSTANCE: device has electric motor which is connected to power supply through power gate and choke, high-frequency generator, regulator with rotation frequency setter. Goal of invention is achieved by introduced inductance coil, demodulator, univibrator. Output of high-frequency generator is connected through capacitor simultaneously to electric motor brush and to input of demodulator through second capacitor. Output of demodulator is connected to one input of regulator through serial circuit of comparator, univibrator and low-pass filter. Housing of electric motor is connected to global bus. EFFECT: increased functional capabilities. 3 dwg