The invention provides an energy-saving drive device for a low-
voltage electromagnetic type electric appliance. The energy-saving drive device is characterized in that by the adoption of a PWM technology, an
electricity-saving
pulse width modulation program is used for controlling
pulse width modulation to change the duty ratio, so that breakover currents of a high-power
field effect tube enter a
control mode with the duty ratio accounting for 20% of time for opening, and square
waves, with the duty ratio of 20%, of working frequency are generated; starting and stop buttons are arranged, and a single-
chip microcomputer energy-saving drive circuit module comprising an
electricity-saving program is integrated into a
control circuit of application equipment, and connected among a power source, a starting and
stop signal input end and a low-
voltage electromagnetic type electric appliance coil to form the energy-saving drive device; the energy-saving drive device can be suitable for low-
voltage electromagnetic type electric appliances of different types as long as rated voltage is provided, and reverse voltage withstand parameters of the power tube in the circuit are selected; the energy-saving module circuit can also be made into an independent product and installed along with the low-voltage electromagnetic type electric appliance; or the energy-saving module circuit is embedded into the appliance to be made into the energy-saving low-voltage electromagnetic type electric appliance.
Power consumption of the low-voltage electromagnetic type electric appliance is greatly reduced, and the defect of directly
cutting off
electricity of the low-voltage electromagnetic type electric appliance is overcome.