초록 ▼

A compressor drive system that includes a thermostat producing a signal indicating the measured air temperature, a modulation control circuit connected to the thermostat to produce a motor drive signal from the temperature signal and which is output to a motor drive switching bridge circuit. The mot

A compressor drive system that includes a thermostat producing a signal indicating the measured air temperature, a modulation control circuit connected to the thermostat to produce a motor drive signal from the temperature signal and which is output to a motor drive switching bridge circuit. The motor drive switching bridge circuit is connected to a rectifier that converts single phase alternating current to direct current. The switching bridge uses the motor drive signal from the modulation control circuit and the rectifier output to produce multiphase power including a speed control signal imposed on the power for regulating speed. A motor connected to drive a compressor is included. The motor is powered by the motor drive switching bridge circuit multiphase power output. The speed of the motor is controlled as a function of the temperature signal.

대표청구항 ▼

A compressor drive system comprising: rectifier means for converting externally supplied single phase alternating current into direct current as an output; temperature sensing means for producing a signal indicating ambient air temperature; modulation control means for receiving the temperature sign

A compressor drive system comprising: rectifier means for converting externally supplied single phase alternating current into direct current as an output; temperature sensing means for producing a signal indicating ambient air temperature; modulation control means for receiving the temperature signal and producing multiphase power and speed control signals; motor drive switching bridge circuit means for modulating the rectifier output in accordance with the multiphase power and control output signals and producing multiphase power output at a voltage level and at a frequency in response thereto; and a motor connected to receive the multiphase power output from the bridge circuit means and connected to drive an air conditioner compressor at a speed in accordance with the temperature signal.