A drive circuit is provided and includes a rectification circuit, a buck converter, a first inverter,
and a second inverter. The rectification circuit is configured to rectify a first AC voltage signal …

A system and method for a compressor may include an inverter drive connected to the
compressor that receives electric power and modulates a speed of the compressor by …

0003. In general, the air conditioner is divided into an integration type air conditioner and a
separation type air conditioner. The integration type air conditioner and the sepa ration type …

A PFC circuit is provided. A first bridge rectifier receives an AC voltage. A power converter
includes a switch and receives an output of the first bridge rectifier, converts the output to a …

(57) ABSTRACT A system and method for evaluating parameters for a refrig eration system
having a variable speed compressor is pro vided. A compressor is connected to a …

A PFC circuit is provided. A bridge rectification circuit receives an AC voltage and generates
a rectified AC voltage. A power converter converts the rectified AC voltage to a first DC …

A system and method for monitoring an overheat condition of a compressor is provided. A
compressor connected to an evaporator. A suction sensor outputs a suction signal …

A drive includes an inverter power circuit that applies power to an electric motor of a
compressor from a direct current (DC) voltage bus. A power factor correction (PFC) circuit …

(57) ABSTRACT A system and method for calculating parameters for a refrig eration system
having a variable speed compressor is pro vided. A compressor is connected to a …

(57) ABSTRACT A drive includes: an inverter power circuit that applies power to an electric
motor of a compressor from a direct current (DC) voltage bus; and a power factor correction …