Patent ID: 8198854

Claim:
A starting circuit for a single-phase AC motor, the single-phase AC motor comprising a main winding ( 1 ) and a starting winding ( 6 ), said starting circuit comprising: a detecting circuit ( 2 ); a rectifying circuit ( 3 ); a triggering circuit ( 4 ); and a switch ( 5 ); wherein said detecting circuit ( 2 ) is connected in series with said main winding ( 1 ); said switch ( 5 ) is connected in series with said starting winding ( 6 ); said detecting circuit ( 2 ) transfers current parameters of said main winding ( 1 ) into detecting signals; said rectifying circuit ( 3 ) processes said detecting signals and transmits said detecting signals to said triggering circuit ( 4 ); said triggering circuit ( 4 ) controls said switch ( 5 ) according to said detecting signals whereby controlling power-on and power-off of said starting winding ( 6 ); and said triggering circuit ( 4 ) is a hysteresis comparing circuit.