Single-phase electromagnetic deceleration type permanent magnet low-speed synchronous motor fast braking circuit

The invention discloses a single-phase electromagnetic deceleration type permanent magnet low-speed synchronous motor fast braking circuit. The circuit of the invention comprises a control circuit and a fast braking type driving circuit. The circuit of the invention specifically includes a voltage-stabilized power source module U0, a clock oscillator U5, a processor IC1, a left solid-state relay U1, a middle solid-state relay U2, a right solid-state relay U3, a diode D1, a resistor R1, a phase-splitting capacitor C1, a filtering capacitor C2, a single-phase electromagnetic deceleration type permanent magnet low-speed synchronous motor M and the like. According to the single-phase electromagnetic deceleration type permanent magnet low-speed synchronous motor fast braking circuit of the invention, in the mutual conversion and transition processes of parking, forward rotation and reverse rotation of the single-phase electromagnetic deceleration type permanent magnet low-speed synchronous motor, the diode and the alternating current solid-state relays are utilized to simultaneously apply half-wave rectifying voltage to windings of two phases so as to shorten parking and braking time, and therefore, positioning control performance of the single-phase electromagnetic deceleration type permanent magnet low-speed synchronous motor can be greatly improved. The single-phase electromagnetic deceleration type permanent magnet low-speed synchronous motor fast braking circuit of the invention has the advantages of being simple and reliable, and high cost performance, and is especially suitable for positioning control and reciprocating control of a small-power motion mechanism.