Single-phase full-wave phase rectifier circuit 02

The closed-loop part is composed of two sets of vertical and horizontal systems. The working principle of the circuit is briefly described as follows: the stepper motor of the CNC circuit issues a control
command. After the receiver receives the signal , it is converted into a DC signal through phase-sensitive rectification, and then After being amplified by the operational amplifier, the conduction angle of the thyristor is controlled, and the voltage on the
fixed winding of the three-phase AC asynchronous motor is changed , that is, the strength of the rotating magnetic field is changed, and the stepless speed regulation of the motor is realized
. 'In order to make the system work stably and improve the processing accuracy and mechanical property hardness, the tachometer generator (cs) speed negative feedback is introduced.
  The longitudinal (Z) l.lkw and transverse (X) 550w AC motor drives the lathe screw to perform feed motion to make the lathe work.
  2) Phase-sensitive rectification: The transmitter (FZ) winding and the receiver (sz) three-phase winding are connected in one-to-one correspondence. 110V AC voltage is supplied to the transmitter.
See the magnetic winding. The initial angle is . The output voltage and phase at both ends of the stator winding of the receiver can reflect the angular displacement of the transmitter rotor, which reflects
the size and direction of the error angle between the transmitter and the transmitter. When balanced, the output voltage is zero, otherwise, an error occurs and a voltage signal is output. Figure
2-28 is a single-phase full-wave phase-sensitive rectifier circuit . The two groups work alternately. There is a voltage output on the resistor 5.lk, and RP1 is used to adjust the balance. The rectification
converts the AC into a DC signal , which is sent to the A terminal of the speed loop (ST) of the operational amplifier through RP2 for amplification.