CIRCUIT FOR DIRECTLY DRIVING TRIAC USING PHASE CONTROL

摘要

In this case, the circuit that directly drives triac, especially when the power supply temperature (switching temperature) supplied by the subordinates, the timing time gradually increases to reach the target value, When the power supply is switched, it is gradually reduced from the switch time to control the blocked circuit.;Using the previous three stunts to run the phase electric power control circuit is usually all the staff at the same time will drive the subordinates with specific combat powerIn the load driver, control the power supply of the focus.At the same time, the power supply is immediately cut off,For a certain goal, slowly approach,Or when blocking, there is also a problem of not timely blocking the power supply under the Ministry, which is not applicable.;The present invention implements the control of the load supply power through the conduction angle control of the triac,Find out the status of all AC power supplied by subordinatesTemperature of power switch,Delay the offfe to timing, compare it with the signals detected at the above positions, and control the flow angle of Terri villain,From the moment when the power supply comes, achieve the target value with the inclination of small positive time and small government,From the moment when the power is turned on, the phase control mode of gradual power control with static elimination time and static tilt to block the power supply provides the direct drive control of Terri villain.