Skip to main content
Electrical Engineering

Return to Question

After using the Traic, i replaced it with four SCRs, the image given. i am now to triger these in pairs. would i need to trigegr each SCR with a seperate pulse or a pulse for a pair?
Source Link
Noble
Noble
  • 1
  • 2

Ienter image description hereI have used a TRIAC and an MOC3021 opto-coupler connected to a PIC16F887A to simulate a a full wave rectifier. I am now to design the same using an SCR h-Bridge. My question is, in order to trigger the SCRs, do i need 4 separate triggers for each SCR? or could i use two trigger pulses, one for each pair of the SCRs? I would appreciate any advice. am fairly new to the field. Thanks. The following is the layout of the circuit. Specs:220VAC, 60 Hz. Load 1Kohms. These were provided by my senior supervisor.

I have used a TRIAC and an MOC3021 opto-coupler connected to a PIC16F887A to simulate a a full wave rectifier. I am now to design the same using an SCR h-Bridge. My question is, in order to trigger the SCRs, do i need 4 separate triggers for each SCR? or could i use two trigger pulses, one for each pair of the SCRs? I would appreciate any advice. am fairly new to the field. Thanks.

enter image description hereI have used a TRIAC and an MOC3021 opto-coupler connected to a PIC16F887A to simulate a a full wave rectifier. I am now to design the same using an SCR h-Bridge. My question is, in order to trigger the SCRs, do i need 4 separate triggers for each SCR? or could i use two trigger pulses, one for each pair of the SCRs? I would appreciate any advice. am fairly new to the field. Thanks. The following is the layout of the circuit. Specs:220VAC, 60 Hz. Load 1Kohms. These were provided by my senior supervisor.

Source Link
Noble
Noble
  • 1
  • 2

Scr triggering design, shuld i use four pulses for each SCR ot two for each pair of the SCR?

I have used a TRIAC and an MOC3021 opto-coupler connected to a PIC16F887A to simulate a a full wave rectifier. I am now to design the same using an SCR h-Bridge. My question is, in order to trigger the SCRs, do i need 4 separate triggers for each SCR? or could i use two trigger pulses, one for each pair of the SCRs? I would appreciate any advice. am fairly new to the field. Thanks.