Jan 23, 2007 #1 Sadegh.j Advanced Member level 3 Joined Nov 29, 2006 Messages 749 Helped 48 Reputation 98 Reaction score 15 Trophy points 1,298 Activity points 5,585 Hey How do we make a ramp generator in Orcad?
Jan 28, 2007 #2 narccizzo Full Member level 3 Joined Jan 20, 2006 Messages 173 Helped 16 Reputation 32 Reaction score 11 Trophy points 1,298 Location PATZCUARO,MICHOACAN,MEXICO Activity points 2,819 you have to place a pulse generator and adjust rise time, Added after 52 seconds: on time, fall time and off time. regards
you have to place a pulse generator and adjust rise time, Added after 52 seconds: on time, fall time and off time. regards
Jan 30, 2007 #3 Sadegh.j Advanced Member level 3 Joined Nov 29, 2006 Messages 749 Helped 48 Reputation 98 Reaction score 15 Trophy points 1,298 Activity points 5,585 The problem is a synch voltage should be given to the circuit and the ramp generation should be synchronized with it.
The problem is a synch voltage should be given to the circuit and the ramp generation should be synchronized with it.
Feb 2, 2007 #4 narccizzo Full Member level 3 Joined Jan 20, 2006 Messages 173 Helped 16 Reputation 32 Reaction score 11 Trophy points 1,298 Location PATZCUARO,MICHOACAN,MEXICO Activity points 2,819 ohh, I see try changing the delay time parameter.
Feb 18, 2007 #5 narccizzo Full Member level 3 Joined Jan 20, 2006 Messages 173 Helped 16 Reputation 32 Reaction score 11 Trophy points 1,298 Location PATZCUARO,MICHOACAN,MEXICO Activity points 2,819 or implement an integrator with an opamp and use a transistor to discharge the capacitor of the integrator, and there you have your ramp generator with synch input.
or implement an integrator with an opamp and use a transistor to discharge the capacitor of the integrator, and there you have your ramp generator with synch input.
Feb 18, 2007 #6 K Kurniawan Junior Member level 1 Joined Sep 5, 2006 Messages 18 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,355 use 555 as ramp generator, see datasheet NE 555