May 22, 2014 #1 A amit bonage Newbie level 3 Joined May 21, 2014 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 21 hi, Can anybody answer why these diodes are connected in rev bias? here is the link to my question. (those are to regulate the voltage but how come a simple diode works in reverse bias?) https://electronics.stackexchange.c...gn-a-protection-clipper-circuit-for-adc-input
hi, Can anybody answer why these diodes are connected in rev bias? here is the link to my question. (those are to regulate the voltage but how come a simple diode works in reverse bias?) https://electronics.stackexchange.c...gn-a-protection-clipper-circuit-for-adc-input
May 22, 2014 #2 yadavvlsi Advanced Member level 3 Joined Nov 19, 2010 Messages 977 Helped 487 Reputation 972 Reaction score 459 Trophy points 1,343 Location Bangalore, India Activity points 6,991 Reverse biased zener diode acts as voltage regulator. http://amrita.vlab.co.in/?sub=1&brch=282&sim=1207&cnt=1
Reverse biased zener diode acts as voltage regulator. http://amrita.vlab.co.in/?sub=1&brch=282&sim=1207&cnt=1
May 22, 2014 #3 J johnjoe Advanced Member level 2 Joined May 11, 2009 Messages 554 Helped 130 Reputation 260 Reaction score 124 Trophy points 1,323 Activity points 4,012 Maybe you mean the second picture: Just simulate in your brain what happens if the input signal becomes larger as VCC or smaller as GND ;-).
Maybe you mean the second picture: Just simulate in your brain what happens if the input signal becomes larger as VCC or smaller as GND ;-).
May 22, 2014 #4 D dick_freebird Advanced Member level 7 Joined Mar 4, 2008 Messages 9,230 Helped 2,343 Reputation 4,707 Reaction score 2,583 Trophy points 1,393 Location USA Activity points 73,239 They are reverse biased because you don't want anything from them under normal operation. They are there so you survive abnormal overvoltage.
They are reverse biased because you don't want anything from them under normal operation. They are there so you survive abnormal overvoltage.