Post History
A diode obeys the Shockley diode equation and for this circuit we have: The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current be...
Answer
#4: Post edited
by
MissMulan
·
2021-09-01T21:16:49Z (over 3 years ago)
- A diode obeys the Shockley diode equation and for this circuit we have:
- 
- The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current before the diode is destroyed:
- For the LTL-307EE at 20C we have 10^4 A Isat and Vth=0.026V
- 
(120mA).- Now in order to find the resistance we find the resistance of the resistor if max current was flowing through the diode
- 
- If we solve this equation we get:
So in order for LTL-307EE to not be damaged the resistance of R1 > 73.46Ω- Hope this helps
- A diode obeys the Shockley diode equation and for this circuit we have:
- 
- The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current before the diode is destroyed:
- For the LTL-307EE at 20C we have 10^4 A Isat and Vth=0.026V
- 
- 
- (30mA).
- Now in order to find the resistance we find the resistance of the resistor if max current was flowing through the diode
- 
- If we solve this equation we get:
- 
- So in order for LTL-307EE to not be damaged the resistance of R1 > 295.05Ω
- Hope this helps
#3: Post edited
by
MissMulan
·
2021-09-01T21:07:56Z (over 3 years ago)
- A diode obeys the Shockley diode equation and for this circuit we have:
- 
- The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current before the diode is destroyed:
- For the LTL-307EE at 20C we have 10^4 A Isat and Vth=0.026V
- 
- 
- (120mA).
- Now in order to find the resistance we find the resistance of the resistor if max current was flowing through the diode
- 
- If we solve this equation we get:
- So in order for LTL-307EE to not be damaged the resistance of R1 > 73.46Ω
- Hope this helps
- A diode obeys the Shockley diode equation and for this circuit we have:
- 
- The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current before the diode is destroyed:
- For the LTL-307EE at 20C we have 10^4 A Isat and Vth=0.026V
- 
- 
- (120mA).
- Now in order to find the resistance we find the resistance of the resistor if max current was flowing through the diode
- 
- If we solve this equation we get:
- 
- So in order for LTL-307EE to not be damaged the resistance of R1 > 73.46Ω
- Hope this helps
#2: Post edited
by
MissMulan
·
2021-09-01T20:27:59Z (over 3 years ago)
- A diode obeys the Shockley diode equation and for this circuit we have:
- 
- The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current before the diode is destroyed:
- For the LTL-307EE at 20C we have 10^4 A Isat and Vth=0.026V
- 
- 
- (120mA).
- Now in order to find the resistance we find the resistance of the resistor if max current was flowing through the diode
- 
- If we solve this equation we get:
- So in order for LTL-307EE to not be damaged the resistance of R1 > 73.46Ω
- Hope this helps
- A diode obeys the Shockley diode equation and for this circuit we have:
- 
- The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current before the diode is destroyed:
- For the LTL-307EE at 20C we have 10^4 A Isat and Vth=0.026V
- 
- 
- (120mA).
- Now in order to find the resistance we find the resistance of the resistor if max current was flowing through the diode
- 
- If we solve this equation we get:
- 
- So in order for LTL-307EE to not be damaged the resistance of R1 > 73.46Ω
- Hope this helps
#1: Initial revision
by
MissMulan
·
2021-09-01T20:25:13Z (over 3 years ago)
A diode obeys the Shockley diode equation and for this circuit we have:  The current through the diode must not pass a limit so for LTL-307EE we go to the datasheet to find the maximum current before the diode is destroyed: For the LTL-307EE at 20C we have 10^4 A Isat and Vth=0.026V   (120mA). Now in order to find the resistance we find the resistance of the resistor if max current was flowing through the diode  If we solve this equation we get:  So in order for LTL-307EE to not be damaged the resistance of R1 > 73.46Ω Hope this helps