Connecting Zener Diode In Series
How many of you have connected two zener diode in series before? I use this method when i couldn’t get the original part number from the local electronic distributors. For example, Acer aspire have an additional audio board inside the monitor. Whenever the zener diode shorted it will cause no power problem in the Monitor. The real challenge is not about troubleshooting or finding this shorted zener diode, it was the voltage that i could not get from electronic suppliers. It was rated as 200V and if according to Philip ECG Master replacement Guide Book, it was the highest voltage in the zener diode category. For your information , the 2.4Volt zener diode was the lowest voltage if according to the replacement guide book.
The only way for me to solve this problem is to use the series connection method. I connect two 100 Volt zener diode in series, the cathode to anode of another zener diode. I got 200V and the Monitor was brought back to life again. Imagine if you do not know about this method you may end up spending more time to search for the part number or even end up can’t repair the Monitor. The good news was that the problem i mentioned above was a common fault for this ACER aspire 15″ CRT Monitor.
Do you know now how important is the theory of basic electronic is? So if you are good in practical and wish to know more about electronics-read more about electronics theory. With theory back up plus your good technical knowledge, you are only heading to the correct path. Always remember this word “Making Yourself Better Than You Were Yesterday”!
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swapnil more
September 18, 2010 at 10:18 am
thank you for sharing this kind of knowledge, even if i am not a user of acer monitor but the theory you explained looks handy.
can you explain the teory about schottkey diodes?
admin
September 18, 2010 at 9:20 pm
HI Swapnil,
Try visit this website:
http://en.wikipedia.org/wiki/Schottky_diode
Jestine
shalini singh
September 30, 2010 at 12:41 am
myself shalini,im an engg student n persuaing engg in electronics n comm...
i wanted to know more about electronics n relATED topics..
so plz help me with that.
admin
September 30, 2010 at 2:39 am
H Shalini,
Please visit http://williamson-labs.com/
Jestine
alexander m real
January 23, 2011 at 10:23 am
I want to own a blue esr meter and blue ring meter how could I'll avail these.thank you
admin
January 23, 2011 at 10:31 am
HI Alexander,
You may visit this link and buy :
http://www.electronicrepairguide.com/blue-esr-meter.html
Jestine
Fhill N. Sawit
February 1, 2011 at 10:53 pm
It's a great help for us beginners! Thanks!
benjananahary
May 20, 2011 at 8:13 am
i WOULD LIKE TO HAVE LOTS OF KNOWLEDGE ABOUT DIODE, THE THEORY OF DIODE IN GENERAL. THANKS FOR HELPING
admin
May 20, 2011 at 9:53 am
HI Benjananahary,
I suggest that you search from the internet because it has lots of info/theory about different diodes.
Jestine
Anantha Raman
November 1, 2011 at 4:13 pm
i'm trying to build a charger for my car battery. i'm having a 15v power supply. i need to regulate it down to 13.8v. i can't find any zener diode for 13.8v. need your help.. any solutions...?
admin
November 2, 2011 at 12:48 pm
HI Anantha,
Try this link:
http://www.national.com/mpf/LM/LM338.html#Overview
Jestine
rajan singh
January 16, 2012 at 7:23 pm
Sir i have made a robot and i want to introduced a camera in it. Sir please tell me from which angle i fit into robot and how i controle it.
admin
January 16, 2012 at 8:35 pm
HI Rajan,
I suggest that you search for the robotic forum as i believe there will be lots of suggestion.
Jestine