ELECTRIC FENCE ENERGIZER. HOW IT WORKS? - Page 1
Forum section: electronics / beginners

author: kumar
author_rank: Contributor
timestamp: February 26, 2014, 12:54:25 pm
content: HI ALL,I READ SOME WHERE THAT ELECTRIC FENCE ENERGIZER GENERATES AN ESD PULSE. IS THAT TRUE?IF SO, CAN WE USE IT FOR ESD TROUBLESHOOTING. THIS EQUIPMENT IS REASONABLY PRICED BET. $50-$400, AS AGAINST A PROFESSIONAL ESD GUN USED IN COMPLIANCE TESTING.PLEASE ADVICE.

author: dr_p
author_rank: Frequent Contributor
timestamp: February 26, 2014, 01:09:47 pm
content: Of course, but then it will only be "Electric Fence Compliant", and that's not of much use.

author: Sigmoid
author_rank: Frequent Contributor
timestamp: February 26, 2014, 04:24:05 pm
content: Quote from: dr_p on February 26, 2014, 01:09:47 pmWould be an awesome ploy to market the device to cow ranchers.

author: G7PSK
author_rank: Super Contributor
timestamp: February 26, 2014, 06:25:54 pm
content: Not sure if it's an ESD pulse, all the good units will burn back any vegetation that comes into contact with the fence wire. I am pretty sure such a pulse would damage most electronics. I will try the one I have on a few diodes, 9.6 joules output, cant see even a power diode surviving that.

author: SeanB
author_rank: Super Contributor
timestamp: February 26, 2014, 07:08:52 pm
content: I tried one on a Celeron processor. The processor survived that but did not survive the arc welder test I tried afterwards.The electric fence energiser is limited by design ( and law) to 1 pulse per second and a max energy of 10J per pulse. Max voltage is limited to 10kv as well.

author: Neilm
author_rank: Super Contributor
timestamp: February 26, 2014, 07:23:29 pm
content: I doubt that the output waveform would comply with the standard. ESD guns are designed to output a specific waveform with a specific rise and fall time. It might work for indicative tests but you could not claim compliance with it.

author: Stonent
author_rank: Super Contributor
timestamp: February 27, 2014, 02:02:10 am
content: Quote from: kumar on February 26, 2014, 12:54:25 pmDidn't know if you were aware but there's something wrong with your keyboard.

author: BravoV
author_rank: Super Contributor
timestamp: February 27, 2014, 02:06:05 am
content: Quote from: Stonent on February 27, 2014, 02:02:10 amYou have to live with it, thats a typical Indian posters, they always love to use eyes catchy style in their post. I guess its a culture thing.

author: AlfBaz
author_rank: Super Contributor
timestamp: February 27, 2014, 02:30:59 am
content: I actually hand write in capitals, no wonder everyone thinks I'm loud

author: Stonent
author_rank: Super Contributor
timestamp: February 27, 2014, 02:46:23 am
content: Quote from: BravoV on February 27, 2014, 02:06:05 amYou for got the PLEASE HELP ME!!!

author: mdszy
author_rank: Unknown
timestamp: February 27, 2014, 03:05:33 am
content: Quote from: Stonent on February 27, 2014, 02:46:23 amWell, he did write PLEASE ADVICE. Which is pretty close if you ask me.

author: kumar
author_rank: Contributor
timestamp: February 27, 2014, 05:43:43 am
content: One of our equipments failed the ESD test. We have done some changes but are not sure whether it will work.Testing in labs is very expensive and one has to book the lab at least 3-4 weeks in advance.I know that the output waveform is not the same as the one generated by ESD gun used in compliance testing.So I want to know whether we can use this kind of equipmet for an indicative test before going to the lab.Please advice.

author: Stonent
author_rank: Super Contributor
timestamp: February 27, 2014, 03:50:53 pm
content: Do things right or don't do them. You may spend more money working around it than doing it right.Also just to help you out "advise" is the correct word to use. Advice is a noun and advise is a verb. I'm not picking on you personally, I just see a lot of people make that mistake.In usage "I need your advice on the purchase of a new oscilloscope.""Can you advise me as to which one you would recommend?"

author: deephaven
author_rank: Frequent Contributor
timestamp: February 27, 2014, 03:57:37 pm
content: I use one of those piezo-electric gas lighters for preliminary ESD testing.

author: granz
author_rank: Regular Contributor
timestamp: February 27, 2014, 04:48:17 pm
content: When you say "failed the ESD test" that doesn't really tell us much. There a many ESD models. For ICs the most common is the Human Body Model, or which there are several classes:(found online somewhere)0 = 0 ~ 250 V1A = 250 ~ 500 V1B = 500 ~ 1000 V1C = 1000 ~ 2000 V2 = 2000 ~ 4000 V3A = 4000 ~ 8000 V3B = > 8000 V(these also have a specific defined pulse waveform).As Stonent said, don't waste your time trying to work around a real test. The real ESD testers will produce the correct pulse waveform for the model of interest. If you just zap your device with some high-voltage pulse and it happens to survive that doesn't really tell you much. The width and tail of the pulse also matters.