Are batteries a thing of the past? - Page 3 - Router Forums
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post #21 of 23 (permalink) Old 04-14-2019, 09:24 AM Thread Starter
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Hi stranger, I really did think of doing just that James. Besides capacitors it appears that a great deal of research both commercial and hobbyist is being undertaken with different methods of producing Hydrogen generators suitable for cars. I doubt that it will be long before these are being used in production cars, making Shorten's promise of outlawing petrol driven cars I think in 2022 but I could be wrong with the year.

For overseas members Bill Shorten is leader of the Labor party, a party controlled by the militant unions and are BIG spenders producing HUGE deficits to be cleared up each time the Liberal party gets back into power. Our Federal elections are due very soon.
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post #22 of 23 (permalink) Old 04-14-2019, 09:26 AM Thread Starter
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Good post Paul.
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post #23 of 23 (permalink) Old 04-14-2019, 09:42 AM
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Quote:
Originally Posted by harrysin View Post
In my audio days 10,000 micro-farad was as high as was used in car audio. Panasonic video cassette recorders used a 3 farad super cap. to maintain the clock/timer in the event of power failure and that was in the 80's.
Harry, back when LED displays were still fairly young, I built an LED clock with a CMOS (low power) clock chip. I separated the supply for the display from the supply for the clock chip and used a large surplus capacitor only on its supply. To accomplish the same thing as the VCR you mentioned. The clock chip counted the 60 Hz of our AC power for timing. So during a short power failure it would lose a little time but keep the time as it was before the power failure, often not needing to be reset. The display was off during the power failure. I was surprised that it worked so well, I could unplug the clock and quickly move to another location and plug it in without getting the dreaded flashing 12:00.

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