Hallo Richard,
Forget about the capacitor. At 14 volts it can only hold 14 x 0,022 =0,3
Coulombs. A 10A source charges it in 0,3 / 10= 0,03 seconds.
Your only large "capacitor" is the battery. If might support a 10A
charging current for a little while, drawing down the bus voltage, but
12V seems low.
Regards,
Jan de Jong
Richard Lamprey wrote:
> Thanks Craig and Mike for your inputs. I have limited knowledge of
> electrics, but my thoughts about the sudden jump from 12 V to 14 Volt
> are that after startup the vast 22,000 microfarad capacitor is soaking
> up voltage until it has reached full capacitance; only after full
> capacity is reached, the system achieves the full 14 Volts, and the
> sudden jump occurs. If the engine has been run in the last couple of
> days, the system reaches 14 Volts immediately, since the capacitor has
> not in the short time 'bled' its charge. The delay and jump only
> occur after the system has sat without running for a long while.
>
> The same applies to the mysterious noise, ie doesnt occur after recent
> running... but I will apply my stethoscope to the regulator to see if
> thats the source.
>
> Yes weather here is fine, lovely sunshine all day! But the politics
> and post election violence has been disastrous for the country (as you
> may have seen on TV).
>
> Regards to all
> Richard
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>
>
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