26 Jul
2000
26 Jul
'00
7:08 a.m.
Hi
I'm still puzzled over the 600V reading. My guess
is that there is a problem in the meter. As far as I know,
the inputs are usualy configured as a doubler when used
with 115V and a bridge when used for 220V. I don't
recall the circuit but I remember it was a clever trick
in that one could change it with a single jumper.
What a BBU?
Dwight
Douglas Quebbeman <dhquebbeman(a)theestopinalgroup.com> wrote:
--------------------- +
to BBU
|
|
+---------{ MCI 307138 }---------------+--------------------
+ve
/ \ | + |
/ \ ===== / 12k ohm
/ \ ----- \ 5%
/ \ | - /
----* *---------------------------------+----------*
| \ /| | + \
| \ / | ===== / 12k ohm
| \ / | ----- \ 5%
| \ / | | - |
| ----------{ MCI 307138 }---------------+---------------------
-ve
| | |
| | |
| | ---------------------- -
to BBU
| |
| |
| |
115v Load 115v Neutral
> > I will just ask again -- this thing does run off 115V, right?
>
I am still puzzled as to how it gets 600V without
either other large
capacitors, or a mains-frequency transformer.
Ditto.