19 Jan
2012
19 Jan
'12
11 p.m.
On Thu, 19 Jan 2012, Tony Duell wrote:
I am not sure I understnd the point of the monitor
circuit.
[snip]
If the capacitor fails open, or high ESR, or loses
capacitance, the
ripple on that supply line will increase. A monitor could detect that,
but equally if that happens, the machine stops working correctly.
But it is quite possible that a monitor circuit could detect an increase
in the ripple before it was large enough to stop the machine from working
correctly, and it might be desirable to shut the machine down before the
ripple becomes excessive.
Alexey