On 26-Oct-15 6:29 PM, Scott Aldous wrote:
_Table 5 (Capacitor Energy)_
For the energy from a capacitor, the table takes into account
capacitance and voltage, so both need to be taken into account since
the equation for available energy from a capacitor includes both
variables. This is similar
3:58 PM
To: Ronald Pickard ;
EMC-PSTC@LISTSERV.IEEE.ORG
Subject: RE: [PSES] EN 62368-1 query
Hi Ron:
>But, a capacitor charged to such an open-circuit voltage need to also be rated
>for that voltage (probably a DUH moment). Correct?
Yes.
>Is Table 2 of IEC 61201:1992 equivalent t
Hi Ron:
>But, a capacitor charged to such an open-circuit
voltage need to also be rated for that voltage
(probably a DUH moment). Correct?
Yes.
>Is Table 2 of IEC 61201:1992 equivalent to Table
A.2 of IEC 61201:2007?
Yes.
>ECMA 287 Table 3.4 ES1 values decrease from 60
rd to your reply.
Best Regards
Ron Pickard
Regulatory Compliance Engineer
Compound Photonics
D | +1 (602) 883-8039
From: Richard Nute [mailto:ri...@ieee.org]
Sent: Monday, October 26, 2015 12:42 PM
To: Ronald Pickard ;
EMC-PSTC@LISTSERV.IEEE.ORG
Subject: RE: [PSES] EN 62368-1 query
Hi Ron:
The
Hi Ron:
The values in Table 5 are taken, directly, from
IEC 61201, Table A.2 and Figure A.1 (notes 1 and
2). See Annex A, IEC 61201, for further
information about these values.
Upeak is not the correct term; the voltage is the
open-circuit voltage to which the capacitor is
charged.
Hi Ronald,
It may be helpful for you to purchase a copy of 62368-2, which has the
rationale for the requirements in 62368-1.
Others can provide more detail and probably explain better than I, but in
general Table 4 has voltage *or* current limits, and Table 5 has
capacitance *and* voltage limits.
For all those more familiar than I with this standard, I would appreciate a
clarification.
I've just purchased EN 62368-1 (assuming IEC 62368-1, too) and have started
immersing myself in it, but in 5.2.2.3 (Table 5) ES1/ES2 voltage limits from a
charged capacitor appear to violate the ES1/ES2 v
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