Re: Electronic load advice

On Sat, 2 Feb 2008 17:46:43 -0800 (PST), Richard Henry <pomerado@xxxxxxxxxxx>
wrote:

:I need to test some battery packs. We predict the load of the target
:product will cycle from high power (80 W for 10 ms) to low power (5 W
:for 240 ms) during operation. I would like to simulate that load
:including the dynamics in the battery test. I have found a few loads
:for rent at Electrorent, but before I commit, does anyone have some
:suggestions? Precautions?


I have a Kikusui PLZ152W electronic load
http://db3.kikusui.co.jp/fmi/xsl/kai/detail.xsl?&IdFamily=0029

(read the operations manual for load switching to see how it operates.)

This electronic load can handle 2 loads A and B, with potentiometer adjustable
switching times such that the total load cycle period (Load A + load B) is 200mS
(not quite what you want but I am sure it would be close enough for practical
purposes). The load can be set to CC or CR depending on what you want. It also
has a BNC connector so you can monitor the load current duty cycle on an
oscilloscope.

Other loads may require connection to a PC for load programming but the PLZ152W
is totally manual in standard form and is a nice little performer.
.