Page 2.8
6-CHANNEL BATTERY SIMULATOR MODULE 41-752
pickering
SECTION 2 - TECHNICAL DESCRIPTION
BATTERY SIMULATOR ON/OFF CONTROL
Each channel of the 41-752 can be independently turned off. Users need to recognise real life batteries do not
“turn off” in the way a relay (for example) does. If a channel is off it cannot provide any current to the load and it will
effectively disconnect the entire battery stack from the load. To prevent damage to the channel each output from
the 41-752 includes a diode that conducts if a negative voltage is applied to its output. In the event that a channel is
turned off in a chain of series connected channels a negative voltage will appear across channel output due to this
diode. This effect is not destructive. The diode can carry currents of up to 3A without damage, significantly greater
than the current that can be generated in the battery simulator.
In typical applications to avoid confusing behaviour of a battery stack we recommend that rather than turning a
channel off, the user sets the channel to a convenient low value of output voltage, typically between 0V and 1V.
Figure 2.9 - Battery Simulator Output Protection Diode
Diode
BATT SIM
CHANNEL
Vout+
Vout-
Diode
BATT SIM
CHANNEL
Diode
BATT SIM
CHANNEL
Vout+
Vout-
Vout+
Vout-
