Load Edge Series
16 Product Outline
1.5 Extreme Power TechniquePatent pending
Principal of “Extreme Power”
In conventional electronic loads, it is impossible the instant power calculated as the
product of applied voltage and load current exceed the rated power even in a short period.
This limitation results in that it is necessary to secure an additional electronic load unit
that can work in higher power capacity. KEISOKU GIKEN‟s “Extreme Power” technique
will remove the strict limit and provide wider operating range by making the best of
improved the latest device protection technology.
In most cases, it may be only about 2 to 20 seconds that needs for maximum load current in
general tests including the load regulation test and over current test of a switching power
supply.
Even in those cases, when an average power is calculated by integrated for all the period of
the whole tests, the average power is substantially lower than rated power because in the
whole tests, there are several load conditions including max load, light load and even no
load conditions. KEISOKU GIKEN paid attention to this actual procedure of testing and
developed the “Extreme Power” technique which allows a consecutive operation with much
larger load current than rated as long as the averaged power does not predetermined limit.
In addition, even when high power operation exceeding the allowance time, the electronic
load unit has robust protection circuits to protect the unit. The operations of the
protection circuits can be monitored to check if the load operation exceeds the limit or not.
Relationship between Maximum load and Load ON time
The averaged power should be calculated according to the following formula.
Pav: Rated power
Pm: Averaged power
Pw: Peak power
a[W]: Base power
T: whole period
t: Period of Peak power
The limits of applied peak power are as follows:
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