Narrow down by specifying conditions
現在1888件がヒットしています。check
In the previous article "Let's use LTspice - Checking the operation of the DC/DC converter", we automatically calculated the efficiency using the JIG file of the DC/DC converter called LT8640. This time, we put together a short video on how to manually calculate efficiency.
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Let's check the efficiency with the manual!
Analog Devices' LTspice model can be used to simulate power supply efficiency. This is a very convenient function, so it is often used when selecting a power supply.
In the efficiency calculation on LTspice, set to automatically detect the point of stable operation and calculate the efficiency automatically. However, in rare cases, there are models and conditions in which a steady state cannot be detected and efficiency calculations cannot be performed.
This time, the JIG file of the DC/DC converter LT8640S fell under that rare condition. As a countermeasure for such cases, there is a method of manually calculating the efficiency. I put together a short video on how to manually calculate efficiency.
* As of February 28, 2020, automatic calculation is not possible, but the model may be changed in the future to enable automatic calculation.
*Short videos are explained with subtitles, so you can check the contents even in environments where sound cannot be produced.
At the end
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