Selection of capacitors for power supply(IV)

Control and logic circuit

All kinds of capacitors are used in power supply control circuits, except in the harsh environment, these capacitors are universal components with low voltage and low loss. High temperature components are usually used for power supply in harsh conditions. Industrial or professional power supply, can choose low ESR components, such as EPCOS B45294 series, in the requirements of higher overall reliability, is a good choice.

In order to make use of the automation of assembly, the compression of shape size, the decrease of assembly cost and the increase of productivity, most designers try to use the SMD capacitor technology used in the control circuit. However, there is no shortage of engineers who choose hybrid technology to take advantage of the much lower cost advantages of some lead elements.