Radio Amateur Quiz Canadian License

EN FR

Question A-004-002-008

When using a choke input filter, a minimum current should be drawn all the time when the device is switched on. This can be accomplished by:

Correct Answer

including a suitable bleeder resistance

Explanation

Choke-input filters require a minimum load current (critical current) for the choke to be effective in smoothing and regulation. A bleeder resistor provides this minimum load if the external load is too light or disconnected.

Warning: Generated by AI