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treez
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Switch in series with LED load giving problems
Hello,
Ive just doen a 5W sepic led driver (vin = 5V, vout = 40V).
Its current regulated, but has an output overvoltage trip comparator.
When i test the ovevoltage comparator, i switch the load open with a series switch. i use the following switch.
**broken link removed**
..but when i switch on, and at randon other times, i am getting overvoltage faults even when the switch is closed, -is this switch not fit for purpose?, does it take time for its contacts to weld together, and in that time the overvoltage trip happens?
(as you know, overvoltage in current regulated led drivers happens when the load goes open circuit.)
Hello,
Ive just doen a 5W sepic led driver (vin = 5V, vout = 40V).
Its current regulated, but has an output overvoltage trip comparator.
When i test the ovevoltage comparator, i switch the load open with a series switch. i use the following switch.
**broken link removed**
..but when i switch on, and at randon other times, i am getting overvoltage faults even when the switch is closed, -is this switch not fit for purpose?, does it take time for its contacts to weld together, and in that time the overvoltage trip happens?
(as you know, overvoltage in current regulated led drivers happens when the load goes open circuit.)