
Originally Posted by
George
Any protection suggestions would be greatly appreciated
How much current do you need ?
I put a 68Ohm 1W resistor in series to a 47uH coil in the input in order to lower the shortcurrent of the following parts. Then I use a 30V SOIV in parallel to a Transil (P6KE33A) towards Gnd.
Using a 78xx is a bit difficult. Maybe it is good to place a 1N4007 across Vin and Vout in order to protect the device. The 78xx is dead, if the input is connected to Gnd (Power-Off or shortened to Gnd) while the capacitator at Vout is still charged.
PBP 2.50C, MCS+ 3.0.0.5, MPLAB 8, MPASM 5.14, ASIX Presto, PoScope, mE mikroBasic V7.2, PICKIT2
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