2:1 ish capacitor voltage pump

Vin   D1A
D1K   LED+
Vin   Q1+
Q1-   Q2+
Q2-  gnd
Vin  D2A
D1K R1A
R1B  D2K
D2K  C1A
C1B Q1- (=3DQ2+)

E&OE - drew from above - looks OK.



Q1 is a N-Channel MOSFET
Q2 is a N-Channel MOSFET
D1, D2 =3D most any diode
R1 =3D cap discharge resistor for flashing.
C1 =3D flashing energy cap

Q1 off Q2 on - Cap charges via D2.
Q1 on, Q2 off - Cap discharges via R1 into Led.

Q1 and Q2 on - magic smoke.




              Russell
--=20
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