10 ms·
True but you'd expect that to be 120Hz rather than 60Hz.
by smoyer 12y ago
True but you'd expect that to be 120Hz rather than 60Hz.
- jonathonf 12y agoSo you could: a) use a half-rectified supply b) halve the count. A) would be easier. :)
- smoyer 12y agoTrue ... not so good for efficiency and you'd need a bigger smoothing capacitor. (I'm assuming since this is all discrete, there's no need for a fully regulated power supply).
- morcheeba 12y agoYou'd want a fully regulated power supply for this, /especially/ because it's discrete. You want the LEDs to remain constant brightness, but, more importantly, you don't want an unregulated power supply to overvolt and destroy all this hard work.
- dogma1138 12y agoUse a diode so you only get half of the sin waves, that's 60hz which makes it very easy to build a clock off since you don't need to do any multiplications on the base clock frequency it self.