Voltage regulator
Jump to navigation
Jump to search
Why
- power into xo without frying
Requirements
Input
Under construction. Need to find...
- maximum voltage spikes from a variety of power inputs - how much would the max spike be
- ditto above for maximum steady voltage from the same variety of power inputs
- ditto above for amperage
Output
- (single) XO power input - ideal is 18V at 0.944A. (Laptop can accept 17W maximum, 11-25V and 2Amax but lower current = lower resistance losses.)
- "overflow" wattage should get switched out to another place - by default some sort of dissipator (whonkin' power resistors with a big heatsink?) that's easily bypassed in favor of something useful like a battery.
Parts
Current recommended
The current recommended voltage regulator is a L200.
- Digikey: 497-1382-5-ND ($1.92 USD each when purchased individually)
- datasheet (pdf)
- application notes (pdf)
Benefits
- can handle up to 60V, which is around the surge you'd expect when you start up a human-powered source (for instance, the spike from a bike-power generator when you start to pedal)
Open questions
- what is its behavior at spikes over 60V? constant input?