Re: current sensing
App notes on current sensing.
Here's a another interesting one about magnetoresistive sensors:**broken link removed**. E.g. ZMC05 and ZMC20 current sensors.
Allegro Hall-effect sensors, which were already mentioned above: **broken link removed**
What kind of current do you have:
- AC or DC? If AC, what's the frequency?
- Do you need to know instantaneous current? rms?
- Do you want to measure current, or just detect when it's above some threshold?
- What's your expected range of amps?
- What's the voltage at the point where you want to detect current?