Tagged Questions

3
votes
2answers
458 views

current sensor for small currents?

I'm using an ACS712 +-5A to DC measure current, but my current never goes about 1A. This causes lost resolution in the sensor, since it never measure above 1A. What are some options for me to ...
3
votes
2answers
246 views

How do I sense sinusoidal voltage/current on a resistor?

I have an experimental circuit like below: My aim is to measure maximum or effective value the current on the load. The current sensor is a simple \$ 0.1 \Omega \$, \$5W\$ resistor. I filtered ...
0
votes
1answer
214 views

Current Transducer with true RMS voltage output [duplicate]

Possible Duplicate: ICs that convert an AC signal into its true rms value Can anybody please recommend me a current transducer which has the provision of true RMS voltage output and ...
2
votes
5answers
306 views

Are the resistance values (R1 and R2) in this circuit reasonable?

This simplified circuit is intended to sense two limit switches (which can never be closed simultaneously-- at least in theory). The voltmeter shown is a place-holder for a connection to an analog ...
3
votes
2answers
173 views

Sensor supply current?

I'm reading a datasheet for an accelerometer (specifically this) and it lists the max supply current as 290 uA. Does this mean that the power supply I use should never output more than 290 uA? Or does ...