[FesZ] shows how many meters measure voltage across a known resistor and the unknown so that a precision voltage or current source isn’t necessary. But there are a number of problems with this ...

Using a sense resistor is only the first step in the current-sensing decision. The other part is topology: whether to use ...

Explore snubber circuits and their vital role in protecting semiconductor switches from voltage spikes and ringing.

Using properties of a series circuit, the sum of the voltages across the LED and resistor R must equal the supply voltage. \({V_s} = {V_{LED}} + {V_R}\) Now substitute the supply voltage (\(6V ...

times \frac{{{R_1}}}{{{R_1} + {R_2}}}\) Of the three relationships stated above, any one can be used to find the voltage across a given resistor. If one of the resistances in a voltage divider ...

Why a precision preamplifier is critical to low-side current-sensing performance.

By adding a 15 V Zener diode and a resistor across the MOSFET which dims the LEDs, a voltage of around 9 V can be put across the LEDs without lighting them up when the MOSFET PWM dimmer is in its ...