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4 votes
Accepted

Inductor saturation vs RMS current

"Saturation current" is defined as the DC current that causes the inductance to drop by some percentage X%. So for every value of X% there is a "saturation current" specification. ...
bobflux's user avatar
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3 votes
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Piezoelectric Disk Charge Generation and Detection

Observation You are using an op-amp as a TIA (transimpedance amplifier) to measure AC currents with the most negative supply pin for the op-amp tied to ground. The reference input (the non-inverting ...
Andy aka's user avatar
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2 votes
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Maximum instantaneous current vs maximum operating current

The maximum operating current is the current at which a device can operate indefinitely. Maximum instantaneous current is the current above which damage will occur if applied only for an instant. This ...
RoyC's user avatar
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2 votes

How to calculate each load current in a 3-wires split-phase system

No it is not possible to calculate Ia,Ib and Ic from IL1,IL2 and IN E.g. If load A and Load B are equal then you have Il1=IL2 and IN=0. If Load C has a high impedance or is even removed then Ic is ...
mond's user avatar
  • 31
2 votes
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Low power consumption/leakage tips and tricks (input NC magnetic reed switches)

The internal pull-ups in an ATTiny/ATMega are usually in the range of 20-50 kΩ, which is quite low for a low-power application. I would disable the internal pull-up resistor, and use an external pull-...
Tom Carpenter's user avatar
1 vote

Measuring current with a multimeter around a closed circuit

If you complete the circuit with a wire at the same two points as the multimeter probes, you short out the meter - the meter will not register any current (or a negligible amount of current depending ...
MOSFET's user avatar
  • 2,095
1 vote
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Forward converter current flow confusion

Once the MOSFET deactivates, the flux in the core demagnetizes via the 3rd winding and diode. The dotted end of the 3rd winding tries to goes negative but, it's clamped at -0.7 volts by the diode and, ...
Andy aka's user avatar
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1 vote
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How to go with this RC circuit?

KCL Assigning \$v_1\$ to the node between \$R_1\$ and \$C_1\$ and assigning \$v_2\$ to the remaining node (with \$R_2\$ and \$C_2\$) the KCL says: $$\begin{align*} \frac1{R_1}v_1+C_1\frac{\text{d}}{\...
periblepsis's user avatar
  • 7,735

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