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Electrical Engineering : Recent Questions and Answers (Page 4)

Find answers to your questions about Electrical Engineering or help others by answering their Electrical Engineering questions.

Relationship between switching frequency and controller's crossover frequency in buck SMPS

Context: tuning the control loop of a buck SMPS. I specicifally have a TI TPS40200-based circuit in mind, but I think this applies to SMPS design in general. Quoting from...

Asked on 12/31/2021

1 answer

Help needed to identify pins of power supply

I could find no schematic nor data sheet online for what appear to be DC power supplies. There are two terminals on the smaller ones ...

Asked on 12/31/2021 by Jean-Paul McCoy

1 answer

Average Power of load conected to an Ideal Transformer

Where does the 1/2 come from in the power equation?...

Asked on 12/31/2021 by helpmeplease

1 answer

Need to synchronize stepper motors

am using two A4988 drivers to control two NEMA 17 stepper motors with 1.8 degree full step resolution on Rpi 2b. I am using them as wheels. The motors are...

Asked on 12/31/2021 by AK46

3 answer

Wirless Power Tansfer Circuit

Hello so my university is closed because of covid. I am allowed one day into their labs to build and test my WPT device. ...

Asked on 12/31/2021 by Krits

1 answer

Hartley Oscillator Simulation

Hello i want to simulate the following Hartley Oscillator that i designed on LTspice But when i run it i...

Asked on 12/31/2021

2 answer

Need help wiring a power supply to UK rocker switch

I'm looking to wire up the UK rocker switch/plug to a power supply. There's a black cable coming from the live & a red one coming from Neutral. I don't...

Asked on 12/31/2021

0 answer

What's the advantage of using cotton braid wires over normal wires?

I recently notice sudden trending use of cotton braid wires overnormal wires in eletronic units. Is there any special advantage to it? ...

Asked on 12/31/2021 by Foxy M

1 answer

can I hard wire the output power of a eu solar inverter to a us breaker panel/

I have a hybrid solar Easun inverter/charger rated power 3000va/2400w 230vac 50/60hz self sensing. The unit is set up with single EU 230v self sensing 50/60hz input to charge battery...

Asked on 12/31/2021 by novice 1

1 answer

Frequency response of BJT frequencies with CE bypassed

In a lot of reference I see divergence like Zce = RE || (beta re + Rb || Rs) / (beta + 1) etc.$$Z_{ce} = R_E || left(frac{beta.r_e...

Asked on 12/31/2021

1 answer

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