Electrical Engineering Questions, Problems & Solutions : TransWikia.com ~ Page 31

How to find the impedance of this RLC circuit?

I'm trying to find the impedance of this RLC circuit (sorry for awkward notation of Q instead of I and P instead of V due to that this scheme comes...

Asked on 11/08/2021 by Mithridates the Great

2 answer

TIA portal - failed to establish a connection

I'm using TIA portal siemens v15.1 for my project when i tried to upload the code to the plc this error pops up. Appreciate anyone can help me in this...

Asked on 11/08/2021 by Aisha

2 answer

Type 1 surge protection: parallel or series?

Type 1 surge protection devices (SPDs) are installed at the outside edge of electric service, usually between the power meter and the meter base/socket, and protect the entire house. ...

Asked on 11/08/2021 by mbedded

0 answer

Confirm AC generator output frequency calculation

I am working on a project to build a small generator based on a 12 magnet, 12 pole, (6 pole pair) rotor with shaft speed of 2800 RPM. (Output voltage,...

Asked on 11/06/2021

1 answer

Spark when connecting battery module to DC power supply

I am using a 60v DC power supply to charge a 48v battery module. I set current and voltage limits first, turn off the DC power supply, connect positive to...

Asked on 11/06/2021 by yxing

2 answer

Li-ion CR2 / 15270 voltage and charging circuitry

CR2 / 15270 Li-ion batteries normally come as 3.0v. I thought Li-ion and Lipo batteries were always 3.7v, how is that possible? Does it require a different charger circuit than...

Asked on 11/06/2021 by J Halcres

2 answer

How to calculate the 3dB point?

I understand this until the final two lines. How does he get from 27.8766 to 1149.8hz and 7224.7rad/s?...

Asked on 11/06/2021

1 answer

Re-soldering SMD with SMD rework station

I recently purchased a clone 858D SMD rework station and would like to get familiar with de-soldering and re-soldering SMD chips. I was able to de-solder fine, but when trying...

Asked on 11/06/2021 by Naxin

1 answer

Why does a spark occur when an SMPS is connected to the load circuit?

I am using a 36VDc SMPS as a power supply. A spark is generated when I connect 36V with my load circuit. Specification:Voltage source: 36VDcCurrent consumption: more than 3AI want...

Asked on 11/06/2021

6 answer

What features should/must be present inside a prototype FPGA board to aid in debug?

When making any prototype PCB it is always a great idea to have features within it that can be used to aid in debug of the design. A few examples...

Asked on 11/06/2021 by Quantum0xE7

4 answer

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