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Forum for Electronics

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Message History

Trouble regarding identification of the pin numbers of an IC
This is a Dual N-Channel Enhancement Mode Power MOSFET IC. Ic number is FS8205. The problem is How can I identify the pin numbers of this IC? Which pin is number 1 and which one is number 2? There is no marking on the corner of the IC. How can I determine the pin numbers of this type of IC?

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Odd sinusoidal oscillator
Code: Hi, The attached is a sinusoidal oscillator. Why have they done it like this? Its from a 35 year old schematic. The oscillator is to provide the sinusoidal input to the primary of a LVDT. Look at the biasing of the opamp's non-inverting input. Its done via the collector-emitter path of a wrong_way_round PNP!! And then (presumably) to reduce noise at the non-in...

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Lm4951 Spice model
Hi All,

Is there a spice model for the below component?

Lm4951
LM4951 data sheet, product information and support | TI.com ...

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noise elemination significance in a car
Hello, Sorry for the ignorant question.
Why do we care aboutthe spectral content inside a car?
Car is basickally meachnical system on it majority and the motor which controls the windshield is a very crude device?
so Why in electric cars spactral noise is a problem?
Thanks.

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Inverter waveform ringing powering TRIAC based
Hi all,

I am building a full bridge transformerless solar inverter working at 17 KHz. The switching mosfets are driven by TLP350s and the PWM is being generated by an arduino UNO.
The inverter is working fine with regular loads like motors, Aircons heaters etc. However when I connect a TRIAC (BTB16) controlled cooker (2KW) there is ringing on the wave as can be seen...

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