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Electrical Engineering

Questions tagged [avalanche]

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18 questions
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2 votes
2 answers
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I found an interesting circuit (image attached), which was created by LUKASZ SLIWCZYNSKI and published on edn.com in 1999: He conditions a 12-volt power source to provide 5-volts to the Zener diode, ...
A Bit of Help's user avatar
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0 answers
55 views

I am a software engineer who works very close to the hardware level of devices. I've built three versions of RF white noise generators (BFR93AW, 2N5770, and 2N3904) to help tune some antennas and ...
A Bit of Help's user avatar
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4 votes
2 answers
1k views

I am experimenting with an RF white noise generator using three different NPN transistors: BFR93AW, 2N3904, and 2N5770. I want to compare and contrast the results for each of them against the others. ...
A Bit of Help's user avatar
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1 vote
0 answers
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I experimented with a simple RF white noise generator using avalanche breakdown on an NPN BFR93A transistor. I've used a voltmeter and an ammeter to determine the breakdown voltage and associated ...
A Bit of Help's user avatar
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4 votes
3 answers
606 views

I understand that MOSFETs act like resistors when they are on, and that is why they share current nicely. (As opposed to diodes and BJT's, which act like voltage sources when they are on, and that is ...
James Strieter's user avatar
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1 vote
2 answers
1k views

I am trying to design an avalanche photodiode driver using the MAX1932 APD bias supply IC. Everything looks pretty understandable except selecting the APD current limit. I looked through all APD ...
user3500960's user avatar
  • 61
5 votes
1 answer
502 views

I am experimenting with a DFB Laser salvaged from a scrapped GPON Router. Laser works fine, but it comes with what looks like a "Built in InGaAsP monitor photodiode" incorporated into the ...
Ezequiel Adrian's user avatar
  • 153
1 vote
1 answer
152 views

In our research on minimizing the blockages in visible light communication using IRSs, we use a MTAPD-06-013/014/015/016-905F 905nm avalanche photodiode which has 3pins. What is the purpose of the &...
Asha Rajapaksha's user avatar
  • 11
5 votes
3 answers
277 views

I would like to create an active load which draws current(4 to 6A) from a 12V battery. Unfortunately, the shipping costs and delivery times have prevented me from buying Linear FETs directly from well ...
A.H.Z's user avatar
  • 653
3 votes
1 answer
256 views

Is there any way to determine whether an unidentified photodiode is a regular PIN photodiode or is an avalanche diode? The photodiode is part of a small scintillation detector unit.
Eric Slighton's user avatar
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3 votes
1 answer
1k views

I’m try to make a wideband noise source up to 150MHz, around 0dBm and as flat as possible, based on diode’s avalanche mechanism, plus some buffering and amplification stages. My questions: What is ...
GR Tech's user avatar
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4 votes
1 answer
809 views

I've tried the circuit in this article. It works very well and I've obtained 2ns clear pulses at 150 V (the main issue was to find the right avalanche voltage, which turned out to be 150-160V for my ...
MikeTeX's user avatar
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1 vote
2 answers
454 views

I am using Avalanche Photodiodes and I was told that they use a much higher voltage then standard photodiodes and I was wondering if I need a High Voltage PCB to drive them? I am currently just using ...
James's user avatar
  • 113
0 votes
2 answers
631 views

Does LTSPICE power calculation window like this take into consideration MOSFET avalanche parameters and include them into the overall average power value? That particular image is for a resistor not ...
user33915's user avatar
  • 83
0 votes
2 answers
1k views

I understand that there was one other question regarding avalanche photodiodes, however I am looking more for connecting my APD to a microcontroller (Arduino). https://www.edmundoptics.com/testing-...
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