Questions tagged [breakdown]
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49 questions
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Is it important to account for transient voltage when designing an electric circuit?
I've been learning basic electronics lately (I have some high level understanding, and basic electromagnetism knowledge, but never got too deep into the details before).
I got curious about the ...
- 183
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1
answer
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Need for cleaning solder residue for 7mm spacing due to breakdown voltage
I've designed a board that I ordered from JLCPCB. I have traces with 7 mm lowest spacing between them and with voltage of at most 400V AC, 525V peak between them.
The traces couldn't be wider due to ...
- 93
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APD active quenching circuit - please help to understand function
I'm trying to understand the circuit demonstrated in this publication - this is an active quenching circuit for an APD detector. Here is an image of the circuit in question:
Some information of ...
- 353
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4
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How do I light an LED on a ground signal when I don't have enough voltage left after the PNP?
I am working with a circuit that grounds when a LED is to turn on. I have an 8V supply voltage for the LED, which cannot exceed 10mA. The signal to turn on the light is a very weak 6.5V, so Vbe is ...
- 2,268
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Equation to fit the reverse breakdown I-V curve
I have some I-V curves of solar cells that i want to fit them, for this purpose, I used a software called 2/3 Diode fit. This software performs fitting only for forward bias and only for positive ...
0
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1
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Transistor withstand voltage tester
There are some cheap transistor withstand voltage testers around. Aliexpress and eBay are full of them for under $20.
I guess the principle is that the tester increases the voltage (with current ...
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2
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Are multiple SMD Chip Resistors in Series as Safe as a Wirewound Resistor for Mains Voltage?
I realize SMD Chip Resistors are not recommended for Mains Voltage and it's no wonder since their maximum voltage rating is lower than 100 V. I also understand that WireWound Resistors are recommended ...
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Reverse Breakdown Voltage for a diode
Could anyone explain why is the reverse breakdown voltage measured for a general diode? Diodes work in the forward biased region. Then why is it important to know the reverse breakdown voltage?
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3
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MOSFETs stabilizing current in coils keeps burning, how to protect them?
I am trying to stabilize the current in coils in my experiment. For that I am using a circuit as in the picture:
First section is a fast switch. It is also galvanically isolated from the TTL signal ...
- 63
0
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1
answer
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Reverse breakdown voltage over series elements
The M2* FETs are 100 V graded while D_pass is 150 V.
Will the FETs' body diodes help them survive a negative 150 V spike?
- 1,158
5
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Why does output of this reverse bias noise source not have normal distribution?
I am trying to build a noise source based on reverse biased PN junction (i am trying to replicate this project https://altusmetrum.org/ChaosKey/ ). At this point i tried multiple iterations but so far ...
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Breakdown voltage of a back-to-back MOSFET configuration (aka "Bidirectional Power Switch")
In a back-to-back MOSFET configuration, if the single MOSFET is maximum-rated at BVDSS=100 V (like the IRF530 in the example), does that mean that the series of both has a breakdown voltage of 200 V ...
- 813
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173
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HEMT device not entering breakdown region on Silvaco TCAD during IdVd analysis.What must I do to cause my device to breakdown?
I've been trying to create a HEMT device over the past couple of weeks in Silvaco TCAD. My device works just fine in low voltage operation- that is, IdVg and IdVd curves are as expected. I'm getting a ...
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2
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1
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Common Source GaN HEMT breakdown
I had recently designed an array of GaN HEMTs to be used as a solid state relay. At low voltages (Vin = 24V) everything was working fine. However, when I bumped up Vin to 70V, after a couple cycles ...
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High-voltage power MOSFET self-protection at low Id currents
Let's say the IXTA02N250HV MOSFET regulates high voltage in a common-gate topology. The resistive load in the source is very light and allows an output current of just tens of μA.
The MOSFET's ...
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