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Q&A

Posts tagged diode

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Q&A Identification of semiconducting electrical components

We identify semiconducting electrical components this way: The first digit represents the number of pn junctions inside the semiconducting device The two or more digit number starting at position...

1 answer  ·  posted 9mo ago by MissMulan‭  ·  last activity 5mo ago by Jasen‭

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Q&A How do "O-ring circuit" differ from an "ORing circuit" or "OR-ing circuit", or are they synonyms? [closed]

I've seen a few different circuits (a) (b) (c) (d) described as "an O-ring circuit" or "an optimal O-ring circuit". What does the "O" and the "ring" refer to in such circuits? How do "O-ring circ...

0 answers  ·  posted 9mo ago by DavidCary‭  ·  closed 9mo ago by Olin Lathrop‭

Question diode Circuit power
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Q&A Diodes used in mixers

Suppose we have this circuit which is supposed to be an unbalanced frequency mixer. But how does the diode generate a signal with new frequencies at the output?

2 answers  ·  posted 1y ago by MissMulan‭  ·  edited 1y ago by Peter Mortensen‭

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Q&A Diode like a frequency mixer

Based on this paper on Wiki a diode can be described as a frequency mixer due to the exponential relationship between current and voltage.What I don't get from which point to which point do we meas...

1 answer  ·  posted 1y ago by MissMulan‭  ·  edited 1y ago by MissMulan‭

Question diode Mixer iv
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Q&A Adding resistance to varactor circuit

If we a varactor and we want to control let's say the resonant frequency of the circuit ,in my schematic we must add R1 correct?Else we create a low resistance path for current to flow not through ...

2 answers  ·  posted 1y ago by MissMulan‭  ·  last activity 1y ago by Andy aka‭

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Q&A Tunnel current equation

The current through the tunnel diode is: where $I_{f}$ is the current from the Shockley diode equation and $I_{tunnel}$ is the tunnel current. Is there an expression for the tunnel current or i...

0 answers  ·  posted 1y ago by MissMulan‭

Question diode tunnel current
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Q&A What should be considered when picking a flyback diode?

Which are the parameters I should looking for when picking a flyback diode to be placed across a generic coil, such as a relay? That is: a coil with plain on/off functionality, for example a 24VDC ...

2 answers  ·  posted 2y ago by Lundin‭  ·  last activity 2y ago by Olin Lathrop‭

Question diode
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Q&A How to plot the I-V curve of a tunnel diode?

I am trying to understand tunnel diodes by experimenting with them. Research tells me they can have negative resistance, and can be used to build a high frequency oscillator. Tunnel diodes are su...

4 answers  ·  posted 2y ago by tlfong01‭  ·  last activity 2y ago by Circuit fantasist‭

Question diode tunnel
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Q&A Is it possible to use two zener diodes in series back to back to replace a diac?

I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work...

2 answers  ·  posted 2y ago by coquelicot‭  ·  last activity 2y ago by Dave Tweed‭