Barrier voltage and temperature of a PN junction
Why does the barrier voltage of a PN junction decrease by increasing temperature ? Please if possible , i want to understand the inner physics of what happens
View ArticleLED and PN junction diode maximum frequency
I know that PN junction diodes are not used in RF mixers as they burn out due to high heat emission, for this Schottky diodes are used.I am working on a project where I will be producing an IF of about...
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How to source for flyback diode that is not marked?
The diode on my avr popped. I believe it is a flyback diode, but it has no marking. I could not find the schematic or datasheet for my Denon avr x3300w board. I am trying to source for the part but no...
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How can I determine the type of a flyback diode that is not marked?
The diode on my AVR popped. I believe it is a flyback diode, but it has no marking. I could not find the schematic or datasheet for my Denon AVR-X3300W board. I am trying to find a source for the part...
View ArticleHow to choose a relay? [closed]
I'm having trouble sourcing a 12V 20/30A SPDT relay (or similar) with flyback resistance that has BOTH a diode and resistor. I need to protect my ECM on a vehicle as the ECM is directly providing the...
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Is this a good design for connecting 2 power sources to the PCB?
I’m designing a PCB that is powered by a 3-cell LiPo battery. The battery’s +12V output is stepped down to +5V using an LM2596S-5 switching regulator, and then further stepped down to +3.3V with an...
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Calculate voltage and current in diode circuit [closed]
How do I calculate the voltage V and the current I? It's a practical diode so I assumed the voltage drop would be 0.7 V, but that's not correct.
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Solve the ideal diode circuit
assume forward biasedreplace the diode with iD going down and short circuit it and make VD=0combine 70Ω and 30Ω resistors that are parallel and it becomes 21Ωnow 21Ω resistance is in parallel with 3V...
View ArticleNeed help to find out this datasheet or similer model parts that can replace...
Need help to find out this datasheet or similar model parts that can i replace with this...???DIODE, Ultrafast, LTTH15L06DF, 600V, 15A, TO-220FPAC, LITEONWant LITEON Part datasheet for find similar part.
View ArticleFind datasheet or similar model parts that can i replace with this:...
Need help to find out this datasheet or similar model parts that can i replace with this?DIODE, Ultrafast, LTTH15L06DF, 600V, 15A, TO-220FPAC, LITEON Want LITEON Part datasheet for find similar...
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Why are there diodes going to D+ on this alternator/generator?
Above is a schematic of an alternator/generator. I understand the rectification going to B+, but I don't understand why there are 3 diodes going to D+.The way I understand the setup, D+ measures the...
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How to Safely Control two Linear Actuators Using Both a Microcontroller and...
I recently bought a kit that includes a couple of linear actuators, a power supply, a control box, and a remote. Currently, the actuators can only be operated using the included remote.I’m considering...
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Inference of analog neural network in LTspice
I am attempting to replicate the XOR model described in the paper "Training End-to-End Analog Neural Networks with Equilibrium Propagation" using LTspice. Specifically, I am using the parameters and...
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Buzzer is not working
I am extremely new to electronics and stuff, I was trying to design a water level indicator.In Proteus, all the LED indications are working perfectly, but for some reason my buzzer won't work.
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What is a diode's purpose in LR7843 MOSFET Control module?
I would like to know what's the purpose of a diode connected to optoisolator and gate resistor of this chinese MOSFET module.Is it for the reverse polarity protection?Also, what kind of diode could it...
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MOSFET driving external inductive load with high-side PTC protection and free...
I intend to drive an inductive load across JP8 with a standard N-type MOSFET. We like to protect the high-side output with a PTC to guard against short-circuits, although our 12V supply is...
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What is this diode's purpose in an LR7843 MOSFET control module?
I would like to know the purpose of a diode connected to the optoisolator and gate resistor of this Chinese MOSFET module.Is it for reverse polarity protection?What kind of diode could it be?I've...
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Is this a bad schematic
I am looking at a circuit diagram for an L298N module:from http://wiki.sunfounder.cc/index.php?title=Motor_Driver_Module-L298N#Drecription. I found out that the actual negative part of the diode is...
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JBL Link20 Mainboard - A25P 78 component
I have a question, really need your help here please. Trying to identify what component is this from the mainboard TXC-M E250336 which belongs to a JBL Link20. It has A25P 78 marked on it. I have tried...
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I'm practicing building a circuit by looking at the circuit. Is this correct?
I'm practicing building a circuit by looking at the circuit. Is this correct?
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