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Analysis of Capacitor Voltage in a Circuit with Ideal Diode and Switch
In the circuit given here, \$D_1\$ is an ideal diode and key \$K_1\$ is ON for a long period of time. Now at time \$t_0\$, key K₁ is opened. Draw the voltage waveform oncapacitor C and find the final...
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How the current commutation from the diode onto the transistor take place in...
I have below given power electronic circuit where the blue line emphasize the active current pathLet's say the transistor \$T_4\$ is turned on in this situation. I am not sure what this action causes...
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Unpredicted voltage drop at the output of a Graetz bridge
I used a Graetz bridge to rectify the voltage after transforming but it ended up making an unusual voltage drop. I don't understand what is happening.
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Identifying component marked N 7G3A from a Sennheiser EW 300 G3 PCB
Please help me to identify the components from the pictures, the marking seems to be: N 7G3A !This is part of Sennheiser EW 300 G3 board.
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Identifying strange SMD diode "7"
I've been searching for a while to find this part of my broken inverter AC PSU Fujitsu / general mini split. Marking looks like "7" and something like inverted comma. I had found 15+ SMD diodes with...
View ArticleTemperature stability of Zener Diode
The breakdown voltage of a Zener diode is 12.3V at 40°C.The Zenerdiode has a temperature coefficient of +8.5mV/°C. Compute the value ofTemperature stability.I searched for this on the web and came...
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Replacing selenium rectifier diode with silicon 1N4007
I want to replace this selenium diode on an old tube amplifier with a silicon equivalent. Normally, this diode would have a lower value resistor in series with it such as a 15 ohm. Instead, this one...
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Can someone help me solve this diode circuits? [closed]
Can you help me with PArt A of this problem, i already added my attempt.
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Why is this diode required?
In the schematic from https://github.com/esp-rs/esp-rust-board, what is the function of diode D1? Is it really necessary and worth including? I’ve noticed that many schematics for ESP32-based projects...
View ArticleHow can I connect multiple 8V AC inputs into one earthed probe?
I am trying to design circuitry to connect 4 separate float-less water level controllers into one probe. Each unit needs to confirm that there is water in the tank and if not, will shut down. Not all...
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Flyback diode change caused instability on step-down converter?
I recently started working on an inherited design that uses an MP9928 step-down converter to drive a 12V fan (~5A) off of a 20V battery. Initially, the back-EMF of the motor was killing DUT's, so I...
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Multidiodes circuits solve - help me [duplicate]
Can someone help me with PArt A of this practice problem, I already attached my attempt.
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Differences between TVS diode and Zener diodes, in diagrams and in practice?
I have been looking at circuit protection using TVS and Zener diodes.I have seen the following symbols used to represent TVS diodes in circuit diagrams:simulate this circuit– Schematic created using...
View ArticleSolar panel strings: when does current flow via bypass diodes where each...
When having strings of 5 till 6 a-Si/µ-Si thin film PV panels and each panel its junction box is containing a BY255 by-pass diode, to make sure that current will flow in less optimal situations, like...
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What type are these diodes, whats an equivalent
On printed board for a VSD lathe marked SCR1 & D13 is diode X6025 and C6025L respectively.What do the letter and numbers represent?What's an equivalent that could be used?Whats the function of...
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How can I make a better approximation of a rectangular pulse using a diode...
I have been studying the voltage clipper:simulate this circuit– Schematic created using CircuitLabThe Vout graph will look like this:I would like the slope of Vout when the V1 switches its polarity to...
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How to find the current and voltage of this circuit?
I have this circuit with a Z-Diode in reverse.Find U2 and I2?I solved the fist circuit.U1 = 0.7V, I1 = (15V-0.7V)/1kΩ)= 14.3mAThe results for are U2-8.2V I2=6.8mA but I just can't figure out how to...
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name of an electronic component
Can anybody kindly tell me what this electronic component in the picture is called?
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Help me to find V01 in this diode circuit?
I need to find V01 in this circuit, the cut-in voltage for all diodes is 0.6V, V1=V2=5V, attached my attempt, pls guide me with short and clear steps.
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Diodes with the parallel batteries
I am stuck on these schematics and would like to understand how is that working. As I can see from the schematics both of them forward bias (because -10>-15 and -15>-30) that is why they are...
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