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Litium Battery Series-Parallel 2S2P Protection
I am designing a PCB which has 4x Primary Lithium cell Batteries (ER14505M) two in series and two in parallel to give 7.2 V 4400 mAh. The cells have their own holder so it would be possible to only one...
View ArticleSupplying a negative voltage to a Zener diode
How does one apply a negative voltage to a Zener diode or a diode in general. I am guessing it's by connecting the negative (-) of the battery to the anode and the positive (+) of the battery to the...
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Diode conduction LTspice
The schematic in Picture 1 is taken out from the part of the circuit that was trying to simulate. Then I realised that Vcathode = Vanode for D2 diode. I realised this, so I took out the part given in...
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Choosing the right (flyback) diode to stop contacts (points) arcing...
Clock with a simple electric remontoire, consisting of a solenoid, with an arm, that kicks back the main spring, rewinding it.Solenoid coil data:operating voltage: 12V-15Vmeasured resistance:...
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Find the datasheet for the component (BA04)
I want to understand the datasheet of a component labeled as DA2 (similar to a diode) with three pins: A, K, and AK. The marking on the body is BA04.
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Adding diodes in parallel with a load
apparently output only sees voltages between 0.7 and -0.7I don't quite understand, I tried simulating it but:Where am I wrong
View ArticleGunn diodes for online sale [closed]
I know for a fact that this site doesn't allow product recommendations but I'm thinking of building a Gunn diode oscillator at home so where can I find bare Gunn diodes?I have searched thru ebay but I...
View ArticleLaser Diode Driver for a PPM Modulated Signal
I am working on data transfer with laser. I want to convert a data or an image to digital data with STM32F407xx and send it via laser. In short, I am trying to transfer data with laser. At this point,...
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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...
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Ideal full-wave bridge rectifier with commutating inductance
In Principles of Power Electronics by Kassakian, John G., David J. Perreault, George C. Verghese, and Martin F. Schlecht, I came across this problem in the problems section that gave me an interesting...
View ArticleNoise in crystal detectors (historical)
I'm reading over the history of British WWII radar systems, and one thing that really struck me was the improvement in crystal detectors. The were a vital component of microwave radars, and while the...
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Is it possible to use the load line analysis technique on two diodes?
I understand the load line analysis is a way of solving two equations. In the two diodes case, I also have two equations.In number 5 for example, I will try to get \$V_{D1}\$ using the load line...
View ArticleWhat is the physics behind the sillicium diode and the Zener diode?
Zener diode, in reverse has the same behaviour as diode.In reverse, the diode, when reaching Vmax, the diode goes into avalanche effect mode and get destroyed, whereas as for the Zener it is fine. Why...
View ArticleWhat is the physics behind the silicon diode and the Zener diode?
Zener diode, in reverse has the same behaviour as diode.In reverse, the diode, when reaching Vmax, the diode goes into avalanche effect mode and get destroyed, whereas as for the Zener it is fine. Why...
View ArticleDoesn't the forward biasing voltage have to be greater than the barrier...
I'm only talking about current conducted by the majority carriers.First things first, barrier potential/height is different than the built-in voltage of a diode. The built-in voltage is a constant. The...
View ArticleHow to know whether SRV05-4 is working or not
There are couple of SRV05-4 array of TVS diodes on our PCB. I want to know how can I tell whether one of them is working or not i.e. whether it's still alive or dead.I was interfacing my board with...
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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...
View ArticleDiode 'D2' specification and suitable replacement
I am referring to 'D2 - 3pin dual-diode (R5/IRQ7 to GND and R3/DAT to GND)' in the section 'Pinouts - Component List and Chipset Pin-Outs for Analog Joypad, SCPH-110' listed in PlayStation...
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Forward voltage of the 1N4001 diode is not 0.7 V
simulate this circuit– Schematic created using CircuitLabWhy is the forward voltage of this diode not 0.7 V?I am a bit confused with some data from a lab experiment. The circuit is as above. The diode...
View ArticleI want diodes equivalents [closed]
These diodes are hard to find under it's numbers.I want equivalent diodes for:11EQS04 (AK04V2)MA7510 (Zenerdiode)
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