# diode

1. ### Value to simulate igbt and diode in ltspice from datasheet

I have igbt and diode data sheet used for inverter and rectifier circuit design. i need simulate inverter in ltspice using the voltage controlled switch component. How obtain to these values from the igbt/diode data sheet datasheet is attached here Name Description Units Ron Resistance in...
2. ### Laser diode driver oscillating

Hi, I came across a circuit which can be used to drive a laser diode in continuous mode (CW) or modulated (<=100Khz). A BFR540 (NPN) transistor is used to drive the laser diode and a photodiode (inside the laser diode package) provides an output current based on the optical output power, which...
3. ### I'm building a little circuit and need help with Diodes.

My question is this - Can a diode still work if it has electricity coming in from both ends? For example if I have a diode, and connect a DC generators output to one end of the diode, and do the same for the other end as well what will happen?
4. ### How to make a simple oscillator with transistor and Capacitor?

I provided a circuit which should discharge at a specific time. But this circuit is not working as an oscillator. How should I make circuit which will give me oscillation?
5. ### Power losses for half/full-diode-bridge ??

Hello, I have some concern regarding an equation for calculating power losses for half - and full diode-bridge. Can someone please check if this equation is correct or not? See the attached image. " Fig. 1. Typical diode full-wave bridge. Full-wave diode bridges are found in many...

hi everybody i have problem with knowing this diode (in attached, D5). what kind of diodes? schottky? printed code in its body is j 8j i cant understand this.it used in power supply 110 v ac to DC(measured 150 v dc) for energize an air circuit breaker. this diode use inverse in output to damp...
7. ### Frequency of high voltage diode

Hi I want to buy 2CL2FM . http://www.hvgtsemi.com/upfile/pdf/2012110817253555456.pdf Trr =100 ns I want to find out the real switching frequency of the diode. Can I apply it in the smps with 100 khz of switching frequency? Regards
8. ### Look at the schematic...

What's the use of 5th diode in this schematic..(which is in parallel with cap)? This is a circuit to drive led from mains AC. Sorry if this question is too simple or obvious.. I just want to know what that diode's doing there.
9. ### Diode OF4455??

Hello everybody! I have a burnt diode on a car Bosch control unit. This diode has this reference on it: OF4455 PEM0527 E7 I think it's a Philips TO-220 diode that is no longer manufractured. Does someone know if there's any other equivalent diode I could use? Thank you in advance for your...
10. ### Recommended diode for LNK304 PSU

Hi, all! I want to build the circuit suggested on page 4 of LNK304 datasheet, but I can´t find any place to buy the 1N4005GP diode. Can anyone tell me if is it possible to use an equivalent diode? Thank you!
11. ### Diode with low voltage drop?

Hello I need a diode with less voltage drop like 10SQ050 that is 50V 10A... But i need something that is rated at least 30A or 40A with 50V or more... Is there such a diode available? Also do any of you know what kind of diode is that in image below (in red circle)? Regards!!
12. ### Regeneration Power from Motors back to battery - blocked by DPDT switch - need Diode rating

Hi, Ive tried to find what rating of power diode to wire in series with an emergency shut off button, I'm going to be using a DPDT as I have 2 batteries on 2 circuits - the 11 volt battery to the motors via a robo claw motor shield (2X30A) and a 7 volt battery for an Arduino and logic power on...
13. ### 48 Volt Phantom Power Supply with Photo-Schematic. Transformer Question.

Hey guys, This is my first post and I am happy to have found this website. I am currently working on a project using a PCB and jumper wires to make a 48v Phantom Power supply to be used with multiple condenser microphones. To make a long story short, I found a "mostly" detailed post on another...