| ??? 10/08/09 18:39 Read: times |
#169555 - Bias Voltage + diode? Responding to: ???'s previous message |
Thank you for all your answers. I will try your suggestions. Oliver, I have a question. Why do you say that I need a bias voltage of 4V at the non-inverting input of the LM339?. Isn´t the signal allready mounted on a 4,5 V DC? Another question: would you suggest me to use Schottky diodes (1N5819) instead of fast diodes (1N4148)? I know that I can´t use a rectifier diode (1N4007) because the frecuency is too high, but I don´t understand the exact difference between using 1N4148 or 1N5819. Thanks for your time. |
| Topic | Author | Date |
| Ultrasonic Measuremnt | 01/01/70 00:00 | |
| Don't you need a load for D2? | 01/01/70 00:00 | |
| You wont see much across D2 | 01/01/70 00:00 | |
| LM339 input bias current | 01/01/70 00:00 | |
| Bias Voltage + diode? | 01/01/70 00:00 | |
| Threshold voltage | 01/01/70 00:00 | |
| I would give this a try... | 01/01/70 00:00 | |
| ? | 01/01/70 00:00 | |
| Greinacher voltage doubler | 01/01/70 00:00 | |
| You have a good memory!!! | 01/01/70 00:00 | |
| Why use 9V | 01/01/70 00:00 | |
| Availability.. | 01/01/70 00:00 | |
| True but.. | 01/01/70 00:00 | |
Absolutely! | 01/01/70 00:00 | |
| Answers... | 01/01/70 00:00 |