| ??? 04/21/10 07:14 Read: times |
#175201 - ASCII schematic is useful!!! Responding to: ???'s previous message |
http://www.8052.com/faqs/120512
I compared the ASCII schematic with the first circuit shown in the above faq. Both of them are similar except for minor changes as follows: In the circuit in Faq there are is one 2.2 K resistor between uc pin and base of PNP . Also there is a 10 K resistor between 5V and base of PNP Finally the base of the NPN is grounded through a 2.2 K resistor. Will these three changes affect any of the functioning of the circuit? Also are the resistor values dependent on the final relay voltage? What is the maximum current that this circuit can supply?Is it limited only by the supply of 5V supply? |
| Topic | Author | Date |
| solenoid driver | 01/01/70 00:00 | |
| switch on and off at high speed | 01/01/70 00:00 | |
| speed range | 01/01/70 00:00 | |
| the typical circuit | 01/01/70 00:00 | |
| clarification | 01/01/70 00:00 | |
| "ASCII schematic" | 01/01/70 00:00 | |
| ASCII schematic is useful!!! | 01/01/70 00:00 | |
| answers | 01/01/70 00:00 | |
| It's in the FAQ | 01/01/70 00:00 | |
| Thanks for the reference | 01/01/70 00:00 | |
| Have you considered a "solenoid driver"? | 01/01/70 00:00 | |
| Ready made solenoid drivers | 01/01/70 00:00 | |
| recognized my error | 01/01/70 00:00 | |
| This is not rocket-science | 01/01/70 00:00 | |
| Check the data sheet you linked... | 01/01/70 00:00 | |
Yes, people do have to read the datasheet | 01/01/70 00:00 | |
| re: solenoid driver | 01/01/70 00:00 |