| ??? 12/24/05 12:00 Read: times |
#105875 - 2 power supply problems |
i have got two different projects and two different problems 1> I got undefined response in my digital ckt using 8051 when i switch load like fan or computer in my room. my ans: use ---L---|---L--- section , ferrite bead , choke | C etc. but i want more details. 2> in my other project which is battery operated (6V,9V,12V) but i want 5v for my ckt. my voltage regulator 7805 itself is eating 3.2mA which is draining battery to early. ans:use low dropout and low power regulator plz send me more details can u help me onthis . |
| Topic | Author | Date |
| 2 power supply problems | 01/01/70 00:00 | |
| Experts are in Christmas holidays.. | 01/01/70 00:00 | |
| low pwr chips | 01/01/70 00:00 | |
| Improved '51 | 01/01/70 00:00 | |
| Re:low pwr chips | 01/01/70 00:00 | |
| try first | 01/01/70 00:00 | |
| LP2950CZ-5.0 is good one | 01/01/70 00:00 | |
| Answers | 01/01/70 00:00 | |
| thank u kai i am already having | 01/01/70 00:00 | |
| Further questions | 01/01/70 00:00 | |
| The often overlooked fact is that "power | 01/01/70 00:00 | |
| i have used 3300uf storage cap | 01/01/70 00:00 | |
| posts in gobbelygook | 01/01/70 00:00 | |
| i was not aware | 01/01/70 00:00 | |
| why should I try to decipher what you | 01/01/70 00:00 | |
| capacitor postions | 01/01/70 00:00 | |
you need 10-100nF directly (less | 01/01/70 00:00 | |
| It's the neglectin of solid ground plane | 01/01/70 00:00 | |
| thank you kai i will try with solid gnd | 01/01/70 00:00 | |
| Directly underneath the signal traces | 01/01/70 00:00 | |
| a suggestion | 01/01/70 00:00 | |
| Simple Switchers LM2575 | 01/01/70 00:00 |