| ??? 05/14/06 15:16 Modified: 05/14/06 15:18 Read: times |
#116181 - Two NAND's? Responding to: ???'s previous message |
If he needs an on/off control, wouldn't substituting two NAND's for the two inverters work.
One input, common to both gates, would be the "ON" signal and the other would be the color select. When the "ON" signal is low, neither gate would sink the drive current. When it's high, they'd reflect the state of the color select in the same manner as the two inverters do it. RE |
| Topic | Author | Date |
| Interfacing a Bi-colour LED | 01/01/70 00:00 | |
| a link to the bi-color LED datasheet | 01/01/70 00:00 | |
| Datasheet!! | 01/01/70 00:00 | |
| LED info | 01/01/70 00:00 | |
| He is right, the Vf max for the LEDs you | 01/01/70 00:00 | |
| More info on H bridge? | 01/01/70 00:00 | |
| that is what a H bridge usually is used | 01/01/70 00:00 | |
| be careful, but roll-yer-own | 01/01/70 00:00 | |
| Why no use a DPDT 5VDC relay? | 01/01/70 00:00 | |
| LED go poof | 01/01/70 00:00 | |
| Port pin go POOF! | 01/01/70 00:00 | |
| ?` | 01/01/70 00:00 | |
| Two inverters | 01/01/70 00:00 | |
| darn | 01/01/70 00:00 | |
| YES! | 01/01/70 00:00 | |
| Third color possible? | 01/01/70 00:00 | |
| Very nice however | 01/01/70 00:00 | |
| Two NAND's? | 01/01/70 00:00 | |
| how many LEDs | 01/01/70 00:00 | |
| a slight problem | 01/01/70 00:00 | |
| dynamic refresh | 01/01/70 00:00 | |
sure, but | 01/01/70 00:00 |