| ??? 01/29/07 18:22 Read: times |
#131655 - Do we? Responding to: ???'s previous message |
Cyrille Ngassam said:
I'm wondering myself why, in technics, we use mainly the voltage to work with, leaving the current Do we? Current and voltage go hand-in-hand - linked by Ohm's law. As Andy Peters noted, voltage is (usually) easier to measure with a meter or a scope (because you don't have to break the circuit) - but that certainly doesn't mean that we ignore current! what is the benefits to drive data by using voltage, not current ? Actually, TTL is current driven! CMOS (and thermionic valves or "tubes") is voltage-sensing, but you still need current to charge & discharge all the capacitance that's everywhere... I know those questions are off topics So why didn't you put it in the 'Chat' section, then? |
| Topic | Author | Date |
| Why people used to use voltage instead of current? | 01/01/70 00:00 | |
| voltage vs current | 01/01/70 00:00 | |
| CMOS likes voltage | 01/01/70 00:00 | |
| Do we? | 01/01/70 00:00 | |
| Current signals are widely used in technics! | 01/01/70 00:00 | |
| There is "current-mode" logic, too. | 01/01/70 00:00 | |
| including good ol' TTL | 01/01/70 00:00 | |
| Wait a minute... | 01/01/70 00:00 | |
Please don't look bad at me Mr Andy Neil | 01/01/70 00:00 | |
| Why people ask questions & then just run away? | 01/01/70 00:00 | |
| IIRC, Cyrille is in war-torn Africa ... | 01/01/70 00:00 | |
| Cyrille is a nice guy! | 01/01/70 00:00 | |
| Yes, and exceedingly polite and respectful | 01/01/70 00:00 |