Timeline for Very low-quiescent (<2mA), 5V, simple "speaker" driver
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 31, 2014 at 13:44 | vote | accept | Slowbs | ||
| Jul 31, 2014 at 13:42 | answer | added | Slowbs | timeline score: 0 | |
| Jul 29, 2014 at 17:23 | answer | added | Spehro 'speff' Pefhany | timeline score: 1 | |
| Jul 29, 2014 at 14:38 | comment | added | Slowbs | To clarify the output requirements: I need the coil to be capable of producing both short digital pulses (typically 4ms long, a few hundred ms apart) with fairly sharp edges. I also need it to be able to produce analogue signals up to a 1kHz cleanly. I'm not concerned about linearity or distortion, but it needs to be clean, so a switched/PWM approximation will not suffice. | |
| Jul 29, 2014 at 14:07 | answer | added | Dave Tweed | timeline score: 0 | |
| Jul 29, 2014 at 13:56 | history | edited | Slowbs | CC BY-SA 3.0 |
corrected figures.
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| Jul 29, 2014 at 13:54 | comment | added | Slowbs | Spehro, I was mistaken, coil is 30ohms, current is ideally 150mA. Will update post. | |
| Jul 29, 2014 at 13:46 | answer | added | George Herold | timeline score: 0 | |
| Jul 29, 2014 at 13:37 | comment | added | Spehro 'speff' Pefhany | I'm not clear on the signal. 60mA x 8 ohms is about 0.5V, less than a tenth of 'rail-to-rail' on a 5V supply, and what is the nature of the analog signals? Bipolar, unipolar, what? | |
| Jul 29, 2014 at 13:32 | review | First posts | |||
| Jul 29, 2014 at 13:35 | |||||
| Jul 29, 2014 at 13:30 | history | asked | Slowbs | CC BY-SA 3.0 |