Timeline for Using a MOSFET as a switch - not working the way I expected it to
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| May 30 at 16:07 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 31 at 15:23 | answer | added | Varun | timeline score: 0 | |
| Jan 31 at 13:50 | comment | added | brhans | Not an answer to your question, but if you used a buck regulator instead of the LDO you'd double the battery lifetime. You're throwing away about 60% of your battery's capacity as heat in the LDO. | |
| Jan 31 at 13:42 | history | edited | vu2nan | CC BY-SA 4.0 |
edited title
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| Jan 31 at 13:34 | answer | added | Justme | timeline score: 2 | |
| Jan 31 at 13:13 | comment | added | Peter Smith | An alternative to my previous comment is an outboard boost circuit. | |
| Jan 31 at 13:06 | comment | added | Peter Smith | Use a P channel device with the source connected to 3.7V and drain to IPS. Add a resistor from source to gate and pull the gate down to enable it. You may need to use parametric tables as you will need a device characterised for 2.5V operation. Be sure to check the drain current rating. | |
| Jan 31 at 12:03 | comment | added | Varun | For n channel mosfet Gate voltage should be greater than source voltage and Vgs should be greater than Vt. | |
| S Jan 31 at 11:18 | review | First questions | |||
| Jan 31 at 12:06 | |||||
| S Jan 31 at 11:18 | history | asked | Remy Sharp | CC BY-SA 4.0 |