Timeline for Voltage Divider Efficiency
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 8, 2020 at 2:40 | review | Close votes | |||
| May 22, 2020 at 3:08 | |||||
| May 8, 2020 at 2:25 | comment | added | brhans | Does this answer your question? When would I use a voltage regulator vs voltage divider? | |
| May 7, 2020 at 23:42 | answer | added | Spehro 'speff' Pefhany | timeline score: 0 | |
| May 7, 2020 at 23:35 | answer | added | alex.forencich | timeline score: 0 | |
| May 7, 2020 at 22:58 | comment | added | zvolk4 | I'll look into the LM317 ICs quick. I hope they'll support the right current and voltage needs. | |
| May 7, 2020 at 22:54 | answer | added | Justme | timeline score: 1 | |
| May 7, 2020 at 22:54 | comment | added | user16324 | If you draw any power from that voltage divider , that'll change its division ratio and the voltage will reduce. With such high resistances, it'll reduce to practically 0. Use a voltage regulator and keep looking for a negative one (or learn how to use a LM317 (+ve) and LM337 (-ve). | |
| May 7, 2020 at 22:53 | comment | added | Peter Bennett | What current do you need for the 10 volt supplies? The voltage you actually get from a voltage divider depends on the current you draw from the divider as well as the resistor values - you can treat your load as another resistor in parallel with the bottom resistor. LM317 and LM337 are adjustable positive and negative regulators. | |
| May 7, 2020 at 22:53 | comment | added | D.A.S. | Linear Power efficiency is always the ratio Vo/Vi since they share the same current. The output impedance must be ~1% of the load so how you do that efficiently without wasting current is done easily in regulators using negative feedback. Without load specs ,no advice can be given | |
| May 7, 2020 at 22:48 | history | asked | zvolk4 | CC BY-SA 4.0 |