Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [power-management]

The tag has no usage guidance.

0
votes
0answers
25 views

STM6600 voltage divider on VCC for high voltage applications

I'm evaluating the STM6600 on/off controller. My application has a 2-series LiPo battery with a voltage range of 6 to 8.4V, so I need to put a voltage divider before VCC as described in AN3271 (...
0
votes
2answers
62 views

Quiescent current on OFF/ON controller ICs seems high

I want to improve an existing OFF/ON circuit in a project I have. Why do most off/on controller ICs have such a high quiescent current (approx 6 uA)? Their sole purpose is to manage an off/on battery ...
0
votes
0answers
23 views

Is there a Energy Harvesting Power Management and Battery Charging EVM dev kit (e.g. BQ25504) with easily adjustable voltage thresholds?

I have a BQ25504EVM-674 Energy Harvesting Power Management with Battery Charging (EHM) development board by Texas Instruments. It fulfills my requirement of charging an energy store (e.g. supercap/...
2
votes
3answers
111 views

Why system energy is equal to 1/f?

I am studying Intel speed shift. I see a slide: Reference I don't understand, why the green line 1/f means system energy, I think more performance should need more energy as the red line (compute ...
0
votes
0answers
16 views

Does MP2617H power management IC need an external regulator to supply “Vin” using a 12V solar panel?

I'm designing a LiPo battery charger using MP2617 power management IC. When I referred to the datasheet it tells that these ICs have an internally integrated voltage regulator for the battery charging....
0
votes
2answers
69 views

The single-power-button logic of the cell phone [closed]

As known the cell phone has a single power button (most if not all), long press of it can power on the phone or choose to turn off the phone in the UI (my phone is Samsung). I wonder how is it ...