Hi,
In my project, I have an ESP32 board which control up to five servos, and some sensors/led connected thru an I2C chip.
I'm looking for the right way to supply power to my circuit, with the following features :
- Input 1 : 5V 6A (taken from a PSU adapter)
- Output 1 : 5V 500mA (permanent)
- Output 2 : 5V 500mA (switchable using a signal from ESP32)
- Output 3 : 5V 5A (switchable using a signal from ESP32)
The output 1 will be used to power the ESP32 board permanently. The ESP32 will go to deep sleep frequently for hours.
The output 2 will be used to power some low current devices (I2C, LEDs, sensors). It will be turned on/off by ESP32 when needed
The output 3 will be used to power high current to 5 servos. It will be turned on/off by ESP32 when needed
I don't really know where to start for building this : I'm familliar with software and "logic" hardware but not with high current things...
What's the name of this kind of circuit ? A "DC current spliter" ? Knowing how to name it will help me to look for informations
I think I need these 3 components :
- 5V 1A decoupling
- 5V 500mA controlable switch
- 5V 5A controlable switch
And then create a circuit like this :
Is that right ?
Which kind of decoupling circuit should I use ?
Which kind of controlabel switch ? transistor for low current, mosfet for high current ? top-side ? low-side ?
Could you give me some websites/tutorials or any documentation to learn how to build this properly ?
Thanks