USB PD PSU: Unterschied zwischen den Versionen
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==System design== | ==System design== | ||
USB PD => BUCK Converter => Liniear Converter => current sink<br> | USB PD => BUCK Converter => Liniear Converter => current sink<br> | ||
| − | =>Microcontroller | + | =>Microcontroller => Display => Control |
==USB PD== | ==USB PD== | ||
Version vom 9. September 2020, 08:10 Uhr
Lab Bench Power Supply with USB power delivery input
Inhaltsverzeichnis
Design constraints
- Powered via USB-C PowerDelivery
- 0V - 16V
- 0A - 3A
- CC-Mode
- CV-Mode
- show regulation mode (CC or CV)
- show the actual current
- show the actual voltage
- controlled via a microcontroller
Research
System design
USB PD => BUCK Converter => Liniear Converter => current sink
=>Microcontroller => Display => Control
USB PD
STUSB4500
- can be standalone
- I2C interface
- factory setting 20V?
- Arduino Setting script [3]
FUB302
- requires external MCU
TPS65986
BUCK Converter
Liniear Converter
LT3080
Datasheet[4]
- Max 1.1A
- 1.2V - 36V
- Dropout Voltage 350mV
- Min Load current 0.5mA
LT3081
Datasheet[5]
- Max 1.5A
- 1.2V - 36V
- Dropout Voltage 1.5V
- Min Load current 5mA
- Current Monitor
- Current Limit
- Temp Monitor
Current sink
LTC3632
negative supply as a constant current source with transistor
