USB-C power source for systems based on 8080A processor with voltage sequencing.
Designed by Tomas Pavlovic in Slovakia
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Description I made this power source originally for my PMI-80 KIT. But it can be used for any other board based on 8080A processor. It provides three voltages: +5V, up to 3A (depends on USB adapter)…
Read More…I made this power source originally for my PMI-80 KIT. But it can be used for any other board based on 8080A processor.
It provides three voltages:
Main +5V comes directly from USB adapter and is switched by P-MOSFET. Negative -5V is generated from +5V with switched capacitor circuit TPS60403. And +12V is produced by voltage boost converter TLV61046A.
Outputs +5V and +12V are enabled only when -5V is present. It is requirement for 8080A processor.
The board also contains ON/OFF switch.
The power source comes assembled and tested. You can choose between versions with or without ON/OFF switch. The version without switch powers on as soon as you plug it to the USB adapter.
Power cable is included.
USB cable is not included.
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