The goals of OPEN Power is to produce 3 final Prototypes. All Power Supplies will have USB Charging of Lithium polymer batteries and a Load Sharing and Uninterruptible power when disconnected.
|Prototype 1a:||Simple Constant voltage Power Supply |
Variable from 0.6V to 12V.
Will Include 5V and 3V Rails.
Voltage indicator will be achieved using
comparators and LED Array.
This was chosen to reduce cost
as much as possible and keep each
board with components under $2.75.
|Prototype 2:||A Constant Voltage Constant current |
Power Supply 0.6V to 12V.
In addition to an adjustable Negative Rail.
Voltage, Current and Power of the
positive Rail will be displayed on
a compact OLED. Negative Rail
Voltage will also Be displayed
as well as the Battery Voltage.
|Prototype 3a:||Utilizes a Boost Inverting IC to get |
+-13V and LDO's to Reduce the
Voltage between 0 and 12V.
Both +- Rail Voltage, Current
and Power will Be displayed
on a Full Color LED Display.
|Prototype 3b:||Revision 3b will have a DAC Output,
2 Analog input and 4 DIO Pins.
Since the circuit is completely
analog the MCU can perform
Double duty and Potentially
be used as a Crude Oscilloscope
or Logic Analyzer.
|Prototype 3c:||Revision 3c will switch from the|
Samd21 to the Samd51 for faster
Procecesing power and