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neoredstone
modified 4 years ago

Charge Pump 5v to 12v

6
2
499
04:51:25
69-71% Efficiency. Converts Micro-controller 5v@141mA into 12.3v@40mA or 5v@114mA into 12.7v@32mA with 0.198-0.243v ripple. Uses Schottky diodes. Reaches a max voltage of 14.4v@11mA with no load. Short circuit protection is provided by the Micro-controller (short causes poly-fuse to trigger, and prevents clock from running). Useful as a 12v battery trickle charger. The two switches on the bottom are the on/off switches. The switch on the top right is the load switch. The switch on the top left is the load state switch. It is recommended that the clocks be enabled after a short delay to prevent too much inrush current. It is also recommended to turn off the clocks if the input voltage rises above 5v. An error will occur in the simulator if you toggle the bottom switches to fast (this is due to an invalid state which can occur in the mosfets), so slow down and wait for the voltage on the gate to come to 0v before enabling it again. This shouldn't be an issue in reality because of short circuit protection and proper programming.
published 4 years ago
Redstone_guy
4 years ago
Closing SPST switch = "Cannot find solution" for some reason
neoredstone
4 years ago
This is due to an invalid state that the mosfets can become configured in, which only exists in the simulator. If you wait for the gate voltage to reach 0v before closing the switch, there shouldn't be a problem.

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