Commodore Plus/4 64 128 VIC20 Stock Power Supply High Efficiency Low Noise 5V 9VAC Replacement V2
It replaces the internal board with a high-efficiency, high-current capability, low noise, fully protected buck regulator.
Size: 69 x 53 x 1.2 mm (L x W x H), 2-layer, 1 oz of copper.
It works with 100-240V and 50/60 Hz transformers.
The design features a double footprint to accommodate different diode bridges.
Minimal BOM list for an inexpensive solution.
The nominal 5V output is adjustable up to 5.25V (±2.5%) to compensate for power cord line drop (recommended setting: 5.15V).
Thermal, under-voltage, over-current, and short-circuit protections, soft-start with inrush current limitation are included.
Additionally, it implements overload protection on AC lines using polymeric PTC resettable fuses.
Power Good and Fail states are visible.
There is no need to add a C64 SAVER circuit, either internally or externally, to the computer!
The new version includes an HF suppressor/EMI filter and a bottom adjustment potentiometer for easier fine-tuning of the 5V output.
12V DC input, room temperature, still air:
94% efficiency at 5.15V / 0.5A
95% efficiency at 5.15V / 1.5A
93% efficiency at 5.15V / 3.0A
90% efficiency at 5.15V / 4.0A
(Original board with LDO < 50%)
Suitable for C64 (all models, including accessories and expansions) and C128.
Usable with VIC20 (CR) and Plus/4 (requires a change of the connector).
Commodore Plus/4 64 128 VIC20 Stock Power Supply High Efficiency Low Noise 5V 9VAC Replacement V2
*PCBWay community is a shared platform and we are not responsible for any design issues.
- Comments(6)
- Likes(5)
- buoncri Sep 03,2024
- Francisco Meza Aug 25,2024
- Mathias DELLACHERIE Aug 22,2024
- Paweł Janowski Aug 19,2024
- (DIY) C64iSTANBUL Aug 18,2024
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