Summary of 5V & 12V Regulated Power Supply
This article describes a regulated power supply project utilizing the 7800 series voltage regulator in TO220 packages. It converts 240 VAC input into stable 5 VDC and 12 VDC outputs at 600 mA, featuring low ripple, thermal protection, short circuit protection, LED indicators, and mounting holes for easy integration into TTL and CMOS projects.
Parts used in the 5V & 12V Regulated Power Supply:
- 7800 series voltage regulator (TO220 package)
- Mains transformer
- Power Battery Terminal (PBT)
- External On/Off switch
- LEDs for output indication
- PCB with four 3.2 mm mounting holes
his project can be used to power up TTL and CMOS based projects, it provides 5 VDC & 12 VDC outputs with an onboard mains transformer. The project is based on the industry popular 7800 series voltage regulator in TO220 packages.
Features
- Input: 240 VAC
- Output: 5 V, 12 V @ 600 mA regulated low ripple DC voltage
- Thermal overload/short circuit protection (provided by IC feature)
- Power Battery Terminal (PBT) for easy input and output connection
- External On/Off switch connection possible
- LED indication for outputs
- Four mounting holes of 3.2 mm each
- PCB dimensions 87 mm x 49 mm
Schematic
For more detail: 5V & 12V Regulated Power Supply
- What voltage outputs does this project provide?
It provides 5 VDC and 12 VDC outputs. - Can this project be used for TTL and CMOS based projects?
Yes, it can be used to power up TTL and CMOS based projects. - Does the project include thermal overload protection?
Yes, thermal overload and short circuit protection are provided by the IC feature. - How is the input connected to the project?
The input is 240 VAC via a Power Battery Terminal (PBT). - Is an external switch connection possible?
Yes, an external On/Off switch connection is possible. - What indicates that the outputs are active?
LED indication is provided for the outputs. - What are the dimensions of the PCB?
The PCB dimensions are 87 mm x 49 mm. - How many mounting holes does the PCB have?
The PCB has four mounting holes of 3.2 mm each.
