Now, even though you may find an array of power supplies for DIY projects in the market, making it yourself is bound to let you save a considerable amount of money while giving you the complete freedom to decide its specifications. By making the power supply design yourself, you will be able to decide the ratings for all the components such as capacitors, regulators, power switch, etc. and achieve remarkably accurate output.
Limitations
The foremost factor to consider when making power supply design is the limitations you the project may have. These limitations can be of diverse nature with size, weight and cost being the three most critical factors.
Output
The next factor to consider is obviously the output desired from the power supply. Though achieving the desired voltage may come easy for you, it is extremely important to ensure that the supply is delivering the desired amperage as well.
Input
Once you are done with evaluating the output requirements from the power supply design, you will need to decide the input accordingly. If your output requirements permit, it is recommended that you use a DC battery for the input of the supply.
Heat Sink
This is another extremely important factor which despite of its critical is often overlooked by many of us. Hence, when designing the power supply, you must evaluate the heat dissipated by the power supply and use a heat sink accordingly.
Protect
In order to give the power supply design the much needed shield against fluctuations and abrupt power, it is recommended that you protect the supply by using a suitable fuse and power switch.
Once you are sure about all aspects of the power supply needed for your project; no matter whether you need to buy a reliable power switch or output capacitors, a suitable merchant can be easily discovered using any internet search engine without having to go out in the heat and dust or having to bear any of the hassles that come with the conventional way.