Outdoor power supply parameter recommendation

What information should be included in a power supply specification?

In many cases, this information will decrease the number of usable topologies and controllers. Your specification should also include requirements for the power supply’s output-voltage tolerance, maximum acceptable output-voltage ripple, average output current and peak output current.

How do you choose a power-supply design?

In general, for every power-supply design, you have to make trade-offs between performance, form factor and cost. It is important to know which of these factors has the highest priority, because it will directly impact the quality of your design.

What factors should be considered when choosing a high voltage power supply?

However, there is one factor, unique to high voltage power supplies that must be considered in the choice of the oscillator or inverter topology. Specifically, the capacitance which exists across the secondary winding of the step-up transformer must be isolated from being reflected directly across the power switching semiconductors.

What is the standard voltage for a power supply?

In the UK, the standard is 240Vac at 50 Hz , while in Japan the voltage is normally 100V at 50 or 60Hz. Most power supplies include transformer taps to cover this range, while some new designs cover the range 90Vac to 130Vac and 180Vac to 260Vac without taps.

Is it cost effective to specify a power supply?

It is not generally cost effective to specify a power supply with an output voltage greater than 20% over the maximum voltage actually needed in a particular application. III. Power supplies are normally designed for continuous operation at the full current specified in the data sheet.

What voltage does a high voltage supply use?

In general, low power high voltage supplies having outputs between 1W and 60W typically use a dc input voltage of 24Vdc or 28Vdc, while higher power units operate from the ac power line.