Greek Sand outdoor power supply parameter configuration

What are the primary power supply specifications?

The primary power supply specifications are the voltage and current output parameters. In terms of the voltage, the power supply may be fixed or it may have a variable output. It is necessary to check whether the power supply has a fixed or variable output.

What are the parameters of a power supply?

The ripple and noise parameters are another important power supply specification. It is possible that noise and other impulses on the power line can be transferred to the output of the circuit that is being powered. In order to minimise this, especially for sensitive circuits it is necessary to ensure that the power lines are as clean as possible.

What is the temperature stability of a power supply?

Figures for the power supply temperature stability will be given in the data-sheet. The parameter is measured as a percentage or absolute voltage change per degree C. Typically, this might be in the region of 0.02% / °C or 2 mV / °C. Naturally these figures are only a guide to what some supplies state.

What are the different types of protection in a power supply?

There are two main forms of protection that can be found in linear and switch mode power supplies: Short circuit protection: Short circuit protection is needed in case the equipment being powered develops a short circuit or starts to take current beyond its design current.

Does a power supply have a variable range?

If the power supply has a variable range then it is necessary to ensure that it covers the required range. In terms of the current it is necessary to ensure that the power supply will be able to provide the required level of current and have a degree of margin beyond that minimum requirement.