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 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 is a good power supply?
Most good supplies should offer noise and ripple figures of better than 10 mV RMS and for switching supplies figures of 50mV or less should be achievable in many cases, although very high current supplies may have slightly higher values.
How do I choose the right power supply for my application?
Some products commonly have UL, TUV, EN, and so on built into the power supply. These are just some of the parameters that are important to help you choose the right power supply for your application. Ultimately, it depends on your final application, and what parameter is most important to you when choosing the power supply.
What is a stability specification for a power supply?
For the stability specification, the output voltage of the power supply will be measured over a period of time under constant load and input voltage and the voltage drift measured. Typically, this will be a few millivolts (e.g. five to ten) over a period of ten hours.
What are the electrical parameters that need detailed specifications?
There are a few electrical parameters pertaining to supplies that need detailed specifications. They include how to deal with supply ripple and conducted noise, the handling of inrush current, thermal considerations, and electromagnetic compatibility (EMC) constraints.
What parameters should be considered when
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