This quick blog provides an overview of how to choose the right high voltage, low current power supply equipment for various types of devices.
An electronic device requires a stable power source.
Usually, we simply insert the plug into the socket. However, it is worth noting that there are very few devices powered by 230V (variable voltage) available directly from the socket; most devices require a constant voltage of much lower electric potential.
To provide high voltage, low current power supply, manufacturers design power systems that equip devices to handle the power needs using standard plugs and outlets.
Some devices operate on several voltages of different values. In such a case, the manufacturers might need to lower or increase the input voltage.
That said, there are three different
ways to supply power:
- A power section based on a voltage divider
- A linear stabilizer
- A voltage converter
Why should one consider a voltage
converter?
Voltage converters are used in designing electronic devices to improve efficiency.
Power losses are a common occurrence, which is why converters make a lot of sense.
Fun fact: a voltage converter is expressed as a percentage and is calculated to the ratio of the output power to the power drawn from the input source.
For example, if a voltage converter drawing a high voltage DC power supply has an efficiency level of 80%, 20% power is lost or dissipated by the transistor or the coil.
However, its efficiency is not a
constant value and depends on operating conditions of the converter like:
- Supply voltage
- Output voltage
- Load current
In summary, choosing the right converter
depends on the device being designed. If you’re developing a small portable
device, consider miniature converters. For larger devices, you must use
converters with the right dimensions for the job.