Blog

Compare step-down voltage converters with PWM-to-voltage converters, including how they work, output differences, applications, and selection.

Compare step up and step down voltage converters, learn which direction you need, and size the transformer for watts, VA, surge, and frequency.

Compare DC and AC voltage converters by current type, topology, waveform, ratings, applications, safety, and selection requirements.

Learn how a current to voltage converter uses an op-amp, feedback resistor, and negative feedback to turn sensor current into voltage.

Learn how to size a 220 to 110 voltage converter by voltage, wattage, startup surge, frequency, protection, and appliance type.

Learn what a voltage converter is, how major converter types work, and how to choose the right voltage, capacity, frequency, and protection.

See how a three-phase autotransformer transfers power, changes voltage, uses shared windings, and differs from an isolation transformer.

A three phase auto transformer changes the voltage of a three-phase AC supply while keeping all three phases electrically connected through shared windings. Its main function is to step voltage up or down efficiently when galvanic isolation is not required. Because part of each winding is common to both input and output, the design can use less […]

Learn how a JOHSUN three-phase autotransformer works, including construction, wiring, symbols, step-up and step-down operation, and selection.