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DC to DC converter

DC/DC converters, DC to DC converters, also known as DC to DC converters, are electronic circuits that convert the DC voltage to AC voltage before converting it, transform it, and then convert it back to DC voltage.

Since DC voltage cannot be transformed, DC/DC converters work like electronic switching power supplies that first convert the DC voltage into an AC voltage. This is then transformed into the desired AC voltage using a transformer and then converted into DC voltage. This can be done with a flyback converter or a rectifier. This is followed by smoothing of the DC voltage in filter elements.

DC-DC converter for PV modules, PowerBox from SolarEdge

DC-DC converter for PV modules, PowerBox from SolarEdge

In order to use the smallest and lightest transformer possible, the switching frequencies of the switching power supply are several kilohertz, often around 40 kHz.

Principles of voltage converters

Principles of voltage converters

DC/DC converters use either pulse width modulation( PWM) or quasiresonant currentless switching, zero current switching (ZCS) or zero voltage switching( ZVS), such as the Sine Amplitude Converter ( SAC). Such DC/DC converters can be used, among other things, to convert the battery voltage of a motor vehicle to a higher DC voltage. They are also used in many battery-powered devices and in photovoltaic( PVA) systems.

Important characteristic values of DC/DC converters are the efficiency, the input voltage range, the dielectric strength between input and output, the protection against short circuit, overvoltage and excessive temperatures, the shielding against interference radiation and the output voltages.

Informations:
Englisch: DC to DC converter
Updated at: 17.10.2019
#Words: 242
Links: distributed computing (DC), also known as (aka), voltage, access condition (AC), power (P)
Translations: DE
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