Vehicle inverter for powering consumer electronic devices

Abstract

An inverter for inverter DC power, such as but not limited to the type commonly employed in vehicle power systems, in to AC power, such as but not limited to the type commonly employed to power consumer electronic devices. The inverter may be configured to electrically isolate primary and secondary stages without requiring separate primary and secondary stage power supplies.

Description

technical field [0001] The present invention relates to inverters of the type operable to invert low voltage DC power into AC power such as but not limited to the type commonly used in vehicle power systems sufficient to power consumer electronics . Background technique [0002] In recent years, 120Vac / 230Vac power supplies for consumer electronics in vehicles have become an essential feature in the automotive industry. In some applications, the 120Vac / 230Vac power supply comes from a 12Vdc vehicle battery. Typically 12Vdc is first boosted to a higher level DC voltage, eg 170Vdc / 340Vdc, which is then inverted into a modified sine wave AC voltage. This 120Vac / 230Vac power supply can be rated up to one kilowatt. figure 1 A typical circuit configuration for the inverter 100 is shown in . [0003] exist figure 1 In , the boost converter 102 is shown as a push-pull converter with one of a full-bridge rectifier or a center-tapped rectifier 104, and the output inverter 106 is ...

AI Technical Summary

Problems solved by technology

However, due to the use of components with large power ratings like power transformers, the designed isolated SMPS is large in size and relatively expensive

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