摘要:
Systems and/or apparatus are provided for automotive electrical systems having power converters that are coupled by using a transformer. An electrical system comprises a boost converter, wherein a first winding of a transformer is coupled between the input node of the boost converter and a first reference node. The boost converter further includes a switch coupled between the first reference node and a second reference node and a diode coupled between the first reference node and the output node of the boost converter. An energy source is coupled between the input node and the second reference node and a first electrical load is coupled between the output node and the second reference node. The electrical system further comprises a voltage converter having an input coupled to a second winding of the transformer, and a second electrical load coupled to the output of the voltage converter.
摘要:
Systems and methods are provided for discharging a high-voltage bus using semiconductor devices. A discharge system for a first voltage rail and a second voltage rail comprises a first semiconductor device coupled to a first voltage rail and a second semiconductor device coupled between the first semiconductor device and a second voltage rail. A control circuit is coupled to the first semiconductor device and the second semiconductor device. In response to a discharge condition, the control circuit is configured to activate the first semiconductor device and gradually activate the second semiconductor device, such that the energy potential between the first voltage rail and the second voltage rail is gradually dissipated through the semiconductor devices.
摘要:
A power converter assembly is provided. The power converter includes at least one switch, a high frequency oscillator coupled to the at least one switch and configured to generate a high frequency waveform based on direct current (DC) power provided thereto, and a power buffer coupled to the at least one switch and the high frequency oscillator and configured to control the operation of the at least one switch based on the high frequency waveform
摘要:
A method and an apparatus are provided for balancing current for each of a plurality of similar phases of a DC/DC boost converter. The method includes the step of measuring a voltage drop of each of the plurality of similar phases at predetermined times by measuring the voltage drop across each phase switching device when current is flowing through the switch. The method also includes the steps of calculating current information for each of the plurality of similar phases in response to the voltage drop measured for each of the plurality of similar phases and balancing current for each of the plurality of similar phases in response to the current information of each of the plurality of similar phases.