Patent ID: 8975782
Filing Date: 2015-03-10
Classification: B60R

Abstract:
1. A power Y-adapter for providing AC power at a high voltage to an output end of the Y-adapter from at least two input ends of the Y-adapter, to each of which input ends AC power of a lower voltage is provided with a phase difference between the AC power provided to the two input ends, comprising: a first polarity sensitive current isolation device associated with a first input connector which is adapted to be connected to a first receptacle of a first voltage and phase, the first polarity sensitive current isolation device having a first input terminal and a second input terminal, the first input terminal being connected to a hot wire terminal of the first input connector and the second input terminal being connected to a neutral terminal of the first input connector; a second polarity sensitive current isolation device associated with a second input connector which is adapted to be connected to a second receptacle of substantially the same voltage as the first receptacle and at a different phase than the first receptacle, the second polarity sensitive current isolation device having a first input terminal and a second input terminal, the first input terminal being connected to a neutral terminal of the second input connector and the second input terminal being connected to a hot wire terminal of the second input connector; each of the first and the second polarity sensitive current isolation devices having a first output node and second output node in series; a control section in series with the output nodes of the first and the second polarity sensitive current isolation devices; and an output section having an output connector with a first hot wire terminal and a second hot wire terminal controlled by the control section; such that voltage signals supplied to the hot wire terminals of the first input connector and the second input connector which are out of phase produce a voltage of higher magnitude between the first and the second hot wire terminals of the output connector; a power supply unit including a transformer having a first input terminal and a second input terminal connected to the hot wire terminal and the neutral terminal of the first input connector, respectively; a bridge rectifier having two input terminals connected to two output terminals of the transformer and a positive output terminal and a negative terminal connected to a ground; a power output connected to the positive output terminal of the bridge rectifier; a first voltage output connected to the positive output terminal of the bridge rectifier through a first resistor, wherein the first voltage output provides a first voltage; and a second voltage output connected to the positive output terminal of the bridge rectifier through a second resistor, wherein the second voltage output provides a second voltage.