Serial-parallel circuit for testing ageing of multiple direct-current power supplies
A DC power supply and aging test technology, applied in the field of power supply, can solve problems such as uneven current distribution between branches of voltage source parallel circuit, aging energy dispersion of low-power DC power supply, poor adaptability of products with various capacity levels, etc., so as to facilitate popularization Use, simple structure, strong practical effect
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[0018] like figure 1 As shown, the present invention includes a plurality of power supply series branches 3 connected in parallel and an inverter 1 for sending electricity into the power grid, and each of the power supply series branches 3 is used to avoid the gap between the power supply series branches 3 The commutation diode D, the voltage regulator 2 for adjusting the voltage of each series branch circuit, and a plurality of DC power supplies U connected in series, the anodes of the plurality of DC power supplies U connected in series are connected to the anodes of the diode D, The negative poles of the plurality of DC power supplies U connected in series are connected to the input terminal of the voltage regulator 2, the negative poles of the diode D are connected to the positive pole input terminal of the inverter 1, and the voltage regulator 2 The output end of the inverter 1 is connected to the negative input end of the inverter 1, and the output end of the inverter 1 ...
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