发明名称 |
Method of converting a direct current voltage from a source of direct current voltage, more specifically from a photovoltaic couse of direct current voltage, into a alternating current voltage |
摘要 |
An inverter is devised to avoid high-frequency voltages at input terminals and to allow good efficiency thanks to its simple and cost-optimized circuit layout. This is achieved by a method of converting a direct current voltage, more specifically from a photovoltaic source of direct current voltage, into an alternating current voltage at a frequency through a bridge circuit comprising switching elements (V 1 -V 4 ) and free-wheeling elements (D 1 -D 4 ), said switching elements (V 1 -V 4 ) being on the one side gated at the frequency and on the other side clocked at a high clock rate, a direct current voltage circuit, an alternating current voltage circuit and a plurality of free-wheeling phases being provided. It is provided that, during the free-wheeling phases, the alternating current voltage circuit is decoupled from the direct current voltage circuit by means of a switching element disposed in the direct current voltage circuit, a free-wheeling current flowing through one of the free-wheeling elements (D 1 ) in the bridge circuit when in the decoupled state.
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申请公布号 |
US2005286281(A1) |
申请公布日期 |
2005.12.29 |
申请号 |
US20050154094 |
申请日期 |
2005.06.16 |
申请人 |
VICTOR MATTHIAS;GREIZER FRANK;BREMICKER SVEN;HUBLER UWE |
发明人 |
VICTOR MATTHIAS;GREIZER FRANK;BREMICKER SVEN;HUBLER UWE |
分类号 |
H02M7/48;H02M7/537;(IPC1-7):H02M7/537 |
主分类号 |
H02M7/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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