发明名称 |
MEJORAS EN UNA FUENTE DE POTENCIA ININTERRUMPIBLE CON DEVANADO DE DERIVACION AISLADO |
摘要 |
<p>An uninterruptible power supply including a transformer having a first input winding normally coupling an inverter AC source with a critical AC load, which transformer also includes a second input winding operable to supply power from a bypass source to the load in the event of malfunction of the inverter circuit. The inverter is of the four-quadrant pulse-width-modulated type, thereby to permit recharging of the battery which serves as the DC source to the inverter. An inductance is provided for varying the phase relationship between a utility voltage source and the inverter voltage to produce minimum real inverter current and the "break-even" operating conduction, and a step-up device is provided for increasing the utility voltage to further minimize the break-even inverter current required during normal operation, and to maximize the through-put efficiency.</p> |
申请公布号 |
MX160227(A) |
申请公布日期 |
1990.01.09 |
申请号 |
MX19860001551 |
申请日期 |
1986.02.14 |
申请人 |
EXIDE ELECTRONICS INTERNATIONAL CORPORATION |
发明人 |
WILLIAM J. RADDI;ROBERT W. JOHNSON, JR.;JOHN G. TRACY |
分类号 |
G05F1/12;H02J9/06;(IPC1-7):F21S3/00;G21H1/00 |
主分类号 |
G05F1/12 |
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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