发明名称 |
DC/DC BOOST CONVERTER WITH RESISTORLESS CURRENT SENSING |
摘要 |
A DC to DC boost converter circuit receives a DC input voltage and converts it to a DC output voltage at a different voltage level than the DC input voltage. The DC to DC boost converter includes a switching power converter for receiving the input voltage on an input and converting the input voltage to an output as the DC output voltage in response to pulse control signals. A switching controller generates the pulse control signals during a switching cycle. Current sensing circuitry limits a current passing through the switching power converter. The current sensing circuitry generates an overload signal when the current exceeds a reference value. The current sensing circuitry sensing the current with a current sensing resistor having a size of at least approximately 500 ohms.
|
申请公布号 |
US2009086517(A1) |
申请公布日期 |
2009.04.02 |
申请号 |
US20070865645 |
申请日期 |
2007.10.01 |
申请人 |
SILICON LABORATORIES INC. |
发明人 |
WEI DAZHI;WESTWICK ALAN L. |
分类号 |
H02H7/12 |
主分类号 |
H02H7/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|