发明名称 |
PROTECTION SYSTEM AND METHOD FOR DC-DC CONVERTERS EXPOSED TO A STRONG MAGNETIC FIELD |
摘要 |
A protection system and method for protecting a direct current to direct current voltage converter (DC-DC converter) from a potentially damaging excessive output current due to exposure to a relatively strong magnetic field is disclosed. The system includes a detector circuit configured to monitor a signal characteristic of the DC-DC converter, and a linear regulator having an output coupled to the load output of the DC-DC converter. The system further includes a control system configured to disable a load output of the DC-DC converter and enable the output of the linear regulator when the detector detects that the signal characteristic has moved outside a predetermined threshold range. Moreover, the control system is further configured to disable the output of the linear regulator after a predetermined time period, and enable the load output of the DC-DC converter after the predetermined time period.
|
申请公布号 |
US2012242308(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201213426947 |
申请日期 |
2012.03.22 |
申请人 |
ADEEB MOHAMMAD AHSANUL;ENDREDY JOHN;NGO CHRISTOPHER TRUONG;ROZEK ASHRAF;RF MICRO DEVICES, INC. |
发明人 |
ADEEB MOHAMMAD AHSANUL;ENDREDY JOHN;NGO CHRISTOPHER TRUONG;ROZEK ASHRAF |
分类号 |
G05F1/46 |
主分类号 |
G05F1/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|