发明名称 |
APPARATUS AND METHOD FOR SAMPLING INDUCTOR CURRENT OF BRIDGELESS PFC CIRCUIT |
摘要 |
Disclosed are an apparatus and a method for sampling inductor current of a bridgeless PFC circuit. The apparatus comprises a first sampling unit, a second sampling unit, and a third sampling unit. The apparatus for sampling inductor current of the bridgeless PFC circuit is connected to a bridgeless PFC circuit. The first sampling unit is connected in series to a first switch tube of the bridgeless PFC circuit, and is used for sampling current passing through the first switch tube to acquire a first sampled signal V1. The second sampling unit is connected in series to a second switch tube of the bridgeless PFC circuit, and is used for sampling current passing through a second switch tube to acquire a second sampled signal V2. One end of the third sampling unit is connected to a ground terminal of the bridgeless PFC circuit, the other end is connected to a negative output terminal of a PFC capacitor of the bridgeless PFC circuit, and is used for sampling current passing through a boost diode of the bridgeless PFC circuit to acquire a third sampled signal V3. |
申请公布号 |
WO2013167016(A2) |
申请公布日期 |
2013.11.14 |
申请号 |
WO2013CN78450 |
申请日期 |
2013.06.28 |
申请人 |
ZTE CORPORATION |
发明人 |
PU, XIFENG;ZHENG, DACHENG;DAI, BINCHUAN;LI, DAN;WAN, ZHENGHAI;LI, JUNKAI |
分类号 |
G01R19/00;H02M1/42 |
主分类号 |
G01R19/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|