| 发明名称 | Charge pump circuit | ||
| 摘要 | A bipolar output charge pump circuit 100 having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN) and a second pair of output nodes (VQ, VM), and two pairs of flying capacitor nodes (CF1A, CF1 B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first bipolar output voltage at the first pair of output nodes (VP, VN) and a second bipolar output voltage at the second pair of bipolar output nodes (VQ, VM). | ||
| 申请公布号 | US8890604(B2) | 申请公布日期 | 2014.11.18 |
| 申请号 | US201213403450 | 申请日期 | 2012.02.23 |
| 申请人 | Wolfson Microelectronics Ltd. | 发明人 | Lesso John Paul;Frith Peter John;Pennock John Laurence |
| 分类号 | G05F1/10;H03F3/181;H02M3/07;H02M1/00 | 主分类号 | G05F1/10 |
| 代理机构 | Dickstein Shapiro LLP | 代理人 | Dickstein Shapiro LLP |
| 主权项 | 1. A charge pump circuit, comprising: an input node (VV) and a reference node (VG) for connection to an input voltage; a first pair of output nodes (VP,VN) and a second pair of output nodes (VQ,VM); two pairs of flying capacitor nodes (CF1A, CF1B; CF2A,CF2B); a network of switching paths for interconnecting said nodes; and a controller operable to control the network of switching paths when in use with two flying capacitors (CF1,CF2) connected to the two pairs of flying capacitor nodes, to provide a first bipolar output voltage at the first pair of output nodes (VP,VN) and a second bipolar output voltage at the second pair of bipolar output nodes (VQ,VM). | ||
| 地址 | Edinburgh GB | ||