Invention Grant
- Patent Title: Charge pump circuit
- Patent Title (中): 电荷泵电路
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Application No.: US13336835Application Date: 2011-12-23
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Publication No.: US09136755B2Publication Date: 2015-09-15
- Inventor: John Paul Lesso , Peter John Frith , John Laurence Pennock
- Applicant: John Paul Lesso , Peter John Frith , John Laurence Pennock
- Applicant Address: GB Edinburgh
- Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee Address: GB Edinburgh
- Agency: Dickstein Shapiro LLP
- Priority: GB1021801.4 20101223
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F3/02 ; H02M3/07
Abstract:
A bipolar output charge pump circuit 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), two pairs of flying capacitor nodes (CF1A, CF1B; 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 mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, wherein at least the first mode corresponds to a bipolar output voltage of +/−3VV, +/−VV/5 or +/−VV/6.
Public/Granted literature
- US20120170770A1 CHARGE PUMP CIRCUIT Public/Granted day:2012-07-05
Information query
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