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US 2021/0203221 A1Published application
Charge pump circuit arrangement
AssigneeAms AG
InventorsNenad LILIC, Robert KAPPEL, Georg RÖHRER
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Abstract
A charge pump circuit arrangement includes a multitude of capacitors of a first and a second group controlled by non-overlapping clock pulses. The capacitors are partly realized in a semiconductor substrate including a deep well doping region and a high voltage doping region surrounded by the deep well doping region. Switches are connected to a pair of capacitors to control the deep well doping regions with signals in phase with the corresponding clock signal.
Claims16
A charge pump circuit arrangement, comprising:
- a multitude of capacitors comprising a first group of capacitors and a second group of capacitors;
- the first group of capacitors coupled to a terminal for a first clock signal and the second group of capacitors coupled to a terminal for a second clock signal, the first and second clock signals having non-overlapping clock pulses;
- switches that connect one of the capacitors to another one of the capacitors;
- each one of the capacitors comprising a semiconductor substrate including a deep well doping region of a first conductivity type and a well doping region of a second conductivity type disposed adjacent to the deep well doping region of the first conductivity type, a portion of the capacitors disposed in the semiconductor substrate;
- the deep well doping regions of the first group of capacitors controlled by a first control signal that is in phase with the first clock signal and the deep well doping regions of the second group of capacitors controlled by a second control signal that is in phase with the second clock signal.
2 more elements
Dependencies are inferred from the claim text.