Charge pump having ramp rate control
A charge pump (30) includes a first counter (18) and a pump stage (20). The first counter (18) has a control input for receiving a control signal, and an output for providing a first count value. The first count value is incremented in response to the control signal being a first logic state and the...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
11.01.2017
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Subjects | |
Online Access | Get full text |
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Summary: | A charge pump (30) includes a first counter (18) and a pump stage (20). The first counter (18) has a control input for receiving a control signal, and an output for providing a first count value. The first count value is incremented in response to the control signal being a first logic state and the first count value is decremented in response to the control signal being a second logic state. The pump stage (20) has a variable capacitor. The variable capacitor has a control input coupled to the output of the first counter (18) for receiving the first count value. The capacitance value of the variable capacitor is changed in response to the first count value changing. The capacitance value is for determining a ramp-up rate of an output voltage (Vout) at an output of the charge pump (30). |
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Bibliography: | Application Number: EP20110176623 |