Invention Grant
US08179110B2 Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation
有权
具有连续导通模式（“CCM”）和不连续导通模式（“DCM”）操作的可调节恒流源
- Patent Title: Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation
- Patent Title (中): 具有连续导通模式（“CCM”）和不连续导通模式（“DCM”）操作的可调节恒流源
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Application No.: US12242009Application Date: 2008-09-30
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Publication No.: US08179110B2Publication Date: 2012-05-15
- Inventor: John Laurence Melanson
- Applicant: John Laurence Melanson
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic Inc.
- Current Assignee: Cirrus Logic Inc.
- Current Assignee Address: US TX Austin
- Agent Steven Lin, Esq.
- Main IPC: G05F1/40
- IPC: G05F1/40
Abstract:
A converter system and method of operating a converter system are disclosed. The converter system comprises a converter power stage that can operate in a Discontinuous Conduction Mode (DCM) in a range of output currents and a Continuous Conduction Mode (CCM) in another range of output currents. The converter power stage includes at least an inductor with an inductor value and a control switch. The converter power stage provides an average current. A current controller is coupled to the converter power stage. When the converter power stage operates in DCM, the converter power stage provides the average current and the current controller is configured to measure the inductor value of the inductor. Furthermore, the current controller can also be configured to measure an input-to-output conversion ratio from the converter power stage.
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