Invention Grant
- Patent Title: Supply-side voltage regulator
- Patent Title (中): 电源侧电压调节器
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Application No.: US14850947Application Date: 2015-09-10
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Publication No.: US09588540B2Publication Date: 2017-03-07
- Inventor: Zhengxiang Wang , Jie Jin
- Applicant: FREESCALE SEMICONDUCTOR, INC.
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- Agent Charles E. Bergere
- Main IPC: G05F3/26
- IPC: G05F3/26 ; G05F1/618 ; G05F1/613 ; G05F1/571 ; H02M3/07

Abstract:
A voltage regulator generates an output voltage that is a designed voltage level below the supply voltage. A reference voltage generator generates a reference voltage between ground and supply voltages. A voltage divider generates a feedback voltage between the supply and output voltages. An amplifier generates an amplifier output voltage based on a difference between the reference and feedback voltages. A buffer buffers the amplifier output voltage. A pass transistor receives the buffered voltage at its control node to sink an average load current appearing at the output node. A capacitor is connected between the supply and output voltages to provide a peak load current. A load-current-detecting transistor receives the buffered voltage at its control node to sense the load current. A compensation transistor compensates for leakage current. An internal load converts the sensed load current into a voltage control signal applied to the compensation transistor.
Public/Granted literature
- US20160239038A1 SUPPLY-SIDE VOLTAGE REGULATOR Public/Granted day:2016-08-18
Information query
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