Invention Grant
- Patent Title: Technique for duty cycle shift in hard disk drive write system
- Patent Title (中): 硬盘驱动器写入系统的占空比转换技术
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Application No.: US12843669Application Date: 2010-07-26
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Publication No.: US08014098B1Publication Date: 2011-09-06
- Inventor: Jeremy Robert Kuehlwein , Craig Matthew Brannon
- Applicant: Jeremy Robert Kuehlwein , Craig Matthew Brannon
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Dawn V. Stephens; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: G11B5/02
- IPC: G11B5/02
Abstract:
A circuit for providing a write current having a programmably adjustable duty cycle in a hard disk drive write channel has a differential pair gain circuit for receiving a data input signal and generating a differential output voltage to provide a differential write signal for generating the write current. First and second programmable current sources are connected to the differential pair gain circuit to create a programmable voltage offset of the differential output voltage to programmably adjust the duty cycle of the write current.
Information query
IPC分类:
