Invention Grant
US08207773B2 Pulse-width modulation (PWM) with independently adjustable duty cycle and frequency using two adjustable delays
有权
脉冲宽度调制（PWM），具有独立可调的占空比和频率，使用两个可调延迟
- Patent Title: Pulse-width modulation (PWM) with independently adjustable duty cycle and frequency using two adjustable delays
- Patent Title (中): 脉冲宽度调制（PWM），具有独立可调的占空比和频率，使用两个可调延迟
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Application No.: US12863699Application Date: 2009-07-17
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Publication No.: US08207773B2Publication Date: 2012-06-26
- Inventor: Andrew Harvey Crofts
- Applicant: Andrew Harvey Crofts
- Applicant Address: US CA Milpitas
- Assignee: Linear Technology Corporation
- Current Assignee: Linear Technology Corporation
- Current Assignee Address: US CA Milpitas
- Agency: McDermott Will & Emery LLP
- International Application: PCT/US2009/051012 WO 20090717
- International Announcement: WO2010/082954 WO 20100722
- Main IPC: H03K3/017
- IPC: H03K3/017 ; H03K5/04 ; H03K7/08
Abstract:
A pulse width modulation circuit may generate an adjustable output signal that periodically transitions between a first and a second state with an adjustable duty cycle. A first pulse generator circuit may be configured to generate a first pulse signal that periodically transitions at an adjustable delay with respect to a periodic reference signal. A second pulse generator circuit may be configured to generate a second pulse signal that periodically transitions at an adjustable delay with respect to the periodic reference signal. A logic circuit may be configured to generate the adjustable output signal based on both the first and the second pulse signals.
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