Invention Grant
- Patent Title: Low variation current multiplier
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Application No.: US13559275Application Date: 2012-07-26
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Publication No.: US08626092B2Publication Date: 2014-01-07
- Inventor: Hui Liu , Duane A. Green , David Anthony Sawatzky
- Applicant: Hui Liu , Duane A. Green , David Anthony Sawatzky
- Applicant Address: US MA Woburn
- Assignee: Skyworks Solutions, Inc.
- Current Assignee: Skyworks Solutions, Inc.
- Current Assignee Address: US MA Woburn
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H03G3/10 ; G05F1/10 ; H03G3/30

Abstract:
Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.
Public/Granted literature
- US20130029620A1 LOW VARIATION CURRENT MULTIPLIER Public/Granted day:2013-01-31
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