Title:
LOW VARIATION CURRENT MULTIPLIER
Document Type and Number:
WIPO Patent Application WO/2013/016575
Kind Code:
A3
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.
Inventors:
LIU HUI (US)
GREEN DUANE A (US)
SAWATZKY DAVID ANTHONY (US)
GREEN DUANE A (US)
SAWATZKY DAVID ANTHONY (US)
Application Number:
PCT/US2012/048399
Publication Date:
March 21, 2013
Filing Date:
July 26, 2012
Export Citation:
Assignee:
SKYWORKS SOLUTIONS INC (US)
LIU HUI (US)
GREEN DUANE A (US)
SAWATZKY DAVID ANTHONY (US)
LIU HUI (US)
GREEN DUANE A (US)
SAWATZKY DAVID ANTHONY (US)
International Classes:
H03F3/24; H03F1/30
Foreign References:
| US4300019A | 1981-11-10 | |||
| US7057440B2 | 2006-06-06 | |||
| US7872372B1 | 2011-01-18 | |||
| US5796243A | 1998-08-18 |
Attorney, Agent or Firm:
CHRISTENSEN, Michael, R. (LLP2040 Main Street,Fourteenth Floo, Irvine CA, US)
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