Invention Grant
- Patent Title: Cold-crank event management
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Application No.: US14166891Application Date: 2014-01-29
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Publication No.: US09644593B2Publication Date: 2017-05-09
- Inventor: Adriano Marques Pereira , Sunny Gupta , Andre Luis Vilas Boas , Pedro Barbosa Zanetta , Ivan Carlos Ribeiro Nascimento , Carl Culshaw
- Applicant: Freescale Semiconductor, Inc.
- Applicant Address: US TX Austin
- Assignee: NXP USA, INC.
- Current Assignee: NXP USA, INC.
- Current Assignee Address: US TX Austin
- Main IPC: F02N11/00
- IPC: F02N11/00 ; F02N11/08

Abstract:
Systems and methods for managing cold-crank events. In an embodiment, a method may include detecting a cold-crank event and setting a switching circuit to a non-conductive state, where the switching circuit is configured to couple a first regulator to a memory circuit such that setting the switching circuit to the non-conductive state de-couples the memory circuit from the first regulator. The method may also include setting the switching circuit to a conductive state in current limitation mode during a recovery period following the cold-crank event to re-couple the memory circuit to the first regulator. In another embodiment, an electronic device include a switching circuit, a first regulator coupled to a first terminal of the switching circuit, a second regulator coupled to a second terminal of the switching circuit, a logic circuit coupled to the switching circuit, and a memory circuit coupled to the second terminal of the switching circuit.
Public/Granted literature
- US20150211470A1 COLD-CRANK EVENT MANAGEMENT Public/Granted day:2015-07-30
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