Invention Grant
- Patent Title: Voltage discharge circuit having divided discharge current
- Patent Title (中): 放电电路具有分压放电电流
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Application No.: US13052142Application Date: 2011-03-21
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Publication No.: US08553463B1Publication Date: 2013-10-08
- Inventor: Robert Gary Pollachek , Loren Mclaury , Fabiano Fontana
- Applicant: Robert Gary Pollachek , Loren Mclaury , Fabiano Fontana
- Applicant Address: US OR Hillsboro
- Assignee: Lattice Semiconductor Corporation
- Current Assignee: Lattice Semiconductor Corporation
- Current Assignee Address: US OR Hillsboro
- Main IPC: G11C16/06
- IPC: G11C16/06

Abstract:
In one embodiment, a voltage discharge (VD) system has a slow VD subsystem that provides two concurrent discharge current paths to at least begin to discharge both positive and negative voltages: a first path from the positive-voltage node to ground and a second path from the positive-voltage node to the negative-voltage node. In addition to this relatively slow VD subsystem, the VD system can also have a conventional fast VD subsystem that is turned on after the slow VD subsystem has reduced the positive and negative voltages to some degree (e.g., half of each charge removed). Such a VD system can eliminate dangerous overshoot conditions, even when control-signal skew is present.
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