Invention Grant
- Patent Title: Controlling switching noise of an inductively loaded thyristor
- Patent Title (中): 控制感应加载晶闸管的开关噪声
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Application No.: US12044369Application Date: 2008-03-07
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Publication No.: US07986540B2Publication Date: 2011-07-26
- Inventor: Terry Heckenbach
- Applicant: Terry Heckenbach
- Applicant Address: US MI Holland
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Holland
- Agency: Foley & Lardner LLP
- Main IPC: H02M7/155
- IPC: H02M7/155 ; G05F1/70

Abstract:
Systems and/or methods that facilitate controlling a rate of voltage change across an inductively loaded thyristor when switched are presented. Based on a received control signal indicating a thyristor is to be switched, a control component controls the rate of voltage change across a thyristor associated with an inductive load when the thyristor is switched from a first state to another state to facilitate controlling noise emissions during switching based in part on a predefined noise criteria, without using a filter. A capacitor component is connected to the inductive load and thyristor. The control component employs a voltage-controlled current sink comprising a transistor to facilitate discharging voltage from the capacitor component until the capacitor component is discharged to a predefined voltage level, where at or near such point a gate component can send a signal to the thyristor gate to switch the thyristor to the desired state.
Public/Granted literature
- US20090224744A1 CONTROLLING SWITCHING NOISE OF AN INDUCTIVELY LOADED THYRISTOR Public/Granted day:2009-09-10
Information query
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