DocumentCode
3557411
Title
A method for overvoltage protection of a motor driver IC
Author
Trafton, Fredrick ; Ziemer, Kevin
Author_Institution
Storage Products Group, Texas Instruments Inc., Dallas, TX, USA
fYear
2005
fDate
23-26 May 2005
Firstpage
123
Lastpage
126
Abstract
This paper describes a circuit technique that allows semiconductor power devices to be safely used in an IC whose worst-case voltage requirements exceed the breakdown voltages of the power devices. The supply voltage is sensed and the circuit is placed into a non-operational but safe mode of operation (Turtle Mode™). Device data is shown for a hard disk drive servo IC implementing this technique.
Keywords
disc drives; driver circuits; hard discs; overvoltage protection; power integrated circuits; power semiconductor devices; semiconductor device breakdown; breakdown voltages; circuit technique; hard disk drive servo IC; motor driver IC; overvoltage protection; safe mode operation; semiconductor power devices; worst-case voltage requirements; Clamps; Costs; Hard disks; Induction motors; Power supplies; Power system protection; Scanning probe microscopy; Servomechanisms; Servomotors; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Power Semiconductor Devices and ICs, 2005. Proceedings. ISPSD '05. The 17th International Symposium on
Print_ISBN
0-7803-8890-9
Type
conf
DOI
10.1109/ISPSD.2005.1487966
Filename
1487966
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