Magnetic-field-to-digital converter using PWM and TDC techniques
Journal
IEE Proceedings: Circuits, Devices and Systems
Journal Volume
153
Journal Issue
3
Pages
247-252
Date Issued
2006-06
Date
2006-06
Author(s)
Abstract
A high resolution magnetic-field-to-digital converter (MDC) is presented. It is composed
of a magnetic-field-to-pulse width converter (MPC), a cyclic pulse-shrinking time-to-digital
converter (TDC) and a polarity detector. This prototype circuit has been fabricated in a 0.5mm
CMOS DPDM process. With a clock rate of 16.6 kHz, the power consumption is 42.5mW under
5V supply voltage. The equivalent resolution less than 16mT can be achieved within the range of
710mT. After off-line calibration, the remaining offset is 0.017mT and its gain error is smaller
than 0.4%.
Subjects
dynamic stability
shallow arch
energy barrier
end motion
Other Subjects
Electric potential; Energy utilization; Error analysis; Gain measurement; Magnetic fields; Networks (circuits); Magnetic field-to-digital converters; Magnetic-field-to-pulse width converter (MPC); Supply voltage; Time-to-digital converter (TDC); Pulse width modulation
Publisher
Taipei:National Taiwan University Dept Mech Engn
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
559.pdf
Size
637.3 KB
Format
Adobe PDF
Checksum
(MD5):593f6f7a4bf904a2848c9312d6da84fe