applied to a 12v dc motor for transient suppression test … in travel associated with moving the...
TRANSCRIPT
18/2/2005
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X2Y® Applied to a 12V DC Motor for Transient Suppression
Test Results #TR 4001, v2.0
28/2/2005 Test Results #4001, v2.0 – Copyright © X2Y Attenuators, LLC all rights reserved.
Motor Assembly Module
12V DC Motor
The motor in this assembly was inducing substantial line to line transients that required suppression.
38/2/2005 Test Results #4001, v2.0 – Copyright © X2Y Attenuators, LLC all rights reserved.
X2Y® Applied on Motor
Plastic End CapPlastic End Cap
G2G2
(RF noise will pass through (RF noise will pass through plastic)plastic)
G1G1
AA BBSingle X2Y 1812 X7R 420nFcomponent
48/2/2005 Test Results #4001, v2.0 – Copyright © X2Y Attenuators, LLC all rights reserved.
Measured Transient ResultsNote: Difference in transients is attributed to the
variations in travel associated with moving the foot pedal.
Volts
-420-400-380-360-340-320-300-280-260-240-220-200-180-160-140-120-100-80-60-40-20
020406080
100120140160
0.00E+00 2.00E-07 4.00E-07 6.00E-07 8.00E-07 1.00E-06 1.20E-06 1.40E-06 1.60E-06 1.80E-06 2.00E-06
DC Power Supply Production Motor Motor With 1812 0.4 uF X2Y Motor with X2Y RemovedTime (sec)
Motor measured after removing X2Y cap to re-verify transients in motor
Motor measured prior to X2Y cap placement
X2Y result
58/2/2005 Test Results #4001, v2.0 – Copyright © X2Y Attenuators, LLC all rights reserved.
Radiated Emissions 9 kHz – 110 kHz DC Motor With Plastic End Cap
20
25
30
35
40
45
50
55
60
65
70
0 10 20 30 40 50 60 70 80 90 100 110
Frequency MHz
dBuV
Ambient Production DC Motor CW Production DC Motor CCW
DC Motor with 0.44uF X2Y 1812 CW DC Motor with 0.44uF X2Y 1812 CCW
68/2/2005 Test Results #4001, v2.0 – Copyright © X2Y Attenuators, LLC all rights reserved.
Radiated Emissions 110 kHz – 1 GHzDC Motor With Plastic End Cap
20
25
30
35
40
45
50
55
60
65
70
0 100 200 300 400 500 600 700 800 900 1000
Frequency MHz
dBuV
Ambient Production DC Motor CW Production DC Motor CCWDC Motor with 0.44uF X2Y 1812 CW DC Motor with 0.44uF X2Y 1812 CCW
78/2/2005 Test Results #4001, v2.0 – Copyright © X2Y Attenuators, LLC all rights reserved.
Contact Information
Direct inquiries and questions about Test Reports, Application Notes, or X2Y®
products, please contact:
X2Y Attenuators, LLC37554 Hills Tech Dr.
Farmington Hills, MI [email protected]