| 1
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R
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DC resistance
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pin 1-2, limits <110 mOhms
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To check the auxiliary winding resistance is below a maximum. Also acts as a check of correct wire gauge and good termination.
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| 2
|
R
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DC resistance
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pin 3-4, limits <450 mOhms
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To check the primary winding resistance is below a maximum. Also acts as a check of correct wire gauge and good termination.
|
| 3
|
R
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DC resistance
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pin 9-8, limits <100 mOhms
|
To check the first secondary winding resistance is below a maximum. Also acts as a check of correct wire gauge and good termination.
|
| 4
|
R
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DC resistance
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pin 7-10, limits <100 mOhms
|
To check the second secondary winding resistance is below a maximum. Also acts as a check of correct wire gauge and good termination.
|
| 5
|
LS
|
Series Inductance
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Pin 3-4, 100mV, 100 Khz, nominal 127 mH +/- 10% (as per published spec)
|
To check the correct number of turns and correct operation of the core material
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| 6
|
LL
|
Leakage Inductance
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Pins 3 -4 Hi, Pins 8-9 Low, 100mV, 100 kHz , check below 2.3 uH as per spec.
|
To check leakage is below specified limit as a validation of correct placement and operation of windings.
|
| 7
|
TR
|
Turns Ratio
|
Energize pins 3-4, 100 mV 100 kHz, check Turns ratio and phase 3-4:2-1 to be 1:0.21 +/- 3%
|
To check correct ratio of windings
|
| 8
|
TR
|
Turns Ratio
|
Energize pins 3-4, 100mv 100kHz, check Turns ratio and phase 3-4:7-10 to be 1:0.29 +/- 3%
|
To check correct ratio of windings
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| 9
|
TR
|
Turns Ratio
|
Energize pins 3-4, 100mv 100kHz, check Turns ratio and phase 3-4:8-9 to be 1:0.29 +/- 3%
|
To check correct ratio of windings
|
| 10
|
HPAC
|
AC Hi-Pot
|
1.5kV AC, 1 second, Pins 1,2,3,4 High, Pins 7,8,9,10 LO. Check <5mA current
|
To check isolation as per datasheet.
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AT5600 Run time 1.35 sec
|
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(AT3600 Run time 3.81 sec)
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