Voltech AT5600 User Manual page 91

C H A P T E R 7 – T E S T S
LVOC Low Voltage
Open Circuit
LSB Inductance with
Bias Current
(Series Circuit)
LPB Inductance with
Bias Current
(Parallel Circuit)
OUT Output to User
Port
R2 DC Resistance
Match
L2 Inductance
Match
C2 Capacitance
Match
GBAL General
Longitudinal
Balance
LBAL Longitudinal
Balance
ILOS Insertion Loss
RESP Frequency
Response
RLOS Return Loss
Z Impedance
ZB Impedance +
bias
ANGL Impedance
Phase Angle
PHAS Interwinding
Phase Test
AT5600 User Manual 98-119 issue 14
A N D T E S T C O N D I T I O N S
All transformers
Transformers for use
in applications where
passing significant
(DC) bias current is
part of the normal
operation
Transformers for use
in applications where
passing significant
(DC) bias current is
part of the normal
operation
SMPS, audio &
telecom
SMPS, audio &
telecom transformers
SMPS, audio &
telecom transformers
Audio & telecom
transformers
Audio & telecom
transformers
Audio & telecom
transformers
Audio & telecom
transformers
Audio & telecom
transformers
Audio & telecom
transformers
Audio & telecom
transformers
Audio & telecom
transformers
Audio & telecom
transformers
All other windings
One winding
One winding
All windings
All windings
All Windings
Selected Windings
Selected Windings
Selected Windings
Selected Windings
Selected Windings
Selected Windings
Selected Windings
Selected Windings
Selected Windings
Correct secondary
turns. Correct
phasing
Correct number of
turns. Right grade of
core material Core
correctly assembled
Correct number of
turns. Right grade of
core material Core
correctly assembled
Allows the AT to
perform external
switching as part of
the test program.
Checks matching
between windings
Checks matching
between windings
Checks correct
winding position on
bobbin
Checks common
mode rejection ratio
Checks common
mode rejection ratio
Checks losses within
the transformer
Checks losses over a
range of frequencies
Checks losses
returned by a
transformer
Checks impedance at
a given frequency
Checks impedance at
a given frequency
Finds phase shift
between Voltage and
Current on a winding.
Measures phase shift
between a pair of
windings
Page 91