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50/60Hz TRANSFORMERS HIGH FREQUENCY TRANSFORMERS INDUCTORS OTHER INDUCTIVE COMPONENTS
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for LCD backlights, Lan...

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itacoil transformers
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Resonant transformers  
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Measurement transformers
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NEW PRODUCTS  
new products, transformers, inductors, coils
 
Integrated Resonant Transformers
resonant transformer
Custom - 30...800W
Switching power supplies, what are the LLC series resonant converters?
This category contains the following standard series:
SRL series resonant transformers - with PFC stage
SRL series resonant transformers - without PFC stage
  Resonant power supply - see technical news


resonant transformer resonant transformer resonant transformer resonant transformer resonant transformer resonant transformer

Features

Designed for best performances on high efficiency LLC resonant power supply
Suited for converters based on chips ST Microelectronics, Fairchild, Texas Instruments, ON Semiconductor Motorola, NXP Philips, Power Integrations, Infineon, International Rectifier and many others. (see some models)
Integrated resonant inductor by winding disposal
Operating frequency 40KHz to 300KHz, higher frequency on request
High creepage/clearance/DTI for reinforced insulation
RoHS compliant
 
The design of a LLC resonant converter with high efficiency target (both energetic and economic) should consider the constraints related to the physical parameters of the transformer which is supposed to use.
Thanks to our proprietary software we are able to provide a quick and efficient support, working with electronic designers, in defining the "resonant tank" parameters in order to minimize the losses (including MOSFET's conduction losses) to obtain the best efficiency in each of our formats.
 
Thanks to this software we are also able to support you in the PFC Inductors design (go to Inductors for active PFC).
For a consistent design of the resonant converter and its magnetic components we recommend to send us the necessary information using the following form:
 
  "Resonant Tank request form" EXCEL form PDF form
 
 
For applications where the supply characteristics are not changeable, please use the following form (*):
 
  "Resonant Transformers request form" (*) EXCEL form PDF form
(*) This solution do not guarantee the best results.
   
  To request a quote or a sample, please send completed form to contatto@itacoilmail.it or, by FAX, to +39.02.95745133



Sizes table

Max
Continuous
Power
A B H X Y L D Layout Dielectric
Strength
Creepage &
Clearance
70W 26.5 26.5 20.6 5.0 20.0 2.5 0.8 Draw. 1 2.5 ... 5.0KV 4...8mm
150W 27.3 28.6 22.4 5.0 20.4 2.5 0.7 Draw. 1 4.0 ... 5.0KV >6mm
200W 36.1 36.6 25.6 5.5 28.0 3.0 0.8 Draw. 2 4.0 ... 5.0KV 5...7mm
270W 43.2 44.5 31.5 5.8 36.0 3.0 0.8 Draw. 4 5.0KV >10mm
350W 53.0 62.3 26.3 5.0 52.0 3.5 1.0 Draw. 3 5.0KV >6mm
700W 51.6 51.7 39.2 7.0 41.6 3.0 1.0 Draw. 4 5.0KV >12mm


Drawing 1 Drawing 2
Resonant transformer 1

Resonant transformer 2
pin 1 missing for reference

Drawing 3 Drawing 4
Resonant transformer 3


pin 1 missing for reference
Resonant transformer 4
pin 1 missing for reference




These transformers are useful with every chip for resonant converters, these are some of the most common:
ST Microelectronics Fairchild NXP Philips Texas Insruments Power Integrations ON Semiconductors International Rectifier Infineon
L6598
L6599
L6585
L6699
FAN7631
FAN7621
FAN7621S
FAN7621B
FSFR1700XS
FSFR1800XS
FSFR2100
FSFR2100XS
FSFR1600XS
FSFR1800HS
FSFR1700HS
FLS1600XS
FLS1700XS
FLS1800XS
FLS2100XS
TEA1610
TEA1611
TEA1612
TEA1713
UCC25600
UC2861
UC2863
UC2864
UC2865
UC2866
UC2876
HiperPLC PLC810PG
Hiper LCS700HG
Hiper LCS701HG
Hiper LCS702HG
Hiper LCS703HG
Hiper LCS705HG
Hiper LCS708HG
NCP1395x
NCP1396x
NCP1397
NCP1910
MC34067
MC33067
IRS27951
IRS27952
IRS2153
ICE1HS01G
ICE2HS01G


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