himag 2016 brochure

CONTENTS

Contact Us 38

Size 140 MAX 1kWSize 195 MAX 1.5kWSize 225 MAX 2kWSize 230 MAX 2kWSize 350 MAX 6.5kWSize 500 MAX 10kWSize 510 MAX 10kWSize 540 MAX 15kWSize 1080 MAX 30kWSize 1200 MAX 50kWSize 2400 MAX 80kWSize 3600 MAX 120kW

8/910/1112/1314/1516/1718/1920/2122/2324/2526/2728/2930/31

Custom DesignThermal Handling/Cooling

TerminationsConventional Parts

Other Products

Market SectorsCompany Profile

Planar TechnologyProduct Range Overview

32/3334353637

2/345

6/7

3

IndustrialIndustrial

TractionTraction AviationAviation

CommunicationCommunicationMedicalMedicalDefenceDefence

MARKET SECTORS 2

AutomotiveAutomotive

PLANAR TECHNOLOGY54COMPANY PROFILE

Planar Transformers

Advantages

Planar Transformers are suited to high frequency switching applications, with a typical switching frequency of 20kHz – 5MHz.The fundamental difference between planar transformers and traditional wire-wound transformers is the use of flat copper conductors, resulting in higher efficiency due to the ability to interleave windings and to design the conductor for skin effect.

Planar Windings are constructed using flat copper layers (‘lead-frames’) or printed circuit boards (PCBs) to form a laminate style winding construction, which are then sandwiched between small, light-weight planar cores.

The result is a compact, high power density planar transformer that is typically smaller, lighter, and more efficient than its conventional wire-wound equivalent.

Himag Planar possess over two decades of experience in the field of planar transformers with a long history in inverter technology and PCB design. Himag Planar has become the global market leader in the development of planar transformer technology, design and manufacture. We have as a group to date manufactured million’s of planar transformers, including thousands of custom planar transformer designs.

As part of a wider group we are a truly global company with manufacturing & engineering design facilities in Israel, USA and Asia as well as the UK. We manufacture from one off bespoke quick turnaround prototypes through to volume production both in the UK and overseas. Our structure and resources cater for all of our customer requirements.

In the UK we are housed in our own 7000 square foot facility which we are currently updating ensuring we keep pace with increasing production as Planar technology becomes the standard for high frequency electronics.

• High Efficiency (>99%)

• Low profile

• Lightweight (5g per 100W)

• Low Leakage Inductance

• Repeatability (Controlled Parasitics)

• Customised Terminations

• High Efficiency Cooling

• Multiple Topologies

• Multiple Winding Options

• Dimensional Accuracy

• 4kV Isolation, typical

• Reduced EMI

PRODUCT RANGE OVERVIEW76PRODUCT RANGE OVERVIEW

Ampere Turns

Typi

cal A

L (n

H/ t

2 )

1x103

10010 100 1x103 1x104

Inductor ApplicationsTransformers

1kW MAX 3MHz MAX 500V MAX 100A MAX

120A MAX

150A MAX

200A MAX

300A MAX

500A MAX

300A MAX

750A MAX

1000A MAX

1200A MAX

1200A MAX

1200A MAX

500V MAX

600V MAX

500V MAX

750V MAX

1000V MAX

1000V MAX

1000V MAX

1000V MAX

1000V MAX

1000V MAX

1000V MAX

3MHz MAX

3MHz MAX

3MHz MAX

3MHz MAX

2MHz MAX

2MHz MAX

1MHz MAX

1MHz MAX

500kHz MAX

500kHz MAX

500kHz MAX

8/9

1.5kW MAX 10/11

2kW MAX 12/13

2kW MAX 14/15

6.5kW MAX 16/17

10kW MAX 18/19

10kW MAX 20/21

15kW MAX 22/23

30kW MAX 24/25

50kW MAX 26/27

80kW MAX 28/29

120kW MAX 30/31

Size: 140Size: 195Size: 225Size: 230Size: 350Size: 500Size: 510Size: 540Size: 1080Size: 1200Size: 2400Size: 3600

Input/OutputVoltage

OutputCurrent

Frequency Page No.Output Power

≥ ≥ ≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

≥

Size: 140

Size: 195

Size: 225

Size: 230

Size: 350

Size: 500

Size: 510

Size: 540

Size: 1080

Size: 1200

Size: 2400

Size: 3600

140195

225

230350 500 540 1200

24003600510 1080

SIZE 1401kW Max Power Transformer Parameters Transformer Specification Example Dimension Diagram

Topologies

TRANSFORMERS & INDUCTORS TRANSFORMERS & INDUCTORS

Total Output Power 240WTopology Full BridgePSU Output DC Voltage & Current 12Vdc @ 20Adc (max)Primary Inductance 9μH Primary Winding Current 20A rmsSecondary Winding Current 20A rmsSwitching Frequency 125kHzMinimum Bus Voltage 9VMaximum Bus Voltage

Turns Ratio16V

Primary to Secondary 1:2(+2 bias on primary & secondary sides)

Cooling HeatsinkAmbient Temperature -20oC to +80oCInsulation Test Voltage Primary to Secondary 1000Vrms

Secondary to CoreStandard

500VrmsEN60950

Primary to Core 500Vrms

TransformerTechnical Information

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core

Switching Frequencies

2.5kVrms

20kHz-3MHz

2.5kVrms

4kVrms

98ER32 (Size 140) 2197-01

Bias

Primary

Bias

Secondary

1

2

3

4 5

6

7

8

9

32,1

40

12

ER32 (Size 140) 2197-01

Bias

Primary

Bias

Secondary

1

2

3

4 5

6

7

8

9

32,1

40

12

ER32 (Size 140) 2197-01

Bias

Primary

Bias

Secondary

1

2

3

4 5

6

7

8

9

32,1

40

12

Inductor ApplicationSIZE 140

Ampere Turns10 100

1001x103

1x103

1x104

Typi

cal A

L (n

H/ t

2 )

• Full Bridge • Half Bridge • Boost • Resonant • Push Pull • Buck • Flyback

Bias

Primary Secondary

Bias

40

25%

Power Weight Dielectric Isolation

Voltage Current

ER32

Core

1kW 40G 2.5kV 500V 50A

3212

SIZE 1951.5kW Max Power Transformer Parameters Dimension Diagram

Topologies


Total Output PowerTopology

830WCurrent Doubler

PSU Output DC Voltage & Current 29.5Vdc @ 28Adc (max)Primary InductancePrimary Winding Current 40A rmsSecondary Winding Current 13.3A rmsSwitching Frequency 250kHzNominal Bus Voltage 22VTurns RatioPrimary to SecondaryCooling Coldplate @ 100oC

1:3

Ambient TemperatureInsulation Test Voltage Primary to Secondary 2000Vrms Primary to Core 2000Vrms Secondary to Core 2000VrmsStandard EN60950

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-3MHz

2.5kVrms

4kVrms

1110

E38 (Size 195) 80039

60

3816

E38 (Size 195) 80039

60

3816

SIZE 195

Ampere Turns10 100

1001x103

1x103

1x104

Primary Secondary

4.8μH 25%


Inductor Application TransformerTechnical Information

Transformer Specification Example

60

3816

Power Weight Voltage CurrentCore

E38 1.5kW 60G 2.5kV 500V 75A

Dielectric Isolation

Typi

cal A

L (n

H/ t

2 )

SIZE 2252kW Max Power Transformer Parameters Dimension Diagram

Topologies


Total Output Power 2kWTopology Full Bridge ZVTPSU Output DC Voltage and Current 255Vdc @ 8Adc, 420Vdc @ 4.75AdcPrimary Inductance 1.0mH 25% Primary Winding Current 7.7A rms (max)Secondary Winding Current 5.5A rms (max)Switching Frequency 250kHzMax Duty Cycle 0.41Minimum Bus Voltage 375VMaximum Bus Voltage 480VTurns Ratio Primary to Secondary 10:14Total Transformer Losses 14W (max)Cooling Liquid Cooled BaseplateAmbient Temperature -40oC to +105oCInsulation Test Voltage Primary to Secondary 2700Vdc

Secondary to CoreStandard

2700VdcEN60950

Primary to Core 2700Vdc

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-3MHz

2.5kVrms

4kVrms

1312 ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

SIZE 225

Ampere Turns10 100

1001x103

1x103

1x104

Primary Secondary



Transformer Specification Example45

4116


ER41 2kW 100G 2.5kV 600V 75A


Typi

cal A

L (n

H/ t

2 )

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6


Topologies


Total Output Power 1kWTopology Half BridgePSU Output DC Voltage & Current 400V @ 2.5 maxPrimary InductancePrimary Winding Current 87A rmsSecondary Winding Current 2.4A rmsSwitching Frequency 100kHzMinimum Bus Voltage 24VMaximum Bus VoltageTurns Ratio

48V

Primary to Secondary 1:36Cooling HeatsinkInsulation Test Voltage Primary to Secondary 4000Vrms

Secondary to Core 2500Vrms Primary to Core 2500Vrms

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-3MHz

2.5kVrms

4kVrms

1514E43 (Size 230) 80171

73

4324

1 6

4

SecondaryPrimary

2

E43 (Size 230) 80171

73

4324

1 6

4

SecondaryPrimary

2

E43 (Size 230) 80171

73

4324

1 6

4

SecondaryPrimary

2

SIZE 230

Ampere Turns10 100

1001x103

1x103

1x104

Primary Secondary

9.7μH 25% (provisional)




4324


E43 2kW 100G 2.5kV 500V 75A


Typi

cal A

L (n

H/ t

2 )

E43 (Size 230) 80171

73

4324

1 6

4

SecondaryPrimary

2

SIZE 3506.5kW Max Power Transformer Parameters Dimension Diagram

Topologies


Total Output Power 1.8kWTopology Full BridgePSU Output DC Voltage & Current 225Vdc @ 8Adc (max)Primary InductancePrimary Winding Current 4.7A rmsSecondary Winding Current 7.7A rmsSwitching Frequency 80kHzMinimum Bus Voltage 390VMaximumm Bus VoltageTurns Ratio Primary to Secondary 17:11Cooling

Standard

Heatsink + Air

EN60950

Ambient Temperature 70oC MaxInsulation Test Voltage Primary to Secondary 4000Vrms


Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-3MHz

2.5kVrms

4kVrms

1716ER51 (size 350) 2379-01

80

5125

1 5

4

SecondaryPrimary

3

ER51 (size 350) 2379-01

80

5125

1 5

4

SecondaryPrimary

3

ER51 (size 350) 2379-01

80

5125

1 5

4

SecondaryPrimary

3

SIZE 350

Ampere Turns10 100

1001x103

1x103

1x104

• Full Bridge • Half Bridge • Boost • Resonant • Push Pull • Buck

Primary Secondary

3.8mH 25% (provisional)



5125


ER51 6.5kW 220G 4kV 1000V 200A


Typi

cal A

L (n

H/ t

2 )

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6


Topologies


Total Output Power 7.6kWTopology Full Bridge ZVSPSU Output DC Voltage & Current 58.2V / 130AMaximum Duty CyclePrimary inductance

0.9

Primary Winding Current 22.5A rmsSecondary Winding Current 92A rms (each half)Switching Frequency 100kHzMinimum Bus Voltage 420VMaximum Bus Voltage 622VTurns Ratio Primary to Secondary 12:(2+2)Cooling Forced Cooling 2m/sAmbient Temperature -10oC to 40oCInsulation Working Voltage

Standard

600V rms

EN60950

4000Vrms

2000Vrms2000Vrms

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-3MHz

2.5kVrms

4kVrms

1918E64 (size 500) 132202

105

6530

1 6

4

SecondaryPrimary

3

E64 (size 500) 132202

105

6530

1 6

4

SecondaryPrimary

3

E64 (size 500) 132202

105

6530

1 6

4

SecondaryPrimary

3

SIZE 500

Ampere Turns10 100

1001x103

1x103

1x104


Primary Secondary

Insulation Test Voltage Primary to Secondary

Secondary to Core Primary to Core

1.3mH 25%



6430


E64 10kW 400G 4kV 1000V 500A


Typi

cal A

L (n

H/ t

2 )

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6


Topologies


Total Output PowerTopologyPSU Output DC Voltage & CurrentPrimary InductancePrimary Winding CurrentSecondary Winding CurrentSwitching FrequencyMinimum Bus VoltageMaximum Bus VoltageTurns Ratio Primary to SecondaryCooling

Standard

Ambient TemperatureInsulation Test Voltage Primary to Secondary Primary to Core Secondary to Core

6kWPhase Shift Full Bridge200V @ 30A dc

344A rms29A rms38kHz18V32V

1:12Heatsink at 70oC

EN60950

4000Vrms2500Vrms2500Vrms

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-3MHz

2.5kVrms

4kVrms

2120ER64 (Size 500) 80169

1 6

4

SecondaryPrimary

3

87

6530

ER64 (Size 500) 80169

1 6

4

SecondaryPrimary

3

87

6530

ER64 (Size 500) 80169

1 6

4

SecondaryPrimary

3

87

6530

SIZE 510

Ampere Turns10 100

1001x103

1x103

1x104


Primary Secondary

17.5μH 25% (provisional)



6430


ER64 10kW 400G 4kV 1000V 300A


Typi

cal A

L (n

H/ t

2 )

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6


Topologies


Total Output Power 12kWTopology Full Bridge LLCPSU Output DC Voltage & Current 48V @ 250A maxPrimary Inductance 5mH 25%Primary Winding Current 29A rmsSecondary Winding Current 230A rmsSwitching Frequency 50kHzMinimum Bus Voltage 380Maximum Bus VoltageTurns Ratio Primary to Secondary 23:3

420

Cooling HeatsinkAmbient Temperature -40oC to +60oCInsulation Test Voltage Primary to Secondary 1000Vrms Primary to Secondary 1000Vrms Secondary to CoreStandard

1000VrmsEN60950

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-1MHz

2.5kVrms

4kVrms

2322

175

102

44

1 6

4

SecondaryPrimary

3

175

102

44

1 6

4

SecondaryPrimary

3

175

102

44

1 6

4

SecondaryPrimary

3

SIZE 540

Ampere Turns10 100

1001x103

1x103

1x104


Primary Secondary



102

44


E102 15kW 1KG 4kV 1000V 750A


Typi

cal A

L (n

H/ t

2 )

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6


Topologies


Total Output Power 18kWTopology Full BridgePSU Output DC Voltage & Current 300V @ 240dc PeakMagnetizing Inductance 5.1mH Primary Winding Current 87A rmsSwitching Frequency 50kHzBus Voltage 500-700VDuty (pulsed power) 0.33Turns RatioPrimary to Secondary Cooling Clamped to Cold Plate Est. 40 Degrees C

16:8

Insulation Test VoltagePrimary to Secondary

Standard

4000Vrms

EN60950

Primary to Core 2500Vrms Secondary to Core 2500Vrms

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-1MHz

2.5kVrms

4kVrms

2524

175

102

44

1 6

4

SecondaryPrimary

3

175

102

44

1 6

4

SecondaryPrimary

3

175

102

44

1 6

4

SecondaryPrimary

3

SIZE 1080

Ampere Turns10 100

1001x103

1x103

1x104


Primary Secondary

10%



102

44

Power Weight Voltage Current

E102Double

Core

30kW 1.5KG 4kV 1000V 1000A


Typi

cal A

L (n

H/ t

2 )

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6


Topologies


Total Output Power 25kWTopology Full BridgePSU Output DC Voltage 200-400VPrimary InductancePrimary Winding Current 45.2A rmsSecondary Winding Current 62A rmsSwitching Frequency 20kHzMinimum Bus Voltage 584VMaximum Bus Voltage 800VTurns Ratio Primary to Secondary 36:18Cooling

Standard

Clamp + Heatsink + air flow

EN60950

Insulation Test Voltage Primary to Secondary 4000Vrms Primary to Core 2500Vrms Secondary to Core 2500Vrms

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

20kHz-500kHz

2.5kVrms

4kVrms

2726E153 (Size 1200) 80156

153

62

220

1 6

4

SecondaryPrimary

3

E153 (Size 1200) 80156

153

62

220

1 6

4

SecondaryPrimary

3

E153 (Size 1200) 80156

153

62

220

1 6

4

SecondaryPrimary

3

SIZE 1200

Ampere Turns10 100

1001x103

1x103

1x104


Primary Secondary

12.3mH 25%



153

62


E153 50kW 3KG 4kV 1000V 1200A


Typi

cal A

L (n

H/ t

2 )

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6


Topologies


Total Output Power 45kWTopology Full BridgePrimary Voltage 600VPrimary Inductance 2.9mH

Secondary Winding CurrentPrimary Winding Current

75A75A

Switching Frequency 30kHzTurns Ratio Primary to Secondary 10: (5+5 / 5+5)Cooling Natural Air CooledAmbient Temperature

Standard

65oC Ambient

EN60950

Insulation Test Voltage Primary to Secondary 4000Vrms Primary to Core 4000Vrms Secondary to Core 4000Vrms

Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

2.5kVrms

4kVrms

2928

E153 Double (size 2000) 80175

280

153

62

1

34

5

6

7

8

Primary Secondary

E153 Double (size 2000) 80175

280

153

62

1

34

5

6

7

8

Primary Secondary

E153 Double (size 2000) 80175

280

153

62

1

34

5

6

7

8

Primary Secondary

SIZE 2400

Ampere Turns10 100

1001x103

1x103

1x104


SecondaryPrimary



280

153

62


E153Double 80kW 4KG 4kV 1000V 1200A


Typi

cal A

L (n

H/ t

2 )

20kHz-500kHz

E153 Double (size 2000) 80175

280

153

62

1

34

5

6

7

8

Primary Secondary

E153 Double (size 2000) 80175

280

153

62

1

34

5

6

7

8

Primary Secondary



Total Output Power 100kWTopology Full BridgePSU Output DC Voltage & Current 500Vdc @ 200Adc (max)Primary Inductance 800 - 900μH

Leakage Inductance <1μH

Primary Winding Current 133A rmsSecondary Winding Current 200A rmsSwitching Frequency 20kHzMinimum Bus Voltage 750VMaximum Bus VoltageTurns Ratio

820V

Primary to Secondary 12:8Cooling

Standard

Heatshunts / Coldplate

EN60950

Insulation Test Voltage Primary to Secondary


Isolation Voltage:

Primary - Secondary

Primary - Core

Secondary - Core


2.5kVrms

2.5kVrms

4kVrms

3130

E153 Triple (Size 3600) 80049

310

153

62

1 6

4

SecondaryPrimary

3

E153 Triple (Size 3600) 80049

310

153

62

1 6

4

SecondaryPrimary

3

E153 Triple (Size 3600) 80049

310

153

62

1 6

4

SecondaryPrimary

3

SIZE 3600

Ampere Turns10 100

1001x103

1x103

1x104


4000Vrms



310

153

62

Power Weight Voltage Current

E153Triple

Core

120kW 13KG 4kV 1000V 1200A


Typi

cal A

L (n

H/ t

2 )

20kHz-500kHzSecondaryPrimary

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

ER41 (Size 225) 2044

1

Primary Secondary

3 4

5

6

CUSTOM DESIGNCUSTOM DESIGN 3332

150kW Planar Transformer

High Voltage Isolation Transformer

Power Converter

Medical Planar TransformerHimag Planar specialises in high power planar transformers.The great challenge is thermal performance of these high powerparts. One option Himag employs to overcome this is byusing multiple units hence increasing the thermal conduction area. This example is a single transformer assembly using two planar transformers that are connected in series & parallel to achieve 150kW.

Specification:• Total output power - 150kW (2 x 75kW)• High Efficiency >99%• Leakage <0.01%• Frequency - 20kHz• Mechanical dimensions: Length - 349 mm, Width - 375mm, Height - 72.5 mm• Weight - 22.6kg

This is a fully integrated planar magnetic, high voltage DCDC Converter for a telecoms application. This is a resonant based design operating at a switching frequency of 20kHz.

The converter runs from a low voltage DC Bus and is capable of delivering a high voltage output of up to 4kV @ 1A DC. The main power transformer and output inductors are embedded within a single multilayer PCB. All other discrete components are mounted as either SMT or PTH devices on the same multilayer layer PCB:

• Rectification Diodes (SMT) • Filter Capacitors (PTH) • Feedback components (PTH) • Protection Devices (PTH)

High voltage isolation can present a challenge to any insulation system. Himag Planar overcame this (in this case 20kV) by a hybrid approach with the primary windings using a HV Insulated wire and the secondary planar leadframes. This solution improves the transformer size and performance. The use of multiple cores allows for higher power ratings due to the increased effective area of the ferrite.

A Planar Transformer with a continuous power rating of 6.5kW with short periods that require 12kW. The transformer is designed with 2 pairs of E64 ferrite cores and is mounted on a baseplate with an aluminium heatsink clamp. The transformer has a turn’s ratio of 11:2+2:17.

This transformer is in the power supply for a medical CTI scanner and it is housed in the rotating part of the equipment that exerts pressures of 6G. The terminals for the primary winding and two separate secondary windings are made using Litz wires that are connected prior to potting of the part. The potting is not only important to the thermal capabilities of the transformer but also plays an important role in the structural integrity of the part.

TERMINATIONSTHERMAL HANDLING / COOLING

Just Some Of Our TerminationsHimag Planar offers a wide range of connection/termination options for its transformers. Some examples of existing designs are shown below. We are happy to provide any custom termination arrangement.

Multi-Pin PCBMounting

Horizontal PCBMounting

Vertical PCBMounting

BoltedConnections

CustomisedExtendedLead-Frames

Bolted and SolderedConnections

Power SolderedLeads

Fly Leads

Vertical PCB to PCB

3534

The following table provides typical Thermal Impedance for some of the cooling options for a size 500 Transformer

Single Sided Cooling

Two Sided Cooling

Three Sided Cooling

The magnetic component is mounted direct to a cold plate or heatsink providing a single cooling surface for both the core and windings.

As well as being mounted on a heatsink or cold plate the top surface can also be cooled by a clamping bar providing a thermal path from the top surface of the component to the heatsink or cold plate via the mounting parts.

Achieved by a formed clamp bracket providing a thermal path from the top and sides of the part down to the cold plate or heatsink.

Natural Cooling(Hot Spot – Air)

1.7 ºC/W 1.3 ºC/W 1.6 ºC/W 0.8 ºC/W

Blowing Air 3ms/sec(Hot Spot-Air)

One Side Heatsink(Hot Spot - Heatsink)

Two Side Heatsink(Hot Spot-Heatsink)

In operation Transformers and Inductors generate significant heat, and this heat has to be dealt with. It is much more efficient to cool these parts by conduction rather than convection (radiation). The low profile flat nature of the Planar Transformer provides a relatively large core surface area ideal for conduction cooling. The flat planar windings of the component can also utilise conduction cooling by the placing aluminium blocks between the windings and the same cooling surface of the core.

The following cooling methods are used by Himag in the majority of designs:-The Water Cooled plate is a very efficient heatsink method as the temperature of the cooling surface can be maintained at a constant temperature by the use of a coolant.

Finned Heatsinks & Forced Air: provide a conduction and radiation method for single, double, and three sided cooling with the same construction methods as the water cooled plate. The fins of the heatsink increase the surface area of the cooling medium, and further improvement is achieved by applying forced air over the component, with the fins significantly improving the thermal radiation process.The use of thermal grease, high thermal conductive tapes, and adhesives can be employed to further enhance the thermal performance of the component in all of the above cooling methods.Potting the component with a high thermally conductive resin material can further improve thermal performance. The ingress of the potting material into the component assuring all surfaces of all materials have a thermal path to the cooling surface. The additional mass of the component as a result of the potting material will also improve the thermal process by absorption of the heat.

OTHER PRODUCTSCONVENTIONAL PARTS

A World Of Transformers Under One Roof

Power Supply & Adaptors

OEM & Turnkey Projects

On top of Planar Transformers, Himag also offer a wide range of Wire Wound Transformers,Choke Coils & Line Filters.

3736

38CONTACT US

Himag Planar Magnetics LtdUnit A The Aquarius Centre,

Edison Close, Waterwells Business Park,Quedgeley,

Gloucestershire, GL2 2FNUnited Kingdom

Tel: +44 (0) 1452 722 351

Fax: +44 (0) 1452 881 360

Email: [email protected]

www.himag.co.uk

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himag 2016 brochure

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