Founded in 1999, MicroPower Direct is a leading worldwide provider of low cost, high performance power products. MPD was formed by a group of

industry professionals with well over 100 years experience in senior management, engineering & QA positions. The company's continuing steady growth is driven by a firm commitment to delivering innovative, high quality power products at the lowest possible prices.

Company Background

● Presale Product Selection

● Application Help & Analysis

● Failure Analysis & Corrective Action

● International Safety & Production Standards

Expert Technical Assistance

Technical Assistance

IGBT & SiCMOSFET circuits are complex multi-component electronic assemblies. To ensure that your design goals are met and the full potential of an application is achieved; the proper selection and use of all components is critical. We can help. Our staff has deep experience in the design and application of power components in a variety of applications. Call us today with any questions regarding:

IGBT Technical Literature

Application Notes An in depth look at IGBT’s including their development, advantages & disadvantages, and usage.

Product Manuals In depth information on the use and performance of the IGD1205W and IGD1208W IGBT drivers.

Product Datasheets In depth specifications on the connection and performance of a full line of IGBT drivers and isolated DC/DC converters.

Literature, available free on the MPD website, includes:

BJT’s, MOSFET’s & IGBT’s

+

Bipolar Junction Transistor

=

Metal Oxide Field Effect Transistor Insulated Gate Bipolar Transistor

Not really, but sort of. IGBT’s combine many of the characteristics of BJT’s and MOSFET’s. They have a simpler, voltage controlled gate drive (like the MOSFET) and the high current capability of the BJT. This combination has made the IGBT the preferred device for high power, high speed applications. A quick comparison of the three devices is:

BJT MOSFET IGBT

Input Drive Current Voltage Voltage

Drive Power High Low Low

Voltage Rating High High Very High

Current Rating High Low High

Switching Speed Slow High Moderate See the MPD App Note

“Driving IGBT’s” Available on our website

MPD IGBT Products

The IG120-20 is designed to be used in the driver circuits for Silicon Carbide (SiC) MOSFETs.

IGBT DC/DC’s

SiC DC/DC

The IGxxx Series includes DC/DC’s from 1W to 4.8W designed to be used in the driver circuits IGBTs.

Hybrid IGBT Drivers

The IGD962, IGD1205 and IGD1208 are hybrid integrated IGBT drivers. They include much of the circuitry needed to provide gate drive and control to IGBT circuits

Model No

Input (VDC)

Output 1 (VDC)

Output 2 (VDC)

IG120-12 12 15 -8.7

IG120-12W 12 15 -8.0

IG120-15 15 15 -8.7

IG136-15 15 17 -8.7

IG120-24 24 15 -8.7

IG275-12E 12 15 -8.0

IG275-15E 15 15 -8.0

IG275-24E 24 15 -8.0

Model No

Input (VDC)

Output 1 (VDC)

Output 2 (VDC)

IG120-20 15 VDC 20 VDC -4.0 VDC

IG220-12 12 VDC 20 VDC -4.0 VDC

IG220-15 15 VDC 18 VDC -3.0 VDC

IG220-24 24 VDC 20 VDC -4.0 VDC

Model No

Gate Drive (VDC)

I Out (A Pk)

Isolation (VAC)

IGD962-5A +15/-8.5 ±5 3,750

IGD962-8A +15/-10 ±8 3,750

IGD1205W-12 +16/-8.5 ±5 3,750

IGD1205W-15 +16/-8.5 ±5 3,750

IGD1208W-15 +16/-8.5 ±8 3,750

* Product tables are included at the end of this presentation

Typical IGBT Connection

This figure illustrates a simplified IGBT connection. The MPD products used are: Any number of MPD DC/DC converters can be used to provide isolated power to the driver circuits The MSR7805-05WUP is a low cost switching regulator. In this case it converts the 15V bus into a regulated 5V used for the input signal pull-up. The IG275-15E converts the input 15V into +15V & -8.0V. These outputs set up the positive/minus gate bias required for high and low side switching. The IG275-15E also provides power isolation for the gate drive. All models are specified for 3 kVAC I/O isolation. The optocoupler provides isolation for the control signal.

This figure illustrates an IGBT connection using an industry standard hybrid driver. The MPD products used are:

The IGD962 is a hybrid integrated, and isolated N-channel IGBT driver. It is designed to provide the I/O isolation, high speed, drive voltage stability and fault protection required to control most MOS gated power devices.

The MSR7805-05WUP is a low cost switching regulator. In this case it converts the 12V bus into a regulated 5V used for the fault signal pull-up and to power the internal circuits of the IGD962.

The IG275-12E converts the input 12V into +15V & -8.0V. These outputs set up the positive/minus gate bias required for high and low side switching.

The IG275-12E also provides power isolation for the gate drive. All models are specified for 3.0 kVAC I/O isolation. The optocoupler provides isolation for the control signal.

Typical IGBT Connection

This figure illustrates an IGBT connection using an industry standard hybrid driver. The MPD products used are:

The IGD1205W is a hybrid integrated, and isolated N-channel IGBT driver. It includes an internal DC/DC to power the driver circuits. Like the IGD962 it is designed to provide the I/O isolation, high speed, drive voltage stability and fault protection required to control most MOS gated power devices.

The MSR7805-15WUP is a low cost switching regulator. In this case it converts the 24V bus into a regulated 15V used to provide power to the internal DC/DC converter.

The MSR7805-05WUP is from the same family of low cost switching regulators. It converts the 15V input into +5V. This is used as a pull up for the input signal (at pin 3) and the fault signal output.

The internal DC/DC provides power iso-lation for the gate drive. The optocoupler provides isolation for the control signal.

Typical IGBT Connection

This figure illustrates a connection to a driver circuit for a Silicon Carbide (SiC) MOSFET. These MOSFETs are often used in high voltage, very high frequency applications. Again, MPD can help simplify the driver design as shown here. The MPD products used are:

Again, any number of MPD DC/DC converters can be used to provide isolated power to the driver circuits

The MSR7805-05WUP is a low cost switching regulator. In this case it converts the 15V bus into a regulated 5V used for the input signal pull-up.

The IG220-24 converts the input 24V into +20V & -4V. These outputs set up the positive/minus gate bias required for high and low side switching.

The IG220-24 also provides power isolation for the gate drive. All models are specified for 3.5 kVAC I/O iso-lation. The optocoupler provides iso-lation for the control signal.

Typical SIC Connection

IGBT Applications

A steady increase in the performance capabilities and reliability of IGBT’s have led to it’s adoption in a number of application areas. Listed below are some of the typical market segments where IGBT’s are being used.

And many, many more.

● AC Motor Controls

● Solar Inverters

● Power Generation/Transmission (Converters & Inverters)

● Uninterruptible Power Supplies

● Railway Traction Systems (Motor Drive & Inverters)

● Electric Vehicle (Motor Drive, Charging System & Ignition)

● Appliance Motor Drives (Compressors, Induction Heaters, etc)

● High Frequency Welders

● Induction Heating Cookers

● Industrial Welders (PWM Circuits)

UPS Applications

3-Level Inverter Topology: NPC

3-Level Inverter Topology: TNPC

Standard UPS systems for home/industrial use can range from 1 kW to 1 MW. A key component of these systems is the IGBT inverter. Due to its lower switching losses (improved system efficiency), the 3 level topologies illustrated at right are typically used. In some designs SiC devices may be used, but this increases cost. MPD drivers can used to control the gate drive for these IGBT’s. Our DC/DC’s will simplify the set up the low & high switching rails.

Vehicle Applications

Motor Control System Block Diagram

The growing number of hybrid and electric cars and commercial trucks & buses has resulted in a high demand for advanced control circuits as illustrated at right. IGBT’s are used for their ability to switch high voltage levels (>1 kV) efficiently at high speeds. These IGBT based controls would be used in systems that include direct fuel injection, motor drive inverters (for the main motor drive and steering, air conditioning systems etc), charging inverters and more. MPD has already achieved some success in selling into this market.

Motor Drive Applications

IGBT’s are used extensively in the control circuits for electric motors. A simplified 4-quadrant control circuit is shown at left, consisting of a bridge rectifier, filter and a DC inverter in an H-bridge configuration. Used with motors ranging from high voltage , industrial induction motors to low voltage, high precision stepper motors; a motor controller sequentially switches the IGBTs to achieve the correct speed, position & direction of the motor shaft. MPD DC/DC’s and drivers are ideal for use in the motor control gate driver circuits.

Solar Energy Applications

3-Level Inverter Topology: NPC

Block Diagram of a Solar Power System with MPP Tracker

IGBT based inverters are used in the power extraction circuits for alternative energy systems. MPD products are ideal for installations ranging from small systems (to power signage, etc) to complex, high power systems used with Solar Farms.

Wind Turbine Applications

Wind turbine systems, like the solar power systems, use IGBT’s extensively. Illustrated here is a 4-quadrant power converter. Doubly Fed induction systems are also popular. Again, MPD DC/DC’s and drivers are ideal for use in the turbine gate driver circuits.

Wind Turbine Suppliers Company Location

GE US

Vestas Denmark

Emerson Germany

Siemens Germany

Gamsea Spain

Goldwind China

Nordex Germany

Sulzon Group India

SiC Based Systems

High speed Silicon Carbide (SiC) MOSFETs offer many of the same benefits as IGBT semiconductors. At one time it was predicted that they would take over the high speed, high power semiconductor market, but higher component costs (primarily) have held them back. That being said, they now represent 15 to 17% of the market. They are used in high voltage applications for railway systems (such as traction inverters), wind turbines, solar inverters & appliances. Along with our extensive IGBT product line, MPD offers a number of DC/DC converters designed just for SiC based applications. They provide the asynchronous outputs (+20V, -4V) needed to operate. As application areas such as PV power and electric vehicles move toward higher voltages, the market for SiC circuits will continue to grow.

IG220-xx Series

NEW SiC driver DC/DC converter family is now available!

Model No Power

Input Voltage

Isolation

+ Output Voltage - Output Voltage Package

Type Nominal Range VDC mA VDC mA

IG120-12 1.00W 12 VDC ±3.3% 3 kVAC +15 +80 -8.7 -40 7-Pin SIP

IG120-12W 1.50W 12 VDC ±25% 3 kVAC +15 +100 -8.0 -80 7-Pin SIP

IG120-15 1.00W 15 VDC ±10% 3 kVAC +15 +80 -8.7 -40 7-Pin SIP

IG100-09 1.00W 15 VDC ±10% 3 kVAC +9.0 +110 --- --- 7-Pin SIP

IG100-09D 1.00W 15 VDC ±10% 3 kVAC +9.0 +55 -9.0 -55 7-Pin SIP

IG136-15 1.70W 15 VDC ±10% 3 kVAC +17 +80 -8.7 -40 7-Pin SIP

IG275-12E 2.76W 12 VDC ±5% 3 kVAC +15 +120 -8.0 -120 7-Pin SIP

IG275-15E 2.76W 15 VDC ±5% 3 kVAC +15 +120 -8.0 -120 7-Pin SIP

IG275-24E 2.76W 24 VDC ±5% 3 kVAC +15 +120 -8.0 -120 7-Pin SIP

IG480-12RW 4.80W 12 VDC 2:1 3 kVAC +15 +200 -9.0 -200 MiniDIP

IG480-24RW 4.80W 24 VDC 2:1 3 kVAC +15 +200 -9.0 -200 MiniDIP

MPD IGBT/SiC Products Pg 1

IGBT DC/DC’s

Model No Power

Input Voltage

Isolation

+ Output Voltage - Output Voltage Package

Type Nominal Range VDC mA VDC mA

IG120-20 2.4W 15 VDC ±10% 3.5 kVAC +20 +100 -4.0 -100 7-Pin SIP

IG220-12 2.4W 12 VDC ±10% 3.5 kVAC +20 +100 -4.0 -100 7-Pin SIP

IG220-15 2.1W 15 VDC ±10% 3.5 kVAC +18 +100 -3.0 -100 7-Pin SIP

IG220-24 2.4W 24 VDC ±10% 3.5 kVAC +20 +100 -4.0 -100 7-Pin SIP

MPD IGBT/SiC Products Pg 2

SiC DC/DC’s

Model No Gate Voltage CMR Drive

Channels Isolation

Peak I Out

Package Type

IGD962-5A +15 VDC -5 VDC 30 kV/µS One 3.75 kVAC ±5A SIP

IGD962-8A +15 VDC -10 VDC 30 kV/µS One 3.75 kVAC ±8A SIP

IGD1205W-12 +16 VDC -8.5 VDC 30 kV/µS One 3.75 kVAC ±5A SIP

IGD1205W-15 +16 VDC -8.5 VDC 30 kV/µS One 3.75 kVAC ±5A SIP

IGD1208W-15 +16 VDC -8.5 VDC 30 kV/µS One 3.75 kVAC ±8A SIP

IGBT Drivers

* IGD120xW Drivers include an internal DC/DC to set up the gate drive. Just a single 15V source is required for full operation.

Why Should Customers Use MPD?

Because We Have The:

● PRODUCT A wide product line, including many models designed specifically for high speed/high power applications

● SUPPORT The technical expertise to support the design-in process and the logistics expertise to support production requirements large and small

● Pricing We strive to have the lowest pricing for the best product. It is not always possible to be the lowest, but we are always competitive.

MPD works hard to forge long term relationships with customers, often at the expense of short-term gains. “Partnership” & “open communication” are more often overused than actually followed in the sales field. At MPD, one of our major market strengths is customer support. Give us a call; let us surprise you.

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