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MGJ3andMGJ6Presentationversion2c.PDF

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Frank Warnes

The MGJ3 and MGJ6 power supplies from Murata are designed to provide gate drive power for IGBTs, SiCs and MOSFETs. They offer advantages over alternative solutions like bootstrap circuits or transformer coupling by providing galvanic isolation up to 5.2kV, immunity to high dV/dt, and protection from overcurrent and short circuits. Testing at Nottingham University validated their performance for applications requiring high power switching of up to 3W for the MGJ3 and 6W for the MGJ6. The surface mount units can be used in various topologies like half bridges, full bridges, or three-phase bridges to support different circuit needs.

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www.murata-ps.com 29 April 2015 MGJ3 and MGJ6 Power Supplies for IGBT, SIC and Mosfet Gate Drives Presented by Frank Warnes
www.murata-ps.com PRINCIPLE OF GATE DRIVER POWER SUPPLY +15V -10V DC-DC Powering an IGBT Drive circuit
www.murata-ps.com ALTERNATIVES 1. Bootstrap - Low cost but unipolar and no isolation 3. Standard Isolated Product – Not designed for high dV/dT 2. Transformer Coupled – Relatively low cost but no desaturation protection
www.murata-ps.com UNIQUE CONCEPT Key Parameters • Output Power: 3W (MGJ3)/6W (MGJ6) • Temperature range: -40C to +105C • Three input variants: 4.5v to 9V, 9V to 18V and 18V to 36V • Surface Mount footprint open frame construction • Isolation to UL60950 + 5.2kVDC 1 sec (7mm clearance) • External On-Off/Synchronization control (Frequency dithering possible) • Immune to High dV/dt (80kV/us) no opto feedback and low Capacitance • Output configuration is suitable for IGBT, SIC and Mosfet • Uses an automotive qualified pwm controller • Overcurrent and Short circuit Protection (Hiccup) • Planar Transformer for consistency, reliability and high isolation • Four Patents applied for • System tested by Nottingham University and characterised for partial discharge performance
www.murata-ps.com OUTPUT CONFIGURATIONS One output configuration for all three types of Power Switch
www.murata-ps.com TESTING IN TARGET SYSTEMS High Power Test Facilities X-ray Tomography Ranked 7th in the UK for Engineering and Technology. Has long been at the forefront of research and teaching in the area of Power Electronics and Drives.
www.murata-ps.com DIFFERENT TOPOLOGIES Half Bridge using 2 Units e.g. 2 x MGJ3 or 2 x MGJ6
www.murata-ps.com DIFFERENT TOPOLOGIES Full Bridge using 3 Units e.g. 2 x MGJ3 + 1 MGJ6 Full Bridge using 4 Units e.g. 4 x MGJ3 or 4 x MGJ6
www.murata-ps.com DIFFERENT TOPOLOGIES 3Phase Bridge using 6 Units e.g. 6 x MGJ3 or 6 x MGJ6 3Phase Bridge using 4 Units e.g. 3 x MGJ3 + 1 MGJ6
www.murata-ps.com AVAILABLE RESOURCES Test Report from Nottingham University IGBT DC-DC Selector Tool IGBT DC-DC White Paper by Paul Lee MGJ3 and MGJ6 Product Page - http://www.murata-ps.com/en/news/new-products/2573 Microsoft Excel Worksheet Adobe Acrobat Document Adobe Acrobat Document Adobe Acrobat Document MGJ series Application Note by Paul Lee

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MGJ3andMGJ6Presentationversion2c.PDF

  • 1. www.murata-ps.com 29 April 2015 MGJ3 and MGJ6 Power Supplies for IGBT, SIC and Mosfet Gate Drives Presented by Frank Warnes
  • 2. www.murata-ps.com PRINCIPLE OF GATE DRIVER POWER SUPPLY +15V -10V DC-DC Powering an IGBT Drive circuit
  • 3. www.murata-ps.com ALTERNATIVES 1. Bootstrap - Low cost but unipolar and no isolation 3. Standard Isolated Product – Not designed for high dV/dT 2. Transformer Coupled – Relatively low cost but no desaturation protection
  • 4. www.murata-ps.com UNIQUE CONCEPT Key Parameters • Output Power: 3W (MGJ3)/6W (MGJ6) • Temperature range: -40C to +105C • Three input variants: 4.5v to 9V, 9V to 18V and 18V to 36V • Surface Mount footprint open frame construction • Isolation to UL60950 + 5.2kVDC 1 sec (7mm clearance) • External On-Off/Synchronization control (Frequency dithering possible) • Immune to High dV/dt (80kV/us) no opto feedback and low Capacitance • Output configuration is suitable for IGBT, SIC and Mosfet • Uses an automotive qualified pwm controller • Overcurrent and Short circuit Protection (Hiccup) • Planar Transformer for consistency, reliability and high isolation • Four Patents applied for • System tested by Nottingham University and characterised for partial discharge performance
  • 5. www.murata-ps.com OUTPUT CONFIGURATIONS One output configuration for all three types of Power Switch
  • 6. www.murata-ps.com TESTING IN TARGET SYSTEMS High Power Test Facilities X-ray Tomography Ranked 7th in the UK for Engineering and Technology. Has long been at the forefront of research and teaching in the area of Power Electronics and Drives.
  • 7. www.murata-ps.com DIFFERENT TOPOLOGIES Half Bridge using 2 Units e.g. 2 x MGJ3 or 2 x MGJ6
  • 8. www.murata-ps.com DIFFERENT TOPOLOGIES Full Bridge using 3 Units e.g. 2 x MGJ3 + 1 MGJ6 Full Bridge using 4 Units e.g. 4 x MGJ3 or 4 x MGJ6
  • 9. www.murata-ps.com DIFFERENT TOPOLOGIES 3Phase Bridge using 6 Units e.g. 6 x MGJ3 or 6 x MGJ6 3Phase Bridge using 4 Units e.g. 3 x MGJ3 + 1 MGJ6
  • 10. www.murata-ps.com AVAILABLE RESOURCES Test Report from Nottingham University IGBT DC-DC Selector Tool IGBT DC-DC White Paper by Paul Lee MGJ3 and MGJ6 Product Page - http://www.murata-ps.com/en/news/new-products/2573 Microsoft Excel Worksheet Adobe Acrobat Document Adobe Acrobat Document Adobe Acrobat Document MGJ series Application Note by Paul Lee