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GS-EVB-HB-0650603B-HD

Half Bridge Bipolar Drive Switch Board

Technical Manual

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Please refer to the Evaluation Board/Kit Important Notice on page # 16

GS-EVB-HB-0650603B-HD

Half Bridge Bipolar Drive Switch Board

Technical Manual

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Summary of Contents for GS-EVB-HB-0650603B-HD

Page 1: ...________________________________________________ GS EVB HB 0650603B HD TM Rev 210712 2021 GaN Systems Inc www gansystems com 1 Please refer to the Evaluation Board Kit Important Notice on page 16 GS E...

Page 2: ...EVEN BRIEF CONTACT DURING OPERATION MAY RESULT IN SEVERE INJURY OR DEATH Please sure that appropriate safety procedures are followed This evaluation kit is designed for engineering evaluation in a con...

Page 3: ...o the Evaluation Board Kit Important Notice on page 16 Contents 1 Overview 5 1 1 Introduction 5 1 2 Quick Start Guide 5 2 Technical Description 6 2 1 Gate Pull Up and Pull Down Resistors 6 2 2 Enable...

Page 4: ...1011 L12C Wired AND enable 6 Figure 3 HEY1011 L12C Start up sequence 7 Figure 4 Measurements points 7 Figure 5 Bi polar gate drive schematic 8 Figure 6 Typical Driver output at 100kHz 9 Figure 7 Doubl...

Page 5: ...50603B HD can be used to perform double pulse tests or to interface the half bridge to an existing LC power section both as shown below The isolated HEY1011 L12C driver does not require secondary side...

Page 6: ...such as UVLO this pin is actively pulled low internally by the driver During normal operation the pin is released by the driver and must be pulled high with an external pull high resistor This functio...

Page 7: ...olar gate drive arrangement as shown in Figure 5 below When measuring VGS both gate drives are measured relative to the source of their associated GaN FET Therefore the off state voltage will be negat...

Page 8: ...hat the high side FET is also conducting this can result in a potentially destructive shoot through event The GS EVB HB 0650603B HD EVB uses a bipolar gate drive arrangement which is useful to mitigat...

Page 9: ...driver IC2 output wrt VHV CH2 Low side driver input CH1 Low side driver IC2 output wrt VHV Low side driver output Typical Turn on Propagation Delay Typical Turn off Propagation Delay Figure 6 Typical...

Page 10: ...nd of period 1 is given by _1 During period 2 the inductor current will naturally decay The duration of period 2 should not be too long that inductor current deviates significantly from the desired te...

Page 11: ...HV CH2 Grn Switch Node 500MHz Probe CH4 Blu Inductor Current 1A V CH1 Red Low side output wrt VHV CH2 Grn Switch Node 500MHz Probe CH4 Blu Inductor Current 1A V DPT Overview DPT Hard switching turn of...

Page 12: ...________________________________________________________________________________________________ GS EVB HB 0650603B HD TM Rev 210712 2021 GaN Systems Inc www gansystems com 12 Please refer to the Eval...

Page 13: ..._____________ GS EVB HB 0650603B HD TM Rev 210712 2021 GaN Systems Inc www gansystems com 13 Please refer to the Evaluation Board Kit Important Notice on page 16 5 Layout Figure 12 GS EVB HB 0650603B...

Page 14: ...TU 3 C3 C4 CAP CER 75pF 50V NP0 S0402 75pF 2 KEMET C0402C750J5GACTU 4 C6 C13 CAP CER 1uF 25V X5R S0402 1uF 2 MURATA GRM155R61E105KA12 D 3 CONN1 HEADER 6 WAY 2 54mm 6WAY 2P54 1 WURTH 61300611121 6 CR1...

Page 15: ...ty information as is and with all faults and disclaims any type of warranties fitness for a particular purpose or non infringement of 3rd party intellectual property rights Any examples described here...

Page 16: ...the board kit may be returned within 30 days from the date of delivery for a full refund THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRAN...

Page 17: ...components are not designed authorized or warranted for use in lifesaving life sustaining military aircraft or space applications nor in products or systems where failure or malfunction may result in...

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