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This FAQs refers to The Motor Driver ICs described in the “Data Sheets” and “Application Notes” at the High Voltage Monolithic IC section.
Hitachi High Voltage Inverter ICs contain 6 IGBTs, configured in a 3 Phase Motor Bridge with level shift and a Charge Pump Circuit to drive the IGBT Top Arm up to 400VDC. Some Inverters contain 3 Phase Stator Distribution Logic, synchronized to rotor position by Hall ICs and drive Brushless DC (BLDC) motors directly: these are called BLDC Motor Bridges. Other Inverters have 6 inputs which the motor designer may use to drive AC Induction motors. Additional family members include Gate Drivers to drive larger motors using an external 3 phase motor bridge of IGBT or MOSFET devices. A key feature of all Hitachi Inverters is the ability to work directly at rectified line voltage in 110 and 220VAC power systems. However, in keeping with the system requirement of motor manufactures, all supply voltages between 10 and 400VDC are handled by this Inverter family.
For abbreviation purposes, this FAQ document refers to both: Motor Bridge and Gate Drivers as Inverters.
FAQs are classified under one of four headings shown below. Answers to each section are displayed by clicking the headings below.