Patent
Gate driver unit for electrical switching device
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TLDR
In this article, a method for using gate driver units with distributed intelligence to control antiparallel power modules or parallel-connected electrical switching devices like IGBTs is described. But the intelligent gate drive units use the intelligence to balance the currents of the switching devices, even in dynamic switching events.Abstract:
An exemplary apparatus and method for using intelligent gate driver units with distributed intelligence to control antiparallel power modules or parallel-connected electrical switching devices like IGBTs is disclosed. The intelligent gate drive units use the intelligence to balance the currents of the switching devices, even in dynamic switching events. The intelligent gate driver units can use master-slave or daisy chain control structures and instantaneous or time integral differences of the currents of parallel-connected switching devices as control parameters. Instead of balancing the currents, temperature can also be balanced with the intelligent gate driver units.read more
Citations
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Patent
Semiconductor device controllers
Edward Shelton,Mark Snook +1 more
TL;DR: In this article, the authors describe a controller for controlling a power semiconductor switching device into a selected one of a plurality of states, the states including a fully-off state, a saturated-on state, and at least one intermediate state.
Proceedings Article
Decentralized active gate control for current balancing of parallel connected IGBT modules
TL;DR: In this article, a decentralized active gate control for current balancing of parallel connected IGBT modules is presented, which operates distributed to the gate drive units (GDU), the hardware and software configurations are independent of the system design and no restrictions on the number of parallel-connected IGBT devices exist.
Patent
Synchronising parallel power switches
TL;DR: In this article, the authors presented a circuit for controlling switching of parallel coupled power semiconductor switching devices (3) for use in a power converter, in which a plurality of drive modules were used to control the switch command signal at the drive module and the delay circuitry was configured to reduce a time difference between the reference delay and a switching delay.
Patent
Control contact driving system
Nedyalko Slavov,Raffael Schnell +1 more
TL;DR: In this paper, a control contact driving system for a plurality of power semiconductor devices includes a driver unit providing reference currents for pulling-up and/or pushing-down control contacts, and a distributor unit amplifying and distributing the reference currents to the control contacts.
Patent
Method and apparatus for balancing currents
TL;DR: In this article, the authors present a method and an apparatus implementing the method for balancing currents of two or more parallel-connected power semiconductor switches during an on-state of the switches, wherein a control terminal of each switch is driven by a driver unit.
References
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Journal ArticleDOI
Active Gate Control for Current Balancing of Parallel-Connected IGBT Modules in Solid-State Modulators
TL;DR: In this paper, an active gate control of paralleled IGBT modules is explained in detail and adapted to a solid-state modulator, achieving a low-inductance IGBT current measurement, the control unit implementation with a field-programmable gate array and a digital signal processor.
Journal ArticleDOI
Monitoring of paralleled IGBT/diode modules
P. Hofer-Noser,Nicolas Karrer +1 more
TL;DR: In this article, an active gate-controlled current balancing (CB) principle is proposed to monitor the state of a converter with an unlimited number of paralleled insulated gate bipolar transistor (IGBT)/diode modules with individual gate drives.
Patent
Electronic power converter circuit arrangement and method for driving same
Christian Gerster,Reto Schöb +1 more
TL;DR: In this paper, a method and a device for driving a series circuit of power semicondutor switches (2) are specified, where the voltage across each switch of the series circuit is measured as the controlled variable, and this measured voltage is used to vary the switching instants in such a way that the voltage loading during switching is essentially equal for all the switches.
Patent
Method and circuit arrangement for driving semiconductor switches in a series circuit
TL;DR: In this paper, the power losses of the voltage limiting devices are detected by a control equipment for equalizing the voltage distribution across the semiconductor switches, and modified control pulses for each semiconductor switch are generated from a common control pulse on the basis of the detected power losses.
Patent
Gate control circuit for voltage drive switching element
TL;DR: In this article, a gate control circuit for turning on and off an insulated gate semiconductor device having gate, emitter and collector terminals, including a first DC power source coupled to the gate terminal via a first switch, was presented.
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Paralleling intelligent IGBT power modules with active gate-controlled current balancing
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