Short-Circuit Protection Method Based on a Gate Charge Characteristic

Short-circuit protection for an IGBT with detecting the gate voltage and gate charge

This paper proposes a new short-circuit protection method for an IGBT. The proposed method is characterized by detecting not only gate charge but also gate voltage of the IGBT. This results in a shorter protection time, compared to the previous method that detects only the gate charge. A real-time monitoring system using an FPGA, A/D converters, and a D/A converter is used for the proposed prot...

A Universal Soi-based High Temperature Gate Driver Integrated Circuit for Sic Power Switches with On-chip Short Circuit Protection

In recent years, increasing demand for hybrid electric vehicles (HEVs) has generated the need for reliable and low-cost hightemperature electronics which can operate at the high temperatures under the hood of these vehicles. A high-voltage and high temperature gate-driver integrated circuit for SiC FET switches with short circuit protection has been designed and implemented in a 0.8-micron sili...

A New Protection Circuit of IGBT (Insulated Gate Bipolar Transistor) for Short-Circuit Withstanding Capability

Floating Gate Charge-Sharing: a Novel Circuit for Analog Trimming

A floating gate charge-sharing circuit that can be electrically programmed for precise positive and negative voltage changes, and can be implemented in a standard CMOS VLSI process is presented. With the advantage of its longterm charge-retention, the floating gate charge-sharing circuit is suitable for providing a compact, non-volatile and high-precision analog trimming method to trim the offs...

Characteristic Flows on Signed Graphs and Short Circuit Covers

We generalise to signed graphs a classical result of Tutte [Canad. J. Math. 8 (1956), 13–28] stating that every integer flow can be expressed as a sum of characteristic flows of circuits. In our generalisation, the rôle of circuits is taken over by signed circuits of a signed graph which are known to occur in two types – either balanced circuits or pairs of disjoint unbalanced circuits connecte...