IGBT
Insulated-gate bipolar transistor
A power transistor combining insulated-gate control with a bipolar collector-emitter conduction structure.
Schematic
Symbols · ISO-GD
Isolated gate driver
Transfers a switching command across an isolation barrier and drives a power-transistor gate circuit.
Schematic · ISO-GD
What it represents
Transfers a switching command across an isolation barrier and drives a power-transistor gate circuit.
On a schematic, identify input/output domain supplies, driver return and fault/desaturation pins and trace the gate connection, interlock and converter protection interfaces. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.
A gate driver adds drive capability and device-specific supervision; it is not merely a general-purpose digital isolator.
The preview is an independently drawn educational functional reference. Add the selected component’s actual power pins, terminal numbers, timing or analogue reference details when producing a construction drawing.
How to read it
- Identify input/output domain supplies, driver return and fault/desaturation pins.
- Trace the gate connection, interlock and converter protection interfaces.
Information to show or reference
- Label input/output domain supplies, driver return and fault/desaturation pins.
- Cross-reference the gate connection, interlock and converter protection interfaces.
- Add the selected device or circuit documentation revision, power/reference connections and project signal convention.
A distinction that matters
A gate driver adds drive capability and device-specific supervision; it is not merely a general-purpose digital isolator.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
UCC21750 — isolated gate-driver interfaces
Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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