HEATKEYS

Circuit Breakers & power management systems designed by E-T-A for the protection of electrical equipment

Open Circuit Design: Home Page

Electronic Ciruits portal of free electronic circuits, schematics, designs, or diagrams & other resources for engineers, inventors & students.

PCB Heaven! Electronic theory, schematic circuits and PIC tutorials

We are a leading supplier of flexible circuit design, heaters and rigid flex circuits, have experience in a wide variety of industries and will take on any technical challenge to bring your design to reality.

Engineering high quality marine electrical components for safety, reliability and performance

Switching-mode power supply circuit design problems and solutions with tutorials and resources and tips. A website about power supply design for power supply designers.

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Texas Instruments (TI) is a global analog and digital semiconductor IC design and manufacturing company.