Qspeed Semiconductor

About Qspeed Semiconductor

Qspeed Semiconductor, formerly known as Lovoltech, Inc., designs and manufactures silicon power semiconductor devices. Founded in 1999 and headquartered in Santa Clara, California, the company was a fabless semiconductor firm focused on creating high-efficiency power management solutions for the computing and industrial markets. In December 2010, Qspeed Semiconductor was acquired by Power Integrations Inc.

The company's core products are highly-efficient power diodes, including rectifiers, designed for applications such as AC-to-DC power supplies, inverters, and motor controls. Qspeed diodes are known for having the lowest reverse recovery charge (QRR) of any silicon diode, a characteristic that enhances efficiency, minimizes electromagnetic interference (EMI), and can eliminate the need for snubber circuits. Their product portfolio includes the Q-Series, X-Series, and H-Series families of rectifiers. The technology provides a soft reverse-recovery current, which reduces EMI and peak reverse-voltage stress.

Qspeed's products are engineered to provide a cost-effective alternative to Silicon Carbide (SiC) diodes, offering comparable performance in efficiency and voltage derating. The company serves a global market, with sales offices and distribution channels across the Americas, Europe, Asia, and other regions, marketing its products through a network of distributors. Their solutions are targeted at power supply manufacturers and are used in data centers, telecom and networking equipment, and industrial power supplies.