High Voltage Resistor Medical Devices

Power Supplies

Power resistors are essential components in both linear and switching power supply circuits. In linear power supplies, they are used as load resistors, voltage dividers, or current limiters to regulate output voltage and current. In switching power supplies, power resistors are utilized for current sensing, feedback voltage dividers, and snubber circuits to manage switching transients and improve efficiency.

Motor Control

Power resistors are employed in motor control circuits for braking, speed control, and torque regulation. In braking applications, dynamic braking resistors dissipate excess energy generated by decelerating motors, preventing damage to the motor and control circuitry. Speed control circuits utilize power resistors as part of the speed control feedback loop to adjust motor speed according to load demands.

Heating Elements

Power resistors serve as heating elements in various appliances and industrial equipment. In electric heaters, ovens, and furnaces, power resistors convert electrical energy into heat, providing controlled temperature environments for cooking, drying, or industrial processes. High-power wirewound resistors are commonly used for heating applications due to their robust construction and high-temperature tolerance.

LED Lighting

Power resistors are integrated into LED lighting circuits to limit current flow and protect LEDs from overcurrent conditions. In constant current LED drivers, power resistors are used to set the desired output current, ensuring uniform brightness and longevity of the LEDs. They are also employed in LED dimming circuits to adjust brightness levels and create dynamic lighting effects.

Audio Amplifiers

Power resistors play a critical role in audio amplifier circuits for impedance matching, biasing, and output power control. Load resistors in amplifier output stages ensure proper impedance matching between the amplifier and speakers, optimizing power transfer and sound quality. Biasing resistors set the operating point of transistors or tubes, maintaining stable amplifier operation and minimizing distortion.

Electronic Loads

Power resistors are utilized in electronic load testing equipment to simulate real-world loads for power supply testing and characterization. They provide a controllable resistance load, allowing engineers to evaluate the performance and efficiency of power supplies under various operating conditions.

From household appliances to industrial machinery, power resistors are integral components in a diverse range of applications, enabling efficient power management, precise control, and reliable operation. As technology continues to advance, the demand for high-performance power resistors will only continue to grow, driving innovation across industries and powering the devices of tomorrow.

Ohmite specializes in manufacturing power resistors for transportation, industrial, medical, military, aerospace, and energy applications. Reach out today to learn more about how our power resistors can improve your application's design and performance.