Q2016RH3

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Thyristors: TRIAC

A thyristor, also known as a silicon-controlled rectifier (SCR), is a type of semiconductor device that functions as a switch. They are used in a wide range of circuit designs and are also used to change the voltage and current levels of signals by rectifying AC power to DC. A TRIAC is one type of thyristor.

Q2016RH3 Application Field

Typical applications for the Q2016RH3 include motor control, such as for variable speed and reverse motor control in ceiling fans and energy saving applications, AC Voltage regulation in welding equipment, lamp dimming in lighting fixtures and magnetron control in microwave ovens. It can also be used for heater control and uninterruptible power supplies.

Q2016RH3 Working Principle

The Q2016RH3 operates in the quadrant mode of operation, which is the most efficient and secure form of operation. The quadrant mode of operation allows full control of the current in both directions, thus enabling the regulator to adjust the current and voltage in the load circuit to the desired levels.

The Q2016RH3 uses two gate terminals to control the power flow between the anode and the cathode. When positive voltage is applied to the gate terminal, the TRIAC will conduct current in one direction, while a negative voltage applied to the same gate terminal will trigger the device to conduct current in the opposite direction. The current can then be controlled by varying the applied gate signal.

The Q2016RH3 has an in-built protection that protects it from over-voltage and over-current, ensuring efficient operation when switched on. This makes it suitable for applications that require reliable and secure operation, such as heater control, magnetron control and turbine control.

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