K1200E70RP2

Thyristors are components that are used to control current and voltage, regulate power and protect a system from disturbances. The K1200E70RP2 is a robust, integrated thyristor module with high toggle and trigger angles, a low gate trigger current, and wide operating temperature range. It can be used to regulate power supply in applications such as controlling industrial machinery, telecommunication systems, and electrical instrumentation. This article will discuss the application field and working principle of the K1200E70RP2.

The K1200E70RP2 is a thyristor module primarily designed for application in various areas, including high speed switching, resonant DC, PWM rectification, line and motor control, energy conversion, frequency control, voltage regulation and motor control. In motor control, the K1200E70RP2 can be used for speed control, braking, tachogenerator control, and electromagnetic actuator control. It is also used for power factor correction and negative feedback control. Furthermore, the device is ideal for low-voltage operation as it has a maximum reverse blocking voltage (VRRM) of 1250 V and a forward blocking voltage (VF) of 4 V. Additionally, it has a low gate trigger current (1 mA) and a high operation temperature range (-40°C to 150°C).

The function of this module is based on a thyristor which uses a Control Gate terminal to control the current flow. The K1200E70RP2 works in three major stages, namely, the trigger cycle, the blocking phase and the turn-on phase. The trigger cycle begins when a positive pulse is sent to the Control Gate. This causes a small amount of current to begin flowing into the Gate from the Control Gate terminal. The current from the Gate then travels through the body of the module and into the Anode, thereby forming a forward bias between the Anode and the Control Gate. This increases the voltage applied to the Cathode which in turn activates the switching action of the device.

When the pulse current is removed, the Anode will become uncharged and the Gate-to-Anode voltage will revert to its original state. This disables the switching action of the device and it goes into a blocking phase, the thyristor being prevented from undergoing any further switching. The on/off ratio of the device at this point is 0%. This stage then closes when an electric pulse is passed again, allowing the device to enter the turn-on phase.

In turn-on phase, the output voltage of the device will be equal to the breakdown voltage of the thyristor. This is due to the flow of current from the Cathode to the Anode. With an electric pulse applied to the Control Gate, the device then reaches full on-state and hence can remain in this state until the Control Gate voltage is removed. The on/off ratio of the device in this stage is 100%.

The K1200E70RP2 is widely used in various applications due to its robust and integrated thyristor module design. Its high toggle and trigger angles, low gate trigger current and wide operating temperature range provide it with several advantages over conventional thyristors. Moreover, the device can be used in applications such as line and motor control, speed control, braking, tachogenerator control and frequency control, as well as other applications, such as power factor correction, in industrial and telecommunication systems.