TS1220-700B

Thyristors - SCRs are commonly used in power electronics for various types of motor drives, welders and power supplies for renewable energy applications. They are also used for harmonic filtering solutions and high voltage power supplies as well as for frequency converters in industrial processes. The TS1220-700B is a very robust high power thyristor module designed for reliable operation in a wide range of demanding applications.

The TS1220-700B is a horizontal 3-phase thyristor module with an integrated diode bridge consisting of a single SCR, two reversed blocking IGBTs, and a fast acting bypass diode. The device is rated at 700A/1200V with a pulsed on-state current rating of up to 1200A. It also features an LED indicator, a zero-crossing detector, and an isolated gate driver to ensure reliable and accurate operation.

The TS1220-700B has a number of different applications, including motor drives, welding equipment, harmonic filters, high voltage power supplies, frequency converters, and renewable energy solutions. The device is designed to operate in harsh environments and is suitable for use in medium and high voltage applications up to 2000V. It is also designed to offer excellent switching performance with a low on-state voltage drop and low switching losses.

The working principle of the TS1220-700B is relatively simple. When a control signal is applied to the gate of the thyristor, it switches on and remains in the on-state until another control signal is applied. This is usually referred to as latching or “fire-and-forget”. When the control signal is removed, the device switches off and remains off until the next gate signal is applied. The integrated diode bridge allows current to flow in both forward and reverse directions while a fast-acting bypass diode ensures fast recovery from high-current events.

In conclusion, the TS1220-700B is a high power thyristor module designed for a range of demanding applications in power electronics. It is rated at 700A/1200V and is suitable for medium and high voltage applications up to 2000V. The device is easy to use, reliable, and offers excellent switching performance with a low on-state voltage drop and low switching losses. Its integrated diode bridge and fast-acting bypass diode ensure accurate and reliable operation in harsh environments.