SBRT60U60CT

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Diodes - Rectifiers - Arrays: SBRT60U60CT application field and working principle

SBRT60U60CT is a complete three-phase bridge inverter module. It is a component of Diodes, Rectifiers, and Arrays. It is primarily used in three-phase photovoltaic systems and motor drives. Its application fields include household appliances, industrial automation, air conditioners, electric welding machines, pumps, fans, electric vehicles, and electronic ballasts.

The internal structure of SBRT60U60CT consists of two isolated power MOSFETs (metal-oxide-semiconductor field-effect transistors) connected in series and two shunt diodes for integrating current in the bridge circuit. The series connection is responsible for complementing the load current with a nearly sinusoidal wave form. Meanwhile, the shunt diodes detect the current and this detected signal is passed to the low-side gate driver. With one signal “high” and another “low”, the gate signal can be inferred to be “high” or “low”, thus allowing the MOSFETs to switch between open and closed states.

The general working principle of SBRT60U60CT is very simple. With a DC power supply and DC electric load, the current is converted into a three-phase AC output. This is done using the two power MOSFETs and two shunt diodes, that together form the bridge configuration. When the current passes through the bridge circuit, the shunt diodes detect the current and the gate signal is sent to the low-side gate driver. The gate driver then controls the two MOSFETs to switch states, which in turn allows for the AC output.

SBRT60U60CT is a good choice for applications that require a three-phase output. The two-level topology keeps the operating frequency low and it ensures a smoother and more efficient simultaneous bidirectional current conversion. On top of that, its wide operating voltage and current range makes it suitable for most applications. Owing to its high power conversion efficiency, small form factor, and optimized heat dissipation, SBRT60U60CT is the preferred choice for photovoltaic systems and motor drives.

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