PV76L20-16SZ

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PV76L20-16SZ is an integrated circuit designed for the control and protection of photovoltaic Power Conversion Systems (PCS). The circuit is based on the Intelligent Secondary Power Conversion System (ISEPS) which comprises the DC-DC and AC-DC converters as well as other power management functions. The DC-DC converter is used to transfer the charge from the photovoltaic cells to the capacitor bank and from the capacitor bank to the load. The AC-DC converter is used to convert the incoming power from the utility grid to three phase AC for use in the system. The ISEPS also includes additional features such as overvoltage, overcurrent, temperature, and short circuits protection, as well as load sharing.

The PV76L20-16SZ is designed for use in high-power and high-efficiency solar applications, with a protection voltage of up to 500V and an operating frequency up to 400KHz. It is equipped with a 12-bit Internal Data Interface (IDI) communication bus, allowing easy integration with controllers and other modules. It also has an Auxiliary Output which can be used to control and monitor the power conversion system. In addition, the circuit includes a Digital Error Checker (DEC) which checks the operation of the converter and reports errors.

The PV76L20-16SZ primary design goal is to provide easy integration, cost effective control, and reliable protection of PCSs. It uses a MOSFET based buck topology to provide high-efficiency DC-DC conversion with low switching losses. The circuit also operates using Pulse Width Modulation (PWM) technology to precisely control the input inductor current and resulting output voltage. The output voltage is adjustable by means of the Digital Input/Output (DIO) which is used to control the duty cycle and therefore the voltage. Furthermore, the circuit\'s switching frequency can be changed up to 400KHz, allowing for higher conversion efficiency or faster response time to load changes.

Given its capability and design features, the PV76L20-16SZ is suitable for applications including residential and commercial solar systems, telecommunications, and LED lighting. The circuit can greatly reduce the number of components required for power conversion and controls, and therefore simplify the design of the system. The integrated features provide protection and monitoring, as well as guarantee system’s reliability, safety, and higher conversion efficiency.

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