STEVAL-ISA045V2

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The STEVAL-ISA045V2 is an evaluation board designed for use with off-line DC/DC and AC/DC switched mode power supplies (SMPS). The board features a 3-phase bridge rectifier, two pulse-width-modulated (PWM) power stages for single output and a multi-pulse output, allowing the use of two paralleled outputs with different switching frequency values.

The evaluation board is made of two boards, the main board and the daughterboard, which include components necessary to perform various tests. The main board features an on-board compensation circuit and an Advanced Power Electronics controller (APEC) configured as a current-mode controller with I2T protection.

The on-board easy-to-use programming interface also allows for the configuration and control of the PWM power stages. Input voltage, output load current, and operating temperature can be configured and monitored through the integrated display.

The STEVAL-ISA045V2 has a power stage that features both a single output and a dual-mode output, allowing for the flexibility to use two paralleled outputs with different switching frequencies. As the output current is directly proportional to the input voltage, the design can easily be adapted to suit a wide range of loads.

By connecting an ideal diode and a resistive element to the output of the device, a Boost Mode Power Supply (BMPS) can also be implemented, making the device suitable for an even greater range of applications. The design includes both a soft-start and an overcurrent protection feature to ensure safe and reliable operation.

The on-board design also includes a ‘Sense Point Voltage’ (SPV) sensing circuit which allows the output current to be measured without the need for an external voltmeter. The evaluation board also includes an adjustable low-voltage protection feature, which can be used to enable the device to shut-down when the output voltage drops below a preset level.

Overall, the STEVAL-ISA045V2 is a versatile and easy-to-use evaluation board for providing power from a DC/DC or AC/DC source. The design of the board is optimized for use with off-line switched mode power supplies. With its adjustable features and robust protection, it is suitable for a variety of applications.

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