EVB-ER3125QI

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The EVB-ER3125QI is a fully featured Evaluation Board for high accuracy AC/DC and DC/DC SMPS applications. Its wide range of features make it suitable for a variety of applications. This includes battery charger, power supply, automotive and microwave power application.

In a SMPS based on Er1125Qi device, a controller is used to switch the power MOSFET by operations and feedback signals. The device has two digital ports for controlling MOSFETs and conversor outputs. This enables very fast transient response time, duty cycle control accuracy and duty cycle control frequency. The jumpers on the board can further adjust the timing control options. This makes the EVB-ER3125QI a highly reliable, precise and robust board for SMPS.

The EVB-ER3125QI can be used to evaluate the performance of Er1125Qi device in different types of converters. It can be used for open loop as well as closed loop systems. In open loop systems, the device need only supply a steady control signal with no feedback. In closed loop systems, the device will continuously sample the output voltage or current and adjust the converter accordingly. The range of applications that can be evaluated includes: DC/DC converters, AC/DC converters, forward converters, flyback converters, interleaved converters, and synchronous rectifiers.

The EVB-ER3125QI board feature a number of components, such as the control IC, power MOSFETS, programmable oscillators, rail to rail amplifier, analog and digital I/O, internal clocking and protection circuitry. It also allows for the addition of external components such as switching diodes, inductors, capacitors, sensors and feedback loops.

The control IC inside the EVB-ER3125QI is designed to manage the signal conversion process. It features variable frequency settings, pulse-width modulation (PWM), and closed-loop feedback control. The various onboard circuits including MOSFETs, analog and digital I/O, combined with the integrated oscillator and clocking functions, enable the device to produce high-efficiency and precise control of the output voltage or current over a wide range of currents and voltages. The settings can be adjusted from the voltage regulation, duty cycle control, on/off delay, undervoltage lockout, and other related parameters.

The EVB-ER3125QI also incorporates several protection features, such as over-temperature protection, over-current protection, and short-circuit protection. The onboard power MOSFETs also provide high switching speed, low on-resistance and low gate charge operation for accurate current control. With its advanced features, the EVB-ER3125QI is the ideal choice for applications requiring accurate, reliable and robust control.

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