LM3668SD-4550EV

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The LM3668SD-4550EV Evaluation Board is a DC/DC & AC/DC (Off-Line) SMPS designed to enable users to evaluate the LM3668SD-4550EV high-performance integrated controller. The LM3668SD-4550EV Evaluation Board is an ideal solution for a range of applications requiring low output voltage ripple and low input/output voltage regulation, such as motor control, power supply, home appliances, telecommunication, LED lighting, and battery charging. This evaluation board offers a simple set-up and provides the highest possible performance from the LM3668SD-4550EV integrated controller.

The LM3668SD-4550EV Evaluation Board features comprehensive protection functions such as short circuit protection, over voltage protection, over current protection, temperature protection, over-load protection, and soft start. The board is also designed with an integrated circuit breaker to protect the circuit from short circuits and power supply spikes. Additionally, the board supports automatic frequency control and is equipped with a temperature-sensing transistor for continuous monitoring and thermal protection.

The working principle of the LM3668SD-4550EV Evaluation board is based on the principle of pulse width modulation (PWM) and pulse frequency modulation (PFM). PWM is a technique used to control the power to various electrical devices, such as Motors, Lighting, etc., by generating a series of pulses. PFM is an alternative method of controlling the power, wherein the frequency of the pulses is modulated to adjust the power to the load devices. The LM3668SD-4550EV Evaluation Board uses both PWM and PFM techniques to regulate and control the power to the load devices.

The LM3668SD-4550EV Evaluation Board has an on-board constant voltage control circuit, which is adjustable from 5 V to 35 V. It is also equipped with a current control circuit, which can be adjusted from 0.01 A to 10 A. The board provides excellent protection against short circuit, overload, and over-voltage and is ideal for use in applications requiring precise voltage regulation. The board also supports automatic frequency control, allowing the board to switch frequencies depending on the load requirements.

The LM3668SD-4550EV Evaluation Board also features a high frequency switching regulator, allowing for high frequency pulse width modulation. This type of circuit offers better EMI performance, reduces switching losses, and is more efficient than the traditional linear regulator. The board is designed to operate at frequencies up to 300 kHz and is suitable for a wide range of switching power converter applications.

Overall, the LM3668SD-4550EV Evaluation Board is a high-performance DC/DC & AC/DC (Off-Line) SMPS designed to meet the needs of a variety of applications. The board features an adjustable voltage and current control circuit, temperature-sensing transistor, and short circuit protection for reliable operation. The board also offers two-way communication through its digital controller, which enables the user to adjust the parameters of the power supply. Additionally, the board is designed with a high frequency switching regulator for improved EMI performance, reduced switching losses, and improved efficiency.

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