EVB-EM2130H01QI

EVB-EM2130H01QI is an evaluation board for use with Intersil’s EM2130QI family of DC/DC and AC/DC (off-line) switched mode power supply (SMPS) controllers. It is designed to provide a simple, low cost reference platform for evaluation and development of AC/DC and DC/DC systems with Intersil’s EM2130QI family of controllers.

The EM2130QI family consists of three monolithic SMPS controllers, EM2130AQI, EM2130BQI, and EM2130CQI, any of which can be used on this evaluation board. The evaluation board also supports Intersil’s synchronous rectifier MOSFET driver, the ISL86686QI, used to drive an externally added synchronous rectifier MOSFET.

The EVB-EM2130H01QI evaluation board is a compact system with many features for ease of use and operation. The wide range of controllers and output power topologies that can be supported provide the user with vast flexibility. This evaluation board is a useful tool for designers in developing high efficiency DC/DC or AC/DC converters for many different applications.

Applications

The EVB-EM2130H01QI evaluation board is suitable for many applications. These are some of the application areas where this evaluation board may be used:

• Automotive Systems
• Power Management and Battery Charging
• Computer Peripheral Systems
• Notebook PCs and Laptops
• Communications and Networking Systems
• White Goods
• Consumer Electronics and Small Appliances
• Industrial Automation
• Factories and Process Control
• Computers and Servers

Working Principle

The EVB-EM2130H01QI evaluation board uses a low cost, fixed frequency oscillator to sense the input voltage, current, and frequency to provide control and monitoring of the output voltage. The PWM (pulse-width modulation) control loop is activated by an external resistor network. This resistor network adjusts the voltage reference to the controller, thereby allowing the user to accurately set the output voltage. The external resistor network also provides a way to adjust the maximum operating frequency of the controller, allowing for high efficiency operation at lower output power levels.

The EVB-EM2130H01QI evaluation board is designed to provide a complete AC/DC and DC/DC power system. The board includes a low voltage differential sensing MOSFET for synchronous rectification of the DC output, adding efficiency at higher operating frequencies. The evaluation board also contains an isolated feedback loop, allowing for positive and negative output voltage operation, and multiple output topologies (single output, dual outputs, 3-phase), depending on the EM2130QI controller used.

The EVB-EM2130H01QI evaluation board also features various protection functions. These include over current protection, over voltage protection, frequency foldback and thermal shutdown. This board is pre-wired with MOSFET gate drive signals and other interface components, making it a complete AC/DC and DC/DC power system offering maximum flexibility and ease of use.

Conclusion

The EVB-EM2130H01QI evaluation board is a versatile and efficient evaluation board for use with Intersil’s EM2130QI family of DC/DC and AC/DC (off-line) switched mode power supply (SMPS) controllers. The wide range of controllers and output power topologies that can be supported provide the user with vast flexibility for developing high efficiency DC/DC or AC/DC converters for many different applications. The board also features various protection functions to ensure safety of use.