STEVAL-ISA133V1

Series:	--
Part Status:	Active
Main Purpose:	AC/DC, Primary Side
Outputs and Type:	2, Isolated
Power - Output:	7.5W
Voltage - Output:	3.3V, 13V
Current - Output:	550mA, 100mA
Voltage - Input:	90 ~ 264 VAC
Regulator Topology:	Flyback
Frequency - Switching:	--
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	ALTAIR04-900

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STEVAL-ISA133V1 is an evaluation board designed for DC/DC and AC/DC off-line SMPS. To understand the application field and working principle of this board, it is essential to comprehend the concept of switch mode power supply (SMPS).A switch mode power supply is a power delivery system consisting of semiconductor switches and other components. The differences between a switch mode power supply and the traditional linear power supply system are largely in terms of efficiency, size, and cost. In fact, SMPS have become the primary choice for power supply due to their significantly higher efficiency compared to their linear counterparts. Power supplies using SMPS are generally used in applications where size and weight are critical and low power dissipation are must.The STEVAL-ISA133V1 is ideal for AC/DC and DC/DC off-line SMPS applications. It is capable of providing a regulated power output up to 8W with a wide input voltage range of 90–135V AC or 90–264V AC, and its output voltage can be adjusted from 3.3V to 48V. The board\'s features include fast transient response, low power dissipation, and overload and short circuit protection.The working principle of the STEVAL-ISA133V1 is based on a flyback converter topology. A controlled switch modulates and synchronizes current pulses into the primary winding of the output transformer and generates the required DC output voltage. Current pulses will flow through the primary winding of the transformer until the voltage on the output capacitor and the load reach the level programmed for the output. Afterwards, the output voltage is monitored for maintaining the steady DC output voltage.In summary, the STEVAL-ISA133V1 is an ideal evaluation board for DC/DC and AC/DC off-line SMPS applications. It is capable of providing a regulated power output with a wide input voltage range, fast transient response, low power dissipation, and overload and short circuit protection. Its working principle is based on a flyback converter topology, where a controlled switch modulates and synchronizes current pulses into the primary winding of the output transformer and generates the required DC output voltage.

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