VI-2WM-CV

Current - Output (Max):	15A
Size / Dimension:	4.60" L x 2.40" W x 0.50" H (116.8mm x 61.0mm x 12.7mm)
Package / Case:	Full Brick
Mounting Type:	Through Hole
Efficiency:	90%
Operating Temperature:	-25°C ~ 85°C
Features:	OCP, OTP, OVP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	150W
Series:	VI-200™
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	10V
Voltage - Input (Max):	36V
Voltage - Input (Min):	18V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Bulk

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DC–DC Converters

DC–DC converters are integrated circuits that convert direct current from one voltage level to another. They are used in applications ranging from power supplies to communications equipment and automotive and aerospace applications.The VI-2WM-CV is a novel type of DC–DC converter which uses an integrated circuit to step down a higher voltage and current region to a lower voltage and current region. The VI-2WM-CV offers improved efficiency and power supply density compared to conventional DC–DC converters. It operates at wide input voltage (Vin) range and offers high power density capabilities.

Application Field

The VI-2WM-CV is suitable for a broad range of DC–DC conversion areas, such as automotive, communications, lighting, and industrial applications. The linear nature of the switching transitions allows for a high efficiency and wide frequency operation up to 70 kHz.The VI-2WM-CV is specifically designed for use in automotive applications, such as power management systems, which require highly stable power sources. The device is also highly suitable for operating in harsh environmental conditions, such as extreme heat or humidity. As a result of the device’s high efficiency and wide voltage input range, it is also suitable for use in consumer and commercial power supplies where a low cost, highly reliable solution is desired.

Working Principle

The VI-2WM-CV operates using a continuous conduction mode (CCM). In this mode, the inductor acts as a transformer and the switch acts as a freewheeling diode. This allows the device to operate at a constant frequency and also permits the input voltage to be varied. The device operates by transferring energy from the input voltage into the output voltage via the switching operations of the signal generator. During the transfer, the input is briefly interrupted and the output rapidly adjusts with the change in voltage. The frequency of the switching operations is controlled by the oscillator, which is typically either a TCR frequency synthesizer or a crystal oscillator, depending on the application. The oscillator monitors the input voltage and adjusts the switching frequency accordingly. The signal generator is responsible for controlling the switching frequencies and duty cycle. The signal generator includes a comparator which compares the output voltage to a reference voltage and adjusts the frequency to keep the output voltage at the desired level.The VI-2WM-CV is typically operated in a discontinuous mode (DCM). In this mode, the device operates at a fixed frequency and the output voltage is regulated by adjusting the duty cycle of the switching operations. This mode of operation provides stability and accuracy in the output voltage, and as a result, is commonly used in precision power supplies and communications applications.

Conclusion

The VI-2WM-CV is a highly efficient DC–DC converter that offers improved power supply density compared to conventional DC–DC converters. It is suitable for wide range of applications, from automotive to consumer and commercial power supplies. The device operates by transferring energy through an inductor and switch and is capable of operating in both continuous and discontinuous modes. The oscillator and the signal generator are responsible for adjusting the switching frequency and duty cycle respectively in order to regulate the output voltage.

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