VI-BT1-IW-S

Current - Output (Max):	4.17A
Size / Dimension:	4.60" L x 1.80" W x 0.52" H (116.8mm x 45.7mm x 13.2mm)
Package / Case:	Full Brick
Mounting Type:	Through Hole
Efficiency:	90%
Operating Temperature:	-40°C ~ 85°C
Features:	OCP, OTP, OVP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	100W
Series:	VI-200™
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	160V
Voltage - Input (Min):	66V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Bulk

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DC-DC converters generally refer to devices, components or circuits that convert direct current from one voltage level to another. Within this broad definition of DC-DC converters, the VI-BT1-IW-S application fields and working principle may be best understood in further detail.The VI-BT1-IW-S are DC-DC converters that are used to provide a regulated voltage output from a rectified dc input or from other sources such as batteries. They are used in a variety of applications such as power system design; electromagnetic interference (EMI) filtering; power supply transduction; high-frequency switching power supplies; mobile voltage regulatoin; and system energy optimization.Unlike traditional voltage regulators, the VI-BT1-IW-S offer a wide range of features that enable them to be used in advanced applications. Some of these features include a typical efficiency rating of greater than 97%, a wide temperature range of -20°C to +75°C, a fast transient response time of less than 200ns, a broad range of input voltages of up to 350Vdc, and an output current of up to amperes. The basic working principle of the VI-BT1-IW-S involves the generation of a DC-DC conversion from a rectified dc input. This is accomplished by a two stage process in which the first stage consists of an unregulated DC-DC conversion from the rectifier stage, and the second stage consists of a regulated regulated power conversion stage. The first stage of the VI-BT1-IW-S involves a switching frequency from 18Khz to hundreds of Khz, which increases the input voltage from 8Vdc to the desired output voltage. This process utilizes an inductor and capacitor, in order to provide the current and voltage required to achieve the desired output voltage.The second stage of the VI-BT1-IW-S is one of regulated power conversion. This stage involves the use of high frequency PWM (Pulse Width Modulation) signals in order to control the output voltage and current. Here, current control is employed by sensing the output of a shunt resistor, while voltage control is employed by a comparator circuit. When the output voltage reaches the predetermined set-point, the relative duty cycle of the PWM waveform then changes, in order to regulate the output voltage and current.In summary, the VI-BT1-IW-S are DC-DC converters that offer a variety of features for use in a variety of applications. These features allow them to provide a regulated voltage output from a rectified DC input, through a two-stage process that involves unregulated dc-dc conversion, followed by voltage and current regulation.

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