QSB40024S12

Current - Output (Max):	33.3A
Control Features:	Enable, Active High
Size / Dimension:	4.60" L x 2.40" W x 0.50" H (116.8mm x 61.0mm x 12.7mm)
Package / Case:	16-DIP Module
Mounting Type:	Through Hole
Efficiency:	86%
Operating Temperature:	-40°C ~ 100°C
Features:	Remote On/Off, OCP, OTP, OVP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	400W
Series:	QSB
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	36V
Voltage - Input (Min):	9V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Box

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DC DC Converters

DC-DC converters are a type of power conversion devices which convert a DC voltage from one level to another. They are commonly used in various industrial, commercial, and residential applications to improve the efficiency and performance of electrical systems. The QSB40024S12 is a DC-DC converter with a wide range of application fields and working principles.The QSB40024S12 is a dual-channel, pulse width modulation (PWM) converter that can be used for DC/DC conversion between 12 and 24V. It is designed to convert input currents up to 30A and supports over-current protection, over-voltage protection, over-temperature protection and input transient protection. Its output voltage can be adjusted from 0 to 100%, and the current sharing between the dual outputs can be adjusted from 0 to 50%.The main application field of the QSB40024S12 is industrial motor drive systems where high current and voltage requirements must be kept within a certain range. It is also suitable for LED lighting, electro-mechanical circuit and automotive applications. Moreover, the QSB40024S12 is often used in railway, offshore and marine applications due to its robust construction and high operational reliability.In terms of working principle, the QSB40024S12 uses Pulse Width Modulation (PWM) conversion and digital control to convert the input voltage to the desired output voltage. The voltage is adjusted by varying the amount of time that a set of transistors are turned on and off in rapid fashion. The input voltage is compared with the reference voltage to measure the time difference. The transistors alternatively turn on and off based on the difference between the input and reference voltage to create the output voltage.The advantages of the QSB40024S12 include a low switching frequency, allowing for longer life and lower noise compared to other DC-DC converters. Additionally, the PWM conversion provides greater efficiency than conventional linear regulators and a wide operating temperature range.In conclusion, the QSB40024S12 is a high-performance dual-channel pulse width modulation DC-DC converter used for a variety of applications in industrial motor drives, LED lighting, electro-mechanical circuits, automotive applications, railway, offshore and marine applications. It is designed with over-current protection, over-voltage protection, over-temperature protection and input transient protection as well as a low switching frequency for long life and low noise. The PWM conversion also provides greater efficiency compared to linear regulators.

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