SD-1000H-24

Voltage - Output 4:	--
Approvals:	CB, CE
Size / Dimension:	11.61" L x 5.00" W x 1.61" H (295.0mm x 127.0mm x 41.0mm)
Mounting Type:	Chassis Mount
Operating Temperature:	-20°C ~ 60°C (With Derating)
Efficiency:	89%
Applications:	ITE (Commercial)
Voltage - Isolation:	2000V
Power (Watts):	960W
Current - Output (Max):	40A
Series:	SD-1000
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	24V
Number of Outputs:	1
Voltage - Input (Max):	144V
Voltage - Input (Min):	72V
Type:	Enclosed
Part Status:	Active

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DC DC Converters

DC DC converters are used to convert direct current (DC) electricity from one voltage level to another. They are commonly used in multiple industries, from automotive applications to renewable energy, aerospace, and military/defense applications. One of the most common DC DC converters is the SD-1000H-24. This article will discuss the application field and working principle of the SD-1000H-24.

Application Field

The SD-1000H-24 is most commonly used in applications with long duration, low voltage supply requirements. For instance, it is used in distributed power applications, such as distributed data center networks, where the DC DC converter is used for backup power sources or when the main power is not available. It is also used in automotive applications, such as electric vehicles and autonomous vehicles, where the DC DC converter is used to regulate the output of the batteries. Other applications include renewable energy, aerospace, and military/defense applications.

Working Principle

The SD-1000H-24 is a buck converter, meaning it steps down the input voltage to a desired level. It is based on a power electronics circuit that uses high-frequency switching transistors, such as MOSFETs or BJTs, as the primary as well as the secondary switch. The primary switch is used to turn on and off the power flow while the secondary switch helps to regulate the output current. The primary switch is driven by a PWM signal operating at a high frequency. This signal is generated by the DC DC converter’s controller which uses an analog control algorithm. The control algorithm ensures that the output voltage remains stable and within the specified voltage range. When the switch is turned on, the current flows from the input to the output, resulting in a voltage drop across the power inductor, known as the inductor voltage (VIN). The inductor voltage is then regulated by a feedback loop that compares the output voltage (VOUT) with the reference voltage. The difference between the reference and output voltage is then used to adjust the switching time of the switch, which in turn, regulates the output voltage.

Conclusion

The SD-1000H-24 is a popular DC DC converter that is used in applications such as distributed power applications, automotive applications, renewable energy, aerospace, and military/defense applications. It works on the principle of buck conversion and is based on a power electronics circuit that uses high-frequency switching transistors as the primary as well as the secondary switch. It is regulated using an analog control algorithm that compares the output voltage with the reference voltage and adjusts the switch time accordingly.

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