SPDM24501B

Power (Watts):	50W
Approvals:	CE, cULus, TUV
Minimum Load Required:	No
Size / Dimension:	3.94" L x 1.18" W x 3.60" H (100.0mm x 30.0mm x 90.0mm)
Mounting Type:	DIN Rail
Features:	IP20, Universal Input
Operating Temperature:	-25°C ~ 71°C (With Derating)
Efficiency:	87%
Voltage - Isolation:	3kV
Applications:	Hazardous Locations, ITE (Commercial)
Series:	SPDM
Current - Output (Max):	2.1A
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	24V
Voltage - Input:	85 ~ 264 VAC, 120 ~ 375 VDC
Number of Outputs:	1
Type:	Enclosed
Part Status:	Active

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AC DC Converters

An AC/DC converter, also known as a rectifier, is a device used to convert alternating current (AC) to direct current (DC). AC/DC converters are widely used in commercial and industrial electronics, as they allow for the operation of a wide variety of electronics on a standard household electrical supply.

SPDM24501B

The SPDM24501B application field is primarily related to medium- to high-power lighting installations. It offers a high efficiency, low-noise solution to applications that require a medium- to high-power AC/DC input, including LED lighting, occupancy/motion detectors, and other lighting control applications.The SPDM24501B is a self-generating, isolated, single-stage magnetic-compensation converter with a wide range of features and benefits. It contains an integrated voltage regulator module and is capable of operating from 100 to 240 volts of AC supply. Its isolated design allows it to also provide up to 12 VDC at high-voltage level without any additional components.

Working Principle

The basic working principle of the SPDM24501B converter is relatively simple. It uses an input transformer, a diode bridge rectifier, and an output regulator (which is integrated within the converter). The input transformer changes the AC voltage into a DC voltage level, while the diode bridge rectifier converts the AC voltage into a greater DC voltage. This DC voltage is then fed into the output regulator, which is essentially a switching power supply.The output regulator uses its ‘closed-loop’ control system to regulate the output voltage, ensuring that it does not exceed a predetermined level, while also maintaining optimum current and voltage efficiency. The output regulator also has adjustable voltage and current limits, thus allowing the user to configure the exact output voltage according to their requirements.The output regulator also has a ‘forced mode’ feature to provide additional power as needed. This can be used to quickly and easily switch modes and increase or decrease the output voltage, depending on the lighting installation’s current power requirements.

Conclusion

The SPDM24501B is a highly advanced converter, capable of providing up to 12 VDC at high-voltage levels without any additional components. Its self-regulating capabilities, wide range of features, and isolated design make it an excellent choice for medium- to high-power lighting installations and other control applications.

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