ERM10A72-HS

Power (Watts):	50W
Supplier Device Package:	Quarter Brick
Size / Dimension:	2.28" L x 1.45" W x 0.79" H (57.9mm x 36.8mm x 20.0mm)
Package / Case:	Quarter Brick
Mounting Type:	Through Hole
Efficiency:	90%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial), Railway
Voltage - Isolation:	1.5kV
Series:	ERM50
Current - Output (Max):	10A
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	101V
Voltage - Input (Min):	43V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active

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DC DC Converters: ERM10A72-HS Application Field and Working Principle

DC DC converters are electrical devices used to convert one voltage level to another, typically from either higher to lower or lower to higher. Common applications include power electronics and power supplies, with all types of DC converters providing a range of voltage levels for different applications. This article focuses on ERM10A72-HS DC converters, specifically outlining the application field and working principle of these devices.The ERM10A72-HS DC converter is a high-frequency, non-isolated, single output switch mode converter. It can work with input voltage levels of 4.5-72V and it offers high efficiency, low ripple and very low harmonic distortion. The device can deliver up to 10A of continuous output current. It also includes a wide range of protections to enhance user safety, such as Input Reverse Polarity Protection, Overload Protection, Short Circuit Protection and Over-Temperature Protection. The application field of ERM10A72-HS DC converters includes various low power applications such as industrial, automotive, LED lighting, medical, communications and consumer electronics. Its compact size, high power efficiency, wide-input voltage range, low cost and active power factor correction make it an attractive choice for these applications.The ERM10A72-HS DC converter works in a PWM control cycle of PWM frequency and voltage. The PWM control cycle works in two phases: voltage is regulated by controlling the on-time of the power switch, and the inductor current is controlled by adjusting the duty ratio of the PWM signal. During the on-time phase, the power switch is switched on to allow the inductor current to increase. During the off-time phase, the power switch is switched off to maintain the output voltage. This PWM control cycle is repeated continuously, resulting in a regulated output voltage.The ERM10A72-HS DC converter also features Active Power Factor Correction to enable it to achieve higher power factor levels (greater than 0.9). This is achieved by using a proprietary control algorithm which varies the switching frequency based on the required load demand. This helps to reduce the total harmonic distortion of the input current, resulting in higher efficiency and lower harmonic levels.In conclusion, the ERM10A72-HS DC converters are a high-frequency, non-isolated, single output switch mode converter. It is commonly used for low power, industrial, automotive, LED lighting, medical, communications and consumer electronics applications. It has a wide-input voltage range and includes a range of protections to enhance user safety. It works in a PWM control cycle which is regulated by controlling duty ratio and on-time of the power switch. Additionally, active power factor correction is enabled through a proprietary control algorithm to reduce total harmonic distortion and improve power factor levels.

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