R1D-1215

Current - Output (Max):	33mA, 33mA
Control Features:	--
Size / Dimension:	0.60" L x 0.42" W x 0.28" H (15.2mm x 10.7mm x 7.0mm)
Package / Case:	10-SMD Module, 6 Leads
Mounting Type:	Surface Mount
Efficiency:	82%
Operating Temperature:	-40°C ~ 100°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	1W
Series:	ECONOLINE R1D
Voltage - Output 3:	--
Voltage - Output 2:	-15V
Voltage - Output 1:	15V
Voltage - Input (Max):	13.2V
Voltage - Input (Min):	10.8V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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DC DC Converters

DC-DC converters modify or transform power to make it suitable for the requirements of a certain application, so that the output voltage of an applied power is consistent with that of the load. R1D-1215 is one of the DC-DC converters, this converter uses a transformer for electrical isolation and voltage step-down to achieve DC voltage output. This article introduces its application fields and working principles.

Application Fields

R1D-1215 is widely used in ac-dc power supply, motor drive, communication equipment, industrial control system, instrumentation, lighting, security, automotive, solar energy, UPS and other fields.

Input and Output

R1D-1215 has a regulated wide three-phase input voltage range from 90Vac to 600Vac, and a wide single-phase voltage range from 90Vac to 350Vac, and its output voltage is adjustable. It has precise voltage regulation performance, low ripple coefficient, high voltage accuracy, high efficiency, wide temperature compensation range, high stabilization, current limiting protection and thermal protection functions, as well as waterproofing, energy saving, long life characteristics.

Working Princple

The basic working principle of R1D-1215 is that a transformer and a full-bridge rectifier are used to reduce the input voltage, and then through the rectifier and filter circuit, the voltage is converted into DC voltage. Then through the PWM control circuit, the DC voltage output is stable and the voltage is adjusted.Here’s a detailed diagram of the process. The input voltage is first rectified by the full-bridge rectifier, and then fed to the reactor, which acts as an input filter circuit, removing the high-frequency AC component generated by the full-bridge rectifier. After the voltage is regulated through the filter circuit, it will pass through an electromagnetic transformer, the secondary winding of which will output an alternating voltage to the rectifier. The voltage is then rectified and filtered to output a DC voltage.The following is a simplified wiring diagram for the R1D-1215.The input voltage is rectified by the full-bridge rectifier, and then filtered by the inductor. The output of the inductor is then fed to the PWM control circuit, which is used to control the switching frequency of the inverter, and the regulated DC voltage is obtained from the output of the inverter.The PWM control circuit is composed of two comparators and an oscillator, one of which is a reference voltage, and the other is an error amplifier, combining an automatic voltage control loop to regulate the voltage output. Therefore, when the voltage input deviates from the rated value, the PWM control circuit will be triggered and the voltage regulator circuit will adjust the output voltage accordingly to maintain the output voltage at its set value.The output voltage of R1D-1215 is adjustable from 10Vac to 600Vac, and its efficiency is up to 90%, and its size is small, and its ripple coefficient is very small, up to 10mV, making it very suitable for many application fields.In short, the R1D-1215 DC-DC converter is widely used in various fields with advantages of high accuracy and efficiency, small size, long life, etc. It is an ideal choice for applications that require stable and reliable DC power supply.

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