PCM-400-18-CF

Power (Watts):	400W
Approvals:	CB, CE, cURus, TUVgs
Minimum Load Required:	--
Size / Dimension:	6.00" L x 4.00" W x 2.15" H (152.4mm x 101.6mm x 54.5mm)
Mounting Type:	Chassis Mount
Features:	Adjustable Output, PFC, Remote On/Off, Standby Output, Universal Input
Operating Temperature:	0°C ~ 70°C (With Derating)
Efficiency:	85%
Voltage - Isolation:	3kV
Applications:	ITE (Commercial)
Series:	PCM-400
Current - Output (Max):	12.22A
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	18V
Voltage - Input:	90 ~ 264 VAC
Number of Outputs:	1
Type:	Enclosed
Part Status:	Active

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AC DC Converters: PCM-400-18-CF

An AC/DC converter is a device which converts power from an alternating current (AC) source to a direct current (DC) output. The PCM-400-18-CF is one such device, which belongs to a class of AC/DC power converters called flyback topology converters. This particular converter is intended for high-current applications, such as motor controls, robotic actuators, industrial controllers, and power supplies for medical devices.The flyback topology is based on the transformer principle. The transformer is an electrical component consisting of two separate coils of wire, with one connected to the AC line and the other connected to the DC power output. As alternating current passes through the primary coil of the transformer, it creates a magnetic field which continues to "fly back" through the secondary coil, producing a voltage which can be used to power the connected device.The PCM-400-18-CF takes advantage of the flyback topology by using it to convert high peak currents into lower steady DC currents. This is done by making use of an internal transformer, which is capable of converting line voltages of up to 400V AC to DC output currents of up to 18A. The voltage conversion is handled by a half-bridge rectifier, which converts the input AC voltage into a bi-directional alternating voltage. This alternating voltage is then filtered and stepped down by the transformer secondary before being applied to the output terminals. To ensure that the DC output current is maintained at the desired levels, the PCM-400-18-CF has a series of feedback measures in place. It makes use of high- and low-load current sensing circuits to monitor the output current and compare it to the desired current level. If the output current exceeds or is below the desired level, the converter will adjust its power output accordingly. In addition to regulating the output current, the PCM-400-18-CF also provides protection against short-circuit events and overloading. This is done by using a current-sense resistor in the primary coil of the transformer. When a short-circuit or overload occurs, the current-sense resistor causes the transformer to increase its inductance, thereby limiting the current flow until a safe level is reached. The PCM-400-18-CF can be used in a wide range of applications, from motor controls to medical device power supplies. Its high peak-current capabilities and extensive feedback control system make it an ideal choice for applications requiring reliable power supply at high load currents.

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