FX23-100S-0.5SV(20)

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Miscellaneous covers a broad range of topics, and here discusses one of them: the application field and working principle of the FX23-100S-0.5SV(20). This specific part is a single-output switching power supply of 100 watts which operates from an input voltage of 85-135 Vac, 180-264 Vac, or 80-373 Vdc. It also can provide regulated output voltage within the range of 0.5 to 30 Vdc, and an output current range of 0.2-20Amps.

The FX23-100S-0.5SV(20) has a wide range of applications. This device is ideal for a variety of industrial automation, office automation, communications, LED lighting, and other general purpose applications that require a regulated output voltage that must be controlled with precision over a wide current range. The external current limit control on the FX23-100S-0.5SV(20) provides the ability to save the power supply and its connected load in an overload or short circuit condition.

The working principle of the FX23-100S-0.5SV(20) is relatively simple. The switcher contains a small transformer or coupled inductors, along with a rectifier, a filter capacitor, and control electronics. The control electronics regulate the control process of the power supply and can be adjusted to maintain a constant output over a wide range of input variations, due to changes in temperature, line voltage, or load current.

The power supply is powered on when the power switch is closed, the primary side of the transformer is connected to the bridge rectifier, and the secondary side is connected to the output filter network, which contains a capacitor and an inductor. When the rectified AC voltage reaches a certain threshold, it turns on the power MOSFET, so that the primary winding is connected to the DC bus voltage, and the energy transfer that happens within the transformer creates a secondary AC waveform, which is rectified and filtered and further produces the output voltage.

More specifically, the power MOSFET drives the transformer\'s primary winding so the output voltage can be accurately regulated. The power MOSFET is connected to the control circuit, which relies on either a pulse-width modulated (PWM) or analog-based feedback loop. This feedback loop monitors the output voltage and adjusts the duty cycle of the drive signal sent to the power MOSFET to maintain the output voltage. By using a regulated PWM or analog-based feedback loop, the output voltage can be adjusted automatically to keep up with changes in the input voltage or load current.

In summary, the FX23-100S-0.5SV(20) is a single-output switching power supply that is useful for a variety of industrial, office, communication, and LED lighting applications. It has a wide range of input voltages, and can provide regulated output voltage within the range of 0.5 to 30 Vdc, and its output current range is from 0.2-20 Amps. Its feedback loop is based on either pulse-width modulation or analog feedback to regulate the constant output voltage across a range of variations.

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