24V 1A Base Plate Switching Power Supply PCBA Board

Function

• Convert the input AC power into a stable 24V DC power with an output current of 1A, providing a stable power supply for various electronic devices or circuits that require a 24V power supply.

Components

• Input rectifier and filter circuit: composed of diodes, capacitors and other components, which rectifies and filters the input AC power and converts it into smooth DC power.

• Switch tube: one of the core components of the switching power supply, which controls the conversion of electric energy through high-frequency switching action.

• Transformer: used to convert the input high voltage into a suitable output voltage, and at the same time realize the electrical isolation of the input and output circuits.

• Output rectifier and filter circuit: rectify and filter the AC power output by the transformer to obtain a stable 24V DC output.

• Control circuit: usually includes PWM (pulse width modulation) controller, etc., which is used to control the on and off time of the switch tube to stabilize the output voltage.

• Protection circuit: including overcurrent protection, overvoltage protection, overheating protection and other circuits, to protect the power supply and load equipment from damage when abnormal conditions occur.

Working Principle

• The input AC power is converted into DC power after rectification and filtering, and the DC power is converted into high-frequency pulse voltage through the high-frequency switching action of the switch tube. This pulse voltage is converted into a suitable output voltage by the transformer, and then passes through the output rectification and filtering circuit to obtain a stable 24V DC output. The control circuit detects the change of the output voltage and adjusts the on-time of the switch tube in real time to ensure that the output voltage is stable at 24V. When abnormal conditions such as overcurrent, overvoltage or overheating occur, the protection circuit will act quickly to cut off the power supply or take other protective measures.

Design Features

• Surface mount technology (SMT) is usually used to make the PCBA board have a high degree of integration and reliability, while reducing the volume.

• It has a good electromagnetic compatibility design, and through reasonable wiring, shielding and other measures, it reduces the electromagnetic interference of the power supply to other devices, while improving its own anti-interference ability.

• The substrate type design is easy to install and fix in various equipment or instruments, which is convenient for users to integrate and apply.

Application fields

• Widely used in industrial automation equipment, smart home systems, security monitoring equipment, communication equipment and other fields, providing a stable 24V power supply for the electronic components and circuits in these devices.