Hello Friends, this power supply make 2005 very old. i make bench power supply to this power supply, I am sorry my English is very cheap I try to my best, 3 Transformers use this power supply
  1. BCK 35 Senda ER-35A-2 RQ
  2. HY EE-16A
  3. BCK 16 Senda EE-16B HJ

2 ic use
  1. LM339N SOC60
  2. SOC CHN7500B 60225

This power supply voltage list with ampire, chack with green multimeter haoyue DT830D

  1. Green, Black = Power Supply on






how computer power supply work

A computer power supply unit (PSU) converts the AC power from the wall outlet into the DC power required by the computer components. The power supply unit regulates the voltage and current to provide stable power to the components and protect them from damage due to power fluctuations.

The power supply unit receives AC power from the wall outlet and passes it through a rectifier, which converts the AC power into pulsating DC power. The voltage is then smoothed out by a filter circuit, producing a steady DC voltage.

Next, the voltage is regulated by a voltage regulator, which ensures that the voltage stays within a certain range, even if the input voltage changes. This regulated voltage is then distributed to the different components of the computer, such as the motherboard, CPU, graphics card, and hard drive.

The power supply unit also includes safety features to protect the computer components from damage due to power surges and spikes. A fuse or circuit breaker is used to protect the components from overloading, and a surge protector can be used to protect against power surges and spikes.

The power supply unit also includes cooling fans to dissipate the heat generated by the power supply and keep it running at a safe temperature. The size of the cooling fan depends on the power output of the power supply, with larger power supplies usually having larger fans.

In conclusion, a computer power supply unit is an essential component of a computer system that provides the regulated power required by the computer components. It converts the AC power from the wall outlet into the DC power required by the computer, regulates the voltage and current, protects the components from power fluctuations, and keeps the power supply unit running at a safe temperature.

A computer power supply unit (PSU) is an essential component of a computer system that converts AC power from the wall outlet into DC power, which is needed by the computer components. The PSU regulates the voltage and current, protecting the components from power fluctuations, and provides stable power to the different parts of the computer, including the motherboard, CPU, graphics card, and hard drive. Here's a step-by-step explanation of how a computer power supply works:

Input Power Conversion: The AC power from the wall outlet is first converted into DC power through a rectifier, which converts the AC into pulsating DC.

Voltage Smoothing: The rectified DC power goes through a filter circuit, which smoothens out the voltage and produces a steady DC voltage.

Voltage Regulation: The voltage regulator then takes the steady DC voltage and regulates it to maintain a constant voltage even if the input voltage changes. This regulated voltage is then distributed to the different components of the computer.

Power Protection: The PSU also includes safety features to protect the components from damage due to power surges and spikes. A fuse or circuit breaker can protect against overloading, and a surge protector can guard against power surges and spikes.

Cooling: The PSU generates heat while it is running, so it is important to have cooling fans to dissipate the heat and keep the unit running at a safe temperature. The size of the fan depends on the power output of the PSU, with larger power supplies having larger fans.

Output Connectors: The PSU has connectors that attach to the different components of the computer, providing the regulated DC power to the motherboard, CPU, graphics card, and other components.

In conclusion, the computer power supply unit is an important component of a computer system that provides the regulated power needed by the computer components. It converts the AC power from the wall outlet into the DC power required by the computer, regulates the voltage and current, protects the components from power fluctuations, and has cooling fans to keep the PSU running at a safe temperature.

A computer power supply project involves designing and building a power supply unit (PSU) that provides regulated power to a computer system. This project involves the following steps:

Research: Researching the components and specifications required for a computer power supply is the first step in the project. The type of power supply needed, such as ATX or SFX, must be determined based on the computer components and their requirements. The voltage, current, and power output specifications for each component must also be researched.

Circuit Design: Based on the research, the circuit design for the power supply must be created. This includes the rectifier, filter circuit, voltage regulator, safety features, and cooling fans. The design should ensure that the PSU meets the voltage, current, and power requirements of the computer components.

Component Selection: The components for the power supply must be selected based on the circuit design. This includes the rectifier, filter capacitors, voltage regulator, fuse, cooling fans, and output connectors. The components must be chosen for their compatibility, reliability, and efficiency.

Assembly: The components must then be assembled onto a circuit board or into an enclosure, depending on the design. The circuit must be tested for any defects and the components must be secured in place to prevent any damage during use.

Testing: The power supply must then be tested to ensure that it provides stable and regulated power to the computer components. The voltage, current, and power output should be measured and compared to the specifications. The cooling fans must also be tested to ensure they are functioning correctly.

Final Assembly: Once the power supply has been tested and is working properly, it can be installed into the computer case and connected to the components. The final assembly should include any necessary cable management to ensure a neat and organized installation.

Documentation: The final step is to document the project, including the circuit design, component selection, assembly process, and test results. This documentation will be useful for future reference and can also be used to share the project with others.

In conclusion, building a computer power supply project requires research, circuit design, component selection, assembly, testing, final assembly, and documentation. This project requires a good understanding of electrical engineering, computer components, and power supply design. The final result will be a functioning power supply unit that provides regulated power to the computer components and protects them from power fluctuations and damage.