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Power Supplies – Board Mount

Power board definition

The power board is to correctly install the board containing the power supply into the electronic device to ensure that the device has enough power to run.
The process involves mounting the power strip securely inside the device, connecting the wires to ensure stable power transfer, and doing some setup and testing to check that the power supply is working properly.
Power strip installation is very important in manufacturing electronic devices as it ensures that the device can be reliably powered. The exact steps may vary depending on your device and power strip.

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Where is the power used?

Many electronic devices require DC voltage, but the power supplied from the outlet is AC, usually 100V or 200V.
In order for these devices to work properly, a power supply unit (power circuit) is required to convert AC power to DC power and adjust the voltage to the required level. This power supply unit acts as a "power translator" for electronic devices, ensuring that they receive the appropriate power to operate.

What is onboard power supply

Onboard power supply is to embed a power module or device into the motherboard of other devices or systems to provide the required power for these devices, just like integrating a small power supply inside the electronic device.
This can effectively reduce the size of the device and provide a more portable solution that is suitable for various electronic devices such as mobile phones, laptops and routers to ensure that they can work properly. This design makes the device more compact and provides the required power management.

How the power board works

The working principle of the power board is to convert the input alternating current into stable direct current, which undergoes steps such as rectification, filtering and voltage stabilization.
It also includes overload and short-circuit protection to ensure the device gets the power it needs and protects it from damage. This ensures that the device operates properly and receives the power it needs.

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4 different types of power supplies

Unregulated power supply
An unregulated power supply is designed to provide a specific voltage to an unregulated current, that is, it provides constant electrical power (voltage x current). This means its output voltage can change based on changes in load.

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Linear regulator
Linear regulated power supplies regulate the output voltage by reducing excess voltage across series dissipative components, using a moderately complex regulator circuit to achieve very low load and line regulation while keeping output ripple and noise very small.

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Switching power supply is a common power supply design type in electronic products. It is characterized by the use of precise switch control, making it suitable for various power conversion needs such as DC to DC, DC to AC, AC to DC and frequency conversion.

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Ripple adjustment
A ripple regulated power supply is an alternative to a linear regulated design in which the circuit "front end" consists of a "brute force" power supply, including transformers, rectifiers, and filters.
The transistor delivers DC power to the large capacitor in a switching (saturation/cutoff) mode as needed to keep the output voltage stable between set high and low points. This design approach is suitable for a variety of applications and offers certain efficiency and cost advantages.

How do I know if my power source is AC or DC?

One way to determine whether you have an AC-DC power supply or a DC-DC power supply is to look at the device itself.
Typically, input and output information is displayed somewhere on the surface of the device. If the input is alternating current, then the AC-DC power supply is used; if the input and output are both direct current, then the DC-DC model is used.

What are the 4 main components of a power supply?

Input: This is where the power supply receives power, usually an outlet or power connector to provide electrical energy.
Rectifier: A rectifier is used to convert alternating current (AC) to direct current (DC) because many electronic devices require DC power to function properly.
Filter: Filters are used to reduce noise and fluctuations in the power supply to ensure that the output power is relatively stable and prevent problems from causing damage to the equipment.
Voltage Regulator: Voltage regulators are used to ensure that the output voltage is stable within a certain range, and are especially important for electronic devices because they are very sensitive to changes in voltage. Voltage regulators ensure that devices receive reliable power.

What types of power strip installation are there?

Through hole mounting
Through-hole mounting is a way of mounting electronic components on a circuit board. In this process, we first need to drill some small holes in the circuit board, then insert the pins of the components into these holes and make sure they are firmly fixed to the circuit board by soldering. This method is very reliable and suitable for electronic equipment that requires long-term stable operation.

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surface mount
Surface Mount Technology (SMT) is a modern method for mounting electronic components on circuit boards. In this process, the electronic components are not inserted into the holes of the circuit board, but are soldered directly to the surface of the circuit board. This approach is more accurate and better suited for smaller devices because it allows for more compact designs and higher circuit density.

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socket type
Socket mounting is a method of soldering a socket to a circuit board so that electronic components can be easily inserted or removed from the socket. This method is suitable for situations where components need to be replaced or maintained frequently, as it makes operation more convenient.

Pinhole mounting
Pinhole mounting is a type of circuit board mounting in which electronic components are inserted into small pre-drilled holes in a circuit board and then soldered to secure them. This method is often used for small components because they do not require a socket and connect directly to the circuit board.

Power board installation principle

The principle of power strip installation is one of the processes of providing power delivery to equipment. First, we secure the power strip into the device just like we would a battery into an electronic device.
We then make sure the device's wires are connected to the power strip, just like the wires between the battery and the device. Next, we adjust the power strip to ensure that the power provided is suitable for the needs of the device, just like we need to choose the right battery for the device.
Finally, we check that everything is working properly and make sure the equipment is running smoothly. The goal of a power strip installation is to get the power that your device needs so that it can function properly.

Why board mounting is important for circuits

The reason why circuit board installation is important is like comparing the internal structure of electronic equipment to the skeleton and organs of the human body. Fitting is like making sure the bones are connected to the right places and the organs are working in harmony so the entire body can function properly.
If there is a problem with the circuit board installation, it will affect the normal operation of the device, just like a physical problem. So circuit board installation is a necessary step to ensure that the equipment is working properly and that everything is in harmony so that the equipment can function properly.

What are the two forms of power?


What is an ordinary power supply

The most common power sources include single-phase AC transformers. This converts the power supply primary voltage to a low (2–20 V) secondary welding voltage.

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How to use power safely

The following are important safety precautions that must be followed carefully:
Always ensure equipment is grounded to prevent electric shock.
Never touch areas with high voltage, as this may result in serious injury or electric shock.
Where possible, cover high-voltage areas with insulation for added safety.
Share hazard awareness with others to ensure everyone understands potential risks.
Use your right hand to operate equipment to reduce the risk of misoperation.
Always turn off power before touching any equipment to reduce the risk of injury.
Be aware of possible electrical charges when handling cables to avoid unnecessary hazards.