Because the power supply current is too small to burn, which part is generally broken?

1.Power failure is common for rectifier tube damage.

2.Or the three-end regulator tube is damaged.

3.The electrolytic capacitor has enough withstand voltage and is less bad.

Dear, I'm glad to answer for you before Hui Mao, to be precise, the current exceeds the rated current of the electrical appliance, and the continuous fault operation and poor heat dissipation will burn the electrical appliance! Because the burning is originally caused by the current heating, there are several situations of current heating: 1. Poor heat dissipation, even if the current is small, the electrical appliances will still accumulate heat until the electrical appliances are burned when they are used in an environment that does not meet the requirements.

2. A short circuit is generated after the voltage is cleared before the voltage strikes, forming a short circuit with a large amount of auspicious heat and burning electrical appliances. 3. Fault current or high current generates a large amount of heat. I hope mine is helpful to you and I wish you a happy life.

Answer: If one of the types of belt appliances in the circuit is broken, the current of the circuit becomes smaller.

Analysis: This is because the current household circuit Bu Helu are parallel circuits, the total current of the parallel circuit is equal to the sum of the current of each branch, when an electrical appliance is broken, it means that the branch has no electricity, that is, there is no current, the total current of course becomes (subtracts) the beat.

Summary. Hello, for the answer to your question power partially burned out:1

The power supply is dusty, resulting in uneven heat dissipation, too high temperature, and burning the power supply components 2The temperature of the fan is too high due to aging and dust accumulation, which causes the heat dissipation function to be too high, and burns the power supply components3The external voltage and current of the power supply (i.e., the home circuit) are unstable, and the power supply element 4

The power supply is aging, and the wires are peeling, resulting in a short circuit and burning.

Hello, for the answer to your question power partially burned out:1The power supply is dusty, resulting in uneven heat dissipation, too high temperature, and burning the power supply components 2

The temperature of the fan is too high due to aging and dust accumulation, which causes the heat dissipation function to be too high, and burns the power supply components3The external voltage and current of the power supply (i.e., the home circuit) are unstable, and the power supply element 4The power supply is aging, and the wires are peeling, resulting in a short circuit and burning.

A power supply is a device that converts other forms of energy into electrical energy and provides electrical energy to electrical circuits (electronic devices).

The power supply is based on the principle of "magnetic electricity", which is generated by renewable energy sources such as hydropower, wind power, ocean tides, dam water pressure difference, solar energy, and coal burning and oil residue.

There is no harm to your electrical appliances, and there is no harm to your power supply when it is only connected to this equipment!

The 12V indicated by the appliance is its rated voltage and rated current (that is, it can work normally at this voltage, and the current generated during normal operation), and the 12V 2A of the power supply is the voltage it provides and the current it can withstand. When you power multiple devices from a single power supply, the power supply supplies power to those devices in parallel. The current flowing through both ends of the power supply will be the sum of the currents of these devices!

As long as the current of your device does not exceed this value, it is safe. If it is exceeded, the power supply will be burned due to overcurrent and cause an accident! That is, overload!

Three standards of electrical energy: voltage, frequency, waveform! The frequency is generally 50Hz, and the general equipment only needs to observe the voltage within the range of the rated voltage.

Do your best, please criticize if you don't answer well!

Electric currents have a thermal effect, according to Joule's law: the heat generated by the passage of an electric current through a conductor is proportional to the square of the current, proportional to the resistance of the conductor, and proportional to the energizing time. It is inevitable that the circuit will have resistance, so when the current is high, the heat generated will be too much, so that the circuit will be burned out.

Excessive current usually occurs when there is a short circuit. When the wire is directly connected between the positive and negative poles of the power supply, and the current does not pass through the consumer, this circuit is called a short circuit. When the power supply is short-circuited, the current in the circuit is very strong, which will cause the wire and power supply to heat up, damage the power supply and ammeter, and even cause disasters.

Therefore, the phenomenon of short circuit should be avoided during operation. However, when the two ends of the electrical appliance are connected with a wire, the electrical appliance is short-circuited, and the current does not pass through the electrical appliance, but flows directly from the wire, and the electrical appliance will not burn out, but it cannot work normally, so it is allowed.

If it's not that the total gate safety number is too small, it's broken. There are only three cases of total gate jumping. 1: Short circuit (no power at all). 2: The load current is exceeded. 3: It's broken.

The output current of the power supply is limited, and there is a "maximum output current" data. Moreover, any power supply has a certain internal resistance. When there is a current output, the internal resistance is also heating (which is why the generator needs to be cooled with water, air, and hydrogen).

When the current is too large, the heat generated on the internal resistance is too large, and the generator will be burned.

Batteries, dry batteries and other power supplies also have a maximum output current, and high-current discharge will make the chemical reaction in the battery unable to be carried out thoroughly, resulting in a decrease in the discharge of the power supply, shortening the battery life, and overheating the battery to make the battery leakage and so on. An overload of a regulated power supply can damage the electronic components inside.

The voltage drop across the internal resistance is also smaller, and the output voltage is automatically adjusted.

If the power of the computer power supply is too high, it will not burn out other parts.

The power of the computer power supply refers to the power that can output so much power to ensure the normal operation of the computer, rather than always using such a large power to output. There are two kinds of computer power supply, one is the maximum power and the other is the rated power.

The rated power is the power marked by the power supply manufacturer in accordance with the standards set by Intel, which can characterize the average output of the power supply, and the unit is watts, referred to as watts (W). The higher the power rating, the more equipment the power supply can load.

Maximum power refers to the maximum change in the energy of the circuit components in the unit time of the power supply, which is a physical quantity with magnitude and positive and negative. In this case, the maximum output power is specifically referred to. The higher the maximum power, the more devices the power supply can load.

FYI. Liang Zhaoling.