A limit specified in the operating and environmental conditions of electronic equipment which, if exceeded, can cause permanent damage to the converter.

A filter circuit that suppresses or weakens unwanted frequencies in alternating current.

An electronic component that converts AC(alternating current voltage) to DC(direct current voltage).

Operating the newly manufactured power supply at a rated load for a period of time to troubleshoot initial component failures or other potential defects.

The temperature of the still air around a power supply while it is operating.

Balun filter is commonly used in DC-DC converters, it will be connected to the input power line, it shows low impedance for differential signals; It shows high impedance for common mode signals.

In terms of stability, the lower the bandwidth, the more stable the power supply; From the perspective of dynamic indicators, the higher the bandwidth, the better the dynamic performance of the power supply, the higher the power density and the lower the cost.

A piece of metal which all of the converter installed on and is designed to carry away the heat generated by the electronic components.

The voltage that damages the insulation of electronic products and causes leakage of electricity or even sparks. For power modules, the breakdown voltage is the maximum AC or DC voltage that can be applied from input to output.

Operating the newly manufactured power supply at a rated load for a period of time to troubleshoot initial component failures or other potential defects.

An electronic component that stores electric charge. It has the function of passing alternating current and isolating direct current.

The case temperature of the power supply in normal operation.

CFM means cubic feet per minute (cu ft/min). It is a measurement of the velocity at which air flows into or out of a space.

A passive components used for filtering to meet the power requirements of electronic equipment.

It is equivalent to combining two inductors together to make the current difficult to pass, in order to play the role of common mode current non-circulation and differential mode current circulation

It is equivalent to combining two inductors together to make the current difficult to pass, in order to play the role of common mode current non-circulation and differential mode current circulation.

Stray current, such as stray capacitance, that passes through the ground and returns to the power line.

Use a radiator or place the power module on the metal to dissipate heat .

A form of cooling in which heat is dissipated by the flow of gases.

It refers to the heat generated by the current flowing through the thermal conduction in the winding wires of transformers or other electronic equipment, which is the loss of energy.

It refers to the rate of change of the output voltage of the whole power supply when the load current of one circuit of the multi-circuit output power supply changes, which is an important index to examine the multi-circuit output power supply.

When an overvoltage is detected, the product will be shut down to protect the load.

A value of the output current of a power supply, beyond which the current begins to be limited, that is, it remains at its maximum output.

Control the output current of the power supply to prevent damage to the load and power supply due to excessive current.

It is an improvement from the voltage mode and can be used to replace the triangle wave to detect the inductive current of the circuit. It can also be used to replace the inductive current of the circuit with the current of the transistor or the resistance of the electric flu to detect the current.

When the line current is too high, the test will be calculated at a rate of low current.

A filter circuit that suppresses or weakens unwanted frequencies in direct current and uses capacitance to filter the output waveform more smoothly.

A power supply that converts an unstable direct current to a stable output direct current of different voltages for use in electronic equipment.

Refers to the resistance generated when direct current passes through electronic components, that is, the inherent static resistance of the components.

Electronic components are deliberately operated at less than their maximum operating capacity so that they can operate at higher temperatures.

A dielectric (or dielectric material) is an electrical insulator that can be polarized by an applied electric field. It is an excellent capacitor material.

The maximum voltage that the dielectric can withstand without damage.

Voltage and current are transmitted through two wires as a round trip line, respectively.

Differential Mode Noise

Distributed capacitance exists between two conductors with voltage difference and mutual insulation, which emphasizes the uniformity of distribution. Generally speaking, the smaller the distributed capacitance of an inductor is, the higher its natural vibration frequency is. The larger the distributed capacitance is, the lower the natural frequency will be.

Other things being equal, the variation of output voltage with time after heating process is called drift.

The ratio of working time to total time in a period.

The rate of change of the output voltage when the output current changes rapidly.

The response of a control system to its output from its initial state to its final state under typical input signals.

The ratio of total output power to output power is expressed as a percentage.

The ability of a device or system to operate normally in its electromagnetic environment without causing intolerable electromagnetic disturbance to anything in the environment. Includes EMI and EMS.

Electronic devices interfere with other electronic devices through electromagnetic waves.

A equipment that controls current, voltage and resistance.

It is the transfer of electrostatic charges between two objects with different electrostatic potentials that can cause current thermal effects, such as sparks and electromagnetic interference.

It is an equivalent inductance in a circuit element, used to describe the inductance component of the impedance in the circuit element.

An ideal capacitor does not lose any energy on its own, but in practice, because the material used to make it has resistance, the dielectric of the capacitor has losses. This loss is external and behaves like a resistor in series with a capacitor, so it is called ＆quot;equivalent series resistance＆quot;. The lower the ESR, the lower the loss, the higher the output current, and the higher the quality of the capacitor.

Reasons why converters do not meet the requirements or become non-compliant with technical specifications.

It is an electrostatic shield that reduces the capacitance between the primary and secondary windings. This shield reduces the common-mode noise and transient amplitude caused by passing through the transformer.

The input current absorbed by the converter when the output is short-circuited.

The Federal Communications Commission (FCC) is an independent agency of the United States government that regulates communications by radio, television, wire, satellite, and cable across the United States. The FCC maintains jurisdiction over the areas of broadband access, fair competition, radio frequency use, media responsibility, public safety, and homeland security.

By directly detecting the input voltage of the converter to improve the voltage stability performance, the system can be processed according to the predicted information before deviation occurs.

The output or input pin of the circuit didn’t link together, resulting in unexpected results, so that the circuit or program inexplicable output or even crashed.

The flyback converter is a power supply topology that uses mutually coupled inductor, to store energy when current passes through and releasing the energy when the power is removed. It has simple structure, low cost, is the commonly used industry architecture.

It is similar to constant-current control, the voltage decreases as the load resistance goes to zero, and the current decreases.

Use a fan to force air circulation to dissipate heat.

When the switching tube is closed, the positive excitation mainly relies on the energy storage inductance and the flyback diode to maintain the output, and the transformer does not store energy.

The instantaneous maximum power that the