Many people like to distinguish on the appearance: say the high-grade power supply even if it is scratchy appearance, his texture and brightness is different because it is a new fireproof plastic material injection molding. And the low-grade appearance does not look shiny feeling grey and gray. It is made of recycled plastic, not to mention correct or not, and in fact the appearance is more important for us to look at its insulation and resistance to burning and corrosion. Aesthetics are only one of the items of reference and in fact you can look at the material and plating of the metal parts. The exposed metal of many high-end power supplies is copper plated with nickel, or the thickness of the plating will be thicker and brighter Sometimes you will find that the mobile phone chargers bought for a few dollars outside do not take long to rust on the plug, while the original chargers for branded mobile phones are used for a long time without the phenomenon of rust. It is because, many high-end power management ICs do power adapters do salt spray treatment. And some of the low-end ones do not do the corresponding treatment
If you think this is the way to judge the high and low end of power adapters?
No, that's just what the amateurs say, and as for the truth-seeking partners, they don't stop there! Because the biggest difference between them is the power adapter controller to distinguish the low-end power adapter, the charger is generally used with a triode solution, it does not have an integrated IC to control, it is just a transformer and triode self-excited oscillation. Some very low-grade chargers even only have a rectifier diode, and then the filter capacitor may not even be there, or there is a small electricity only a rectifier diode, there is no photoelectric coupling components and voltage regulator IC. no fuse in front. There is no safety guarantee and the radiation is high and poses a threat to human health. Some manufacturers do some high current fast charging solutions, then use relatively high energy consumption power supply module to control the drive, energy consumption is huge, heat generation is large, and overheating performance is worrying, very test power supply system. In high-end power adapters, generally use highly integrated power supply integrated circuits, high power efficiency in the power supply system, the circuit has perfect protection measures (covering over-current. Over-voltage. Over temperature), the power supply has built-in over short circuit protection, the product will be automatically protected when the load is short circuit or overload. Lightweight and easy to carry, replacing traditional transformers. The product is enclosed and sealed, waterproof and moisture-proof, suitable for various environments; convenient wiring: the product is equipped with input and output connection lines or terminals, the identification on the product nameplate "INPUT" is the power input terminal, access to the corresponding mains power; "OUTPUT" is the power output terminal, connected to the corresponding use of electrical appliances, output "+ " is connected to the positive end of the appliance, the output "-" is connected to the negative end of the appliance. There are also conventional DC connectors, airline connectors, waterproof connectors, polarity connectors and pin connectors (also available on request).
As the core component of the power adapter, the power controller, Mauit Semiconductor's AC-DC power management IC M6362B is a minimum 75mA standby power consumption, meets the latest Class 6 energy requirements, has high OTP over temperature protection and is based on the industry's highest tolerance. With a full power output mechanism of 100W, it is capable of full seat portable electronic devices high-speed fast charging requirements, based on the M6362B role in high performance, low standby power consumption, can greatly reduce the production cost of power adapters, in this at the same time can give ac-DC power adapters and DC-DC class power adapters to provide a full load of 65KHZ full power output performance program, M6362B as The M6362B, as a newly developed high conversion type highly integrated power management IC chip in 2019, is newly designed and provides more accurate circulating current limit (OCP), high precision overload protection (OLP), extremely accurate voltage lockout (uvlo) protection, and the application of the new patented level over temperature protection (otp) authorization level technology, which can be used in highly accurate over voltage protection (OVP) and other automatic recovery. The M6362B offers the best EMI immunity available for AC-DC power adapters and DC-DC power adapters.
