Mao Jie high precision original feedback LED constant current dimming control drive scheme

M8920 is a single stage, high-precision primary feedback LED constant current dimension control drive, supports a variety of dimming patterns, and can be applied to 85VAC-265VAC full range input voltage flyback isolation or Lifting pressure type non - quarantined LED constant current power supply. The M8920 integrated active power factor correction circuit can achieve high power factor and low total harmonic distortion. Since the operation in the inductor current critical continuous mode, the power MOS tube is in a zero current, the switching loss is reduced, and the utilization rate of the transformer is also high. The M8920 uses a proprietary current sampling mechanism to operate in the original feedback mode, which can achieve high-precision output constant current control, saving system cost and volume, and improves system reliability. The M8920 uses a patented line voltage and load compensation technique to achieve excellent line voltage adjustment rate and load adjustment rate. The line voltage compensation coefficient can also be flexibly adjusted by external components. Mode: 1,2.4g WiFi Bluetoothzigbee Dali 2,0-10v 3, adjustable resistor 4, infrared induction module acoustic sensor sensor sensor Main dimming advantages: Isolated within 80W, high P OTP protection features external adjustable High constant current accuracy, single 1%, batch 3% Compatible with 0-10V, PWM dimming signal CRM operating mode, high efficiency Design PCB line Dimming power source Melie Semiconductor is a special IC design domestic power supply IC chip company that specializes in pure analog circuits and digital-to-mode mixed integrated circuits. The company's senior R & D team combines the industry's advanced design technology with the local advantage industry chain in the Asia-Pacific region, serving the global market, providing customers with high efficiency, low-power, low risk, low cost, green product programs and services. Helps the development of the charger, adapter, lighting, lithium battery charging, sensor, audio amplifier, small power appliances, and other industries. , Read the full article, original title: Mao Jie adjustable LED driver Article Source: [Micro Signal: Mojay_Semi, WeChat public number: Maojie semiconductor] Welcome to add attention! Please indicate the source of the article.

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