HR1001CGS

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The HR1001CGS is an AC-DC switching converter specially designed for offline power supply applications and can provide up to 1 Amp of load current with a 4.5V to 24V wide input voltage range. This converter is suitable for applications such as adapters, switched-mode power supplies (SMPS), Personal Computers (PCs),and consumer electronic products. It features low startup current, low stand by power, low output ripple noise, low cost and high efficiency.

The working principle of the HR1001CGS is relatively simple. The input voltage is rectified using a full-bridge rectifier that charges the input capacitor. This capacitor acts as a power storage buffer in case the AC mains drops out. The rectified input voltage is then regulated using an Active Clamper circuit, which is connected to a power MOSFET, which then conducts and sends power to the output. The AC mains permanently charges the input capacitor to ensure a ripple free, regulated output voltage is maintained even when the AC mains drops out.

The output voltage is provided by an LM2577 or similar PWM IC, controlled by the On-off signal from the active clapmer controller. The output voltage is then filtered using an inductor, capacitor and rectifier, which improves the output voltage ripple significantly. In addition to that, a secondary winding on the transformer is used for the 5V standby voltage, which is triggered by the power-good signal from the 5V standby regulator.

The HR1001CGS also carries a practical wide range of protection features, like overload, short circuit protection, over temperature, overvoltage, undervoltage and dark green, which help ensure system safety. Its active power-down mode also help improve efficiency and reduce system power consumption. All these features combine to make the device a highly reliable, low cost and power efficient solution.

The HR1001CGS is an ideal offline power supply solution due to its wide input range, low cost, high efficiency and reliable protection features. Its ability to handle a maximum load current of 1 Amp and its very low standby power makes it ideal for portable applications like adapter and power banks, making it the perfect choice for AC-DC power supply applications.

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