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link zero ax
LinkZero-AX ICs provide a very simple circuit for controlled power-down and wake-up. But because this method doesn’t use any relay circuits, the AC supply is always connected to the entire system, including the auxiliary power supply and EMI filter. A typical appliance circuit may use X-capacitor discharge resistors in the EMI filter, and line sense resistors for the microcontroller. These resistors are a constant load on the input, even during the off-mode, increasing standby consumption. For the lowest possible standby power, CAPZero and SENZero devices should be used to disconnect the discharge resistors and sense resistors when not in use.
PTM Published on: 2011-11-23