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AFAIK there is no such requirement (no EU law mentioning it). The most relevant piece of EU legislation I know of is here in its consolidated version. There may be other relevant legislation I don't know about; I am not a lawyer 8-).


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A reverse current ultimately manifests as current flowing the wrong way through the power input terminals. But there is a difference between whether this is being caused by the voltage at the inputs being applied in reverse or whether the load itself is trying to push power back towards the supply. The diode D1 will block any currents from flow through it ...


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The device is a "\$\color{green}{\text{green-chip}}\$": - The TEA18362T is a controller IC for low-cost Switched Mode Power Supplies (SMPS). It is intended for flyback topologies. The built-in \$\color{green}{\text{GREEN}}\$ functions provide high efficiency at all power levels. And, if you read this document by Texas Instruments entitled: - Green-...


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PMIC, per the answer from @crasic. Any device (e.g. microcontroller) that has a zero-power or near-zero power sleep mode. For example Microchip offers parts with sleep currents in the nA range. (Just use an interrupt pin to wake back up.) Processor will control power to the rest of the circuit. A discrete solution is a circuit that I've heard called a "...


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I think your best bet is to start with a breadboard and jumpers. Look for schematics on the internet of designs similar to yours and mostly copy them, making changes as necessary to adapt to your application. Buy the components from mouser or digikey. Make sure to get through-hole parts. Check out sites like sparkfun and adafruit for "friendlier" (...


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for industrial devices below 3680W or 16A a main power switch is optional. So far I don't know - like ocrdu said in his answer - any rule for commercial grade devices. if no other standard applys, network equipment should not require a power switch


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Reset/power controller IC , in marketing speak "Power Management IC" PMIC is a common approach, for a large cellphone mfg this may be a custom chip with bespoke features for their product and to support extended button features and signals In the most common case these ICS allow configuration of reset sources and inputs. They also manage the order of how ...


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It's probably better to start with an example of what output discharge function can be used for. Let's say you have a low-power transmitting circuit (eg. sending data to a receiver/reading device) powered by a 5V source. You added a bunch of decoupling capacitors close to the device to make sure the power is stable. Whenever this 5V power source is "turned-...


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A few readymade solutions. Finally, it depends more on factors other than price and size, depending on use case. one from ST: One from TI: from Maxim (LDO plus logic)


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Lithium batteries need both charge control and discharge control. The charge controller will do half the job. But what is protecting your batteries from being overly discharged? What if the speaker gets left in the on state with no signal, so it's silently discharging the batteries?


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Don't get confused! RPM is the rotation speed measure. Rotation speed is proportional to the Electormotion Force, which is voltage (Volts), not power (mW). Power is voltage times current (A) . What current will your generator provide? Well, in wide range, it will be the exact current you take, nothing more, nothing less. That's it. If you come closer to ...


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6uA typ or even 20 uA max is not much “power”. The Maxim IC’s you selected are designed for 5V logic only/ If you need high voltage low Quiescent current switches, you can choose MOSFETs or BJT’s to suit your task and choose low side switching for logic level drive. If you define all your specs, for input and output V,I etc. Then you can start your ...


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Power Management That diagram is in the section of the slidedeck where they're talking about power management is stating that the energy efficiency for System's on a Chip (SoC) will behave inversely proportional to the frequency of the CPU as it increases. Power spectral density is inversely proportional to the frequency of the signal. This diagram might ...


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