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2. Switched-mode power supply - Wikipedia

   en.wikipedia.org/wiki/Switched-mode_power_supply

   Stand-alone switched-mode power supply An adjustable switched-mode power supply for laboratory use. A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.

3. RF power amplifier - Wikipedia

   en.wikipedia.org/wiki/RF_power_amplifier

   A common trade-off in power amplifier design is the trade-off between efficiency and linearity. The previously named classes become more efficient, but less linear, in the order they are listed. Operating the active device as a switch results in higher efficiency, theoretically up to 100%, but lower linearity. [ 2 ]

4. Power amplifier classes - Wikipedia

   en.wikipedia.org/wiki/Power_amplifier_classes

   In electronics, power amplifier classes are letter symbols applied to different power amplifier types. The class gives a broad indication of an amplifier 's characteristics and performance. The first three classes are related to the time period that the active amplifier device is passing current, expressed as a fraction of the period of a ...

5. Combined Charging System - Wikipedia

   en.wikipedia.org/wiki/Combined_Charging_System

   CCS1 (Combined Charging System Combo 1) plug as used in North America. It is an extension of the J1772 standard AC charging connector. CCS Combo 1 vehicle inlet showing the J1772 and the two DC fast-charging pins Connectors: Incomplete Combo 2 (left) showing the two large direct current (DC) pins below, while the four alternating current (AC) pins for neutral and three-phase are removed, while ...

6. Charge amplifier - Wikipedia

   en.wikipedia.org/wiki/Charge_amplifier

   Charge amplifier for piezoelectric sensors. Practical charge amplifiers usually include additional stages like voltage amplifiers, transducer sensitivity adjustment, high and low pass filters, integrators and level monitoring circuits. The charge signals at the input of a charge amplifier can be as low as some fC (FemtoCoulomb = 10 −15 C). A ...

7. Push–pull output - Wikipedia

   en.wikipedia.org/wiki/Push–pull_output

   A class-B push–pull amplifier is more efficient than a class-A power amplifier because each output device amplifies only half the output waveform and is cut off during the opposite half. It can be shown that the theoretical full power efficiency (AC power in load compared to DC power consumed) of a push–pull stage is approximately 78.5%.

8. Here’s why Apple’s charger switch is such a big deal - AOL

   www.aol.com/finance/usb-c-why-apple-charger...

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9. GB/T charging standard - Wikipedia

   en.wikipedia.org/wiki/GB/T_charging_standard

   In Mode 3, power is supplied with a current of 16/32/63A and voltage of 440V. [6] Although the seven-pin interface is capable of passing three-phase AC power, the current implementation is limited to single-phase power. [2] In general, charging speeds are also limited by the vehicle's on board charger, which is usually less than 10 kW.