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A microphone or other device can obtain DC power from either signal line to ground terminal, and two capacitors block this DC from appearing at the output. R1 and R2 should be 6.81k ohms for "P48" 48-volt phantom. R3–6 and Zener diodes 1–4 deliberately clip the outputs to ±10v to protect a subsequent circuit from potentially large transients.
In the broadcast, film, and television industries, the 4-pin XLR connector is the standard for 12 V power. The connectors are wired pin 1 negative, pin 4 positive. Often pins 1 and 2 will be negative, 3 and 4 positive for a higher current rating. Female connectors are used as supply and male connectors are used on loads.
In 20/24-pin configurations, the Mini-Fit Jr. connector (Molex Mini-fit Jr. 39-28-1203, [7] former 5566-20A or 39-28-1243, [8] former 5566-24A) may be used on ATX motherboards as the main power connector. The same style of connector, in single or paired 4-, 6-, or 8-pin configurations, may be used for additional CPU power and graphics card ...
Common DC power connectors ... GND pin and inner is V n+ is a voltage supply pin, where n voltage is 5V, 12V, 24V etc.. ... V5 adapter and some Hikvision 48V NVRs 5. ...
Examples of such systems include modern cell phones, with GND and voltages such as 1.2 V, 1.8 V, 2.4 V, 3.3 V, and PCs, with GND and voltages such as −5 V, 3.3 V, 5 V, 12 V. Power-sensitive designs often have multiple power rails at a given voltage, using them to conserve energy by switching off supplies to components that are not in active use.
The 13-pin version being phased in is newer, provides more services than the 7-pin, a more positive locking and also better protection against moisture and contamination. The connectors are designed for 12V systems. Exceptions for the 7-pin connector may exist where they may be used for 6V and 24V.
After extensive preparatory work, resulting in the "List of Loads in the Automobile of the Year 2005", various automotive electrical system architectures were compared using the tool "MAESTrO" (12 V, 12 V/24 V DC, 12 V/48 V DC and 12 V/60 V AC) in the September 1995 workshop at the Massachusetts Institute of Technology (MIT/LEES). The finding ...
5V - 12V DC 1408 Kb 164 Kb 16 6 6 168 MHz 32-bit ARM7 microcontroller board with support for the .NET Micro Framework. Pin compatible with Arduino shields although drivers are required for some shields. [251] Netduino N3 WiFi [251] Wilderness Labs [251] Yes Cortex-M4 (STM32F4) ARMv7E-M 168 MHz Arduino 69mm x 53mm USB 5V - 12V DC 1408 Kb 164 Kb ...