The cable may power the respective streamer and the one of the marine vibrators.

The extracted electrical power is used for electrically powering one or more components of the electronic device.

In the wiring tube is placed a cable for supplying electric power to the drive mechanism.

The network connection apparatus includes a bus connected to the at least one power interface, and a power supply electrically connected to the bus to supply power to the at least one power interface.

The power supply module (101) is used for supplying power to the microcontroller (106) and the disinfection module (107).

Moreover, the composite device includes a device power supply unit (800) for independently supplying power to these units.

A power source, such as a battery is provided in the housing to supply electric energy to all the electronic components of the device.

An output contact element (24) for electrically supplying each of the electric motors is assigned to each of the contact groups (21).

Battery pack (104) is removably mounted in the body for providing power to the receiver and motors therein.

The second PSE control module is used to supply power to the second PD control module through the second power supply circuit.

The first PSE control module is used to supply power to the first PD control module through the first power supply circuit.

The power supply module (105) is used for supplying power to the input device (101), the processor (102), the Bluetooth module (103) and the sending unit (104).

In addition, the sensor (1) includes energy collection means (8) for collecting electromagnetic energy from the source (14) and electrically powering the sensor (1).

An ambulatory infusion device (1) comprises a replaceable energy storage (10) for electrically powering its functional units (14, 14').

The power supply may be configured to supply power to the oscillator as a function of the amplitude or frequency of the oscillating signal to improve power efficiency.