2results about How to "Reduced DC power consumption" patented technology

The utility model discloses an electrolytic bath anode liquid cut-off device belongs to metal electrolytic smelting equipment technical field. The device includes collection box, liquid level detection unit and electric control cut -off unit, the collection box is located electrolytic bath anode liquid chute mouth right below, is used for receiving and temporarily storing the anode liquid of overflow, and its tank bottom is equipped with drain port, anode liquid chute one end is connected the chute mouth, and the other end extends to the inside of collection box, the electric control cut -off unit is equipped in the pipeline of drain port, liquid level detection unit is equipped in collection box, is used for monitoring the liquid level in the box, and can reach the output control signal to electric control cut -off unit when liquid level reaches the preset height, drives it to open to discharge the hydrops. The utility model through intermittent type automatic discharge anode liquid, effectively destroys the conductive liquid bridge formed between chute mouth and chute, fundamentally cuts off the current bypass, has the advantages such as simple structure, high degree of automation, energy -conserving effect is remarkable and the advantage such as low reformation cost.

The application provides an electrically small antenna broadband matching circuit, a printed circuit board, an active antenna and a device. The electrically small antenna broadband matching circuit comprises a field effect transistor, a direct current power supply module, a first biasing module, a second biasing module and a third biasing module. The drain of the field effect transistor is used as an output end of the electrically small antenna broadband matching circuit and is connected with a transmission line. The gate of the field effect transistor is used as an input end of the electrically small antenna broadband matching circuit and is connected with an output end of the electrically small antenna. The first biasing module is connected with the direct current power supply module. The first biasing module, the second biasing module and the third biasing module are used for direct current biasing of the field effect transistor in an ohmic region with a preset output impedance. The field effect transistor is used for amplifying a signal input by the electrically small antenna and performing impedance matching with the transmission line. The scheme provided by the application reduces the power consumption of the electrically small antenna matching circuit.