5results about How to "Reduced DC power consumption" patented technology

The invention discloses a single-ended reading circuit, a memory and a reading method thereof, which are used for reading storage data in a storage unit, and the single-ended reading circuit comprises a voltage drop amplifier, a signal input end and a signal output end, the voltage drop amplifier comprises a first PMOS tube and a first NMOS tube. The source electrode of the first PMOS tube is suitable for receiving power supply voltage, the grid electrode of the first PMOS tube is connected with the drain electrode of the first NMOS tube, the signal input end and the signal output end, and the drain electrode of the first PMOS tube is connected with the grid electrode of the first NMOS tube; and the source electrode of the first NMOS tube is grounded.

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 invention belongs to the technical field of non-ferrous metal hydrometallurgy, and particularly relates to a zinc hydrometallurgy electrolytic bath which specifically comprises a liquid supply chute. The inner and outer liquid inlet chutes comprise an inner liquid inlet chute and an outer liquid inlet chute which are respectively communicated with the liquid supply chute; the tank body comprises an inner electrolytic tank and an outer liquid separation tank which are arranged in a sleeving manner, and an in-tank flow division device is arranged on the inner electrolytic tank; the electrolyte overflow device is in a hollow cuboid shape, is arranged at the upper end of the side wall of the inner electrolytic cell and is opposite to the side where the inner and outer liquid inlet chutes are located, and electrolyte overflows from the bottom of the inner electrolytic cell from bottom to top through the electrolyte overflow device; the anode mud gathering device is positioned at the bottom of the tank body; and the calcium-magnesium crystallization plate is hung in the inner electrolytic bath and is close to the inner and outer liquid inlet chutes. The electrolytic cell can obviously improve the flowing condition of electrolyte in the cell, so that the electrolyte is uniform in component in the cell, especially the concentration polarization phenomenon at the bottom is eliminated, the short circuit condition at the bottom is effectively reduced, the chemical quality of the zinc sheet is improved, and the whole electrolytic process is more economical and stable.

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.

The present invention relates to the technical field of electrolytic aluminum, and provides a production control method for an aluminum electrolytic cell with a fully graphitized cathode. The present invention adopts an electrolytic production energy balance management mode based on the characteristics of low resistance and high heat dissipation of the fully graphitized cathode, determines the process technology standards based on the electricity income and heat energy expenditure, and maintains the energy balance relationship of the electrolytic production; during the normal production period of the electrolytic cell, the present invention adopts the "five lows and one high" control standard of "low voltage, low aluminum level, low molecular ratio, low alumina concentration, low furnace bottom pressure drop, and high electrolyte level", which can stabilize the electrolytic production and reduce the DC power consumption. Industrial experimental verification shows that by using the method of the present invention to control the production process of the fully graphitized cathode aluminum electrolytic cell, the current efficiency can reach 93.5%, and the DC power consumption is below 12300kWh / t.Al, which can achieve better economic and technical indicators, achieve the goals of reducing energy consumption and reducing carbon emissions, and has good promotion value and application value.