36results about How to "Voltage variation" patented technology

A small-sized and low-cost phase detection circuit which has improved noise immunity. The phase detection circuit comprises a multiplier for multiplying an input signal by a reference signal and outputting a first signal, an integration circuit for integrating the first signal and outputting a second signal, a phase estimation circuit for estimating phase information based on the second signal, and a reference signal generation circuit for generating the reference signal based on the estimated phase information. Since the phase is detected based on information representing an entire waveform, the influence of local noise can be diluted and noise immunity can be improved.

The present invention is a method for balancing voltages of a serially connected plurality of cells in a battery pack provided with the plurality of cells. In this method, the voltages are balanced by: connecting a pair of a resistor and a switch, which are serially connected with each other, in a parallel relationship to one of the plurality of cells; switching the switch from an open state to a closed state when a voltage of the one cell increases to a prescribed balance operation starting voltage; and maintaining a state where the cell is charged by a voltage of the same magnitude as a voltage that is applied to both ends of the pair after switching of the switch to the closed state.

A liquid lens includes a vessel having an inner wall and configured to contain liquid, an electrolyte liquid and a non-electrolyte liquid forming an interface therebetween and being contained in the vessel, and a voltage applying unit which applies a voltage to the electrolyte liquid. A shape of the interface between the electrolyte liquid and the non-electrolyte liquid is changed by application of the voltage. The inner wall of the vessel has varying affinity with the non-electrolyte liquid depending on a position on the inner wall where an end of the interface contacts the inner wall; and the affinity on the side of the inner wall where the non-electrolyte liquid is situated is lower than the affinity on the side of the inner wall where the electrolyte liquid is situated.

A liquid crystal display (LCD) device improves an aperture ratio and stabilizing a storage voltage, including a first substrate; a second substrate opposed to the first substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line and a data line on the first substrate; a semiconductor layer overlapping the gate line; a first drain electrode overlapping the gate line and the semiconductor layer and connected to the data line; a first source electrode overlapping the gate line and the semiconductor layer; a first sub-pixel electrode connected to the first source electrode; a second drain electrode overlapping the gate line and the semiconductor layer and connected to the first drain electrode; a second source electrode overlapping the gate line and the semiconductor layer; and a second sub-pixel electrode connected to the second source electrode. The second source electrode overlaps the gate line more than the first source electrode does.

A passive-matrix display of the disclosure includes a first electrode disposed over a substrate, a second electrode disposed over the first electrode and three-dimensionally intersecting the first electrode, a first auxiliary electrode disposed between the substrate and the first electrode, three-dimensionally intersecting the first electrode and being parallel to the second electrode, and a second auxiliary electrode parallel to the first auxiliary electrode and to the second electrode, the first electrode and the first auxiliary electrode being electrically connected by a first connection portion, and the second electrode and the second auxiliary electrode being connected by a plurality of second connection portions each disposed with at least one of the first electrodes therebetween. The passive-matrix display enables voltage drop and variation in brightness to be reduced by lowering the wiring resistance of the second electrode.

A semiconductor device is provided. The device comprises discharge units each including a discharge element and a driving unit configured to drive the discharge element, and a terminal unit configured to supply power to the discharge units via a wiring line. The discharge units include a first discharge unit including a first discharge element of the discharge elements and a first driving unit of the driving units and a second discharge unit including a second discharge element of the discharge elements and a second driving unit of the driving units. A length of a current path from the terminal unit to the first discharge unit is longer than a length of a current path from the terminal unit to the second discharge unit and a resistance of the first driving unit is lower than a resistance of the second driving unit.