摘要:
An electronic apparatus wherein an abnormal control routine of the control unit can be prevented, or an abnormal control routine that has been started by the control unit can be rapidly halted is provided. An electronic apparatus having a control unit, peripheral circuits whose operations are controlled by the control unit, and a rechargeable battery for feeding operation power to the control unit and the peripheral circuits, wherein an initialization signal RT4 is continuously output to the control unit during a period of time (during time t1 to t4) that the voltage fed to the control unit is equal to or less than the voltage V1 for assured operation of the control unit, and is equal to or greater than the start voltage VX for starting the operation of the control unit.
摘要:
To provide an electronic unit which can prevent brake control from stopping a generator. An electronically controlled mechanical timepiece, which is an electronic unit, includes a generator 2 driven by a coil spring 1 to generate electric power, and a rotation control unit 50 driven by electric energy of the generator to control the rotation period of the generator 2. The rotation control unit 50 is provided with a brake control unit 55 for comparing a reference signal fs with a rotation-detection signal FG1 corresponding to the rotation period of the generator 2 to apply brake control to the generator 2, and a generator-stop preventing unit 56 for setting the amount of brake to be applied to the generator 2 to a first brake setting value to prevent the generator 2 from being stopped, when the rotation period of the generator 2 is equal to or longer than a first setting period which is longer than a reference period. When the rotation period of the generator 2 becomes long, the generator 2 is controlled by the first brake setting value. The first brake setting value is a small amount of braking, such as zero, and can prevent the generator 2 from being stopped.
摘要:
A composition comprising metal oxide particles having photo-catalytic activity, a solvent-soluble zirconium compound and a solvent. Preferably, the metal oxide particles having photocatalytic activity are titanium oxide particles; the metal oxide particles have an average particle diameter of about 0.005 to 0.3 &mgr;m; and the amount of the zirconium compound is in the range of about 3-200 parts by weight, as ZrO2, per 100 parts by weight of the metal oxide articles. A composite of a film having a photo-catalytic activity with a base material is made by coating the base material with the above composition to form a film, and curing the film on the base material.
摘要:
A surface layer of an anode body containing niobium is converted into a dielectric layer by a method for a chemical formation, which comprises step I of electrolytically forming an anode body comprising niobium in a chemical forming solution containing nitric acid and phosphoric acid at a temperature within a range from 40° C. to a boiling point of the chemical forming solution, step II of heat-treating the electrolytically formed anode body at a temperature within a range from 150° C. to 300° C., and step III of electrolytically forming the heat-treated anode body in a chemical forming solution containing nitric acid and phosphoric acid at a temperature within a range from 40° C. to a boiling point of the chemical forming solution. A cathode is formed on the dielectric layer to obtain a solid electrolytic capacitor element, and the element is sheathed to obtain a solid electrolytic capacitor.
摘要:
A power supply apparatus 11 and a storage device 12 that stores power supplied by the power supply apparatus 11 interpose a power supply control circuit 10. The circuit has a charging current detector 13 to detect charging current IC flowing from the power supply apparatus 11 to the storage device 12; a blocking unit 15 to interrupt the backflow current IR that flows from the storage device to the power supply apparatus on the basis of an inputted blocking control signal SH; and a backflow monitoring unit 14 to monitor by sampling for the presence of the charging current IC until the charging current IC is detected, constantly to monitor for the presence of the charging current IC after the charging current IC has been detected, and to output a blocking control signal SH for cutting off the backflow current IR when the charging current IC is not flowing.
摘要:
A power supply apparatus 11 and a storage device 12 that stores power supplied by the power supply apparatus 11 interpose a power supply control circuit 10. The circuit has a charging current detector 13 to detect charging current IC flowing from the power supply apparatus 11 to the storage device 12; a blocking unit 15 to interrupt the backflow current IR that flows from the storage device to the power supply apparatus on the basis of an inputted blocking control signal SH; and a backflow monitoring unit 14 to monitor by sampling for the presence of the charging current IC until the charging current IC is detected, constantly to monitor for the presence of the charging current IC after the charging current IC has been detected, and to output a blocking control signal SH for cutting off the backflow current IR when the charging current IC is not flowing.
摘要:
An aqueous dispersion of titanium oxide particles comprising chloride ion, and a Brønsted base other than chloride ion, preferably at least one kind of ion selected from nitrate ion and phosphate ion. Preferably the titanium oxide particles are predominantly comprised of brookite titanium oxide particles. The aqueous titanium oxide dispersion is prepared by hydrolyzed titanium tetrachloride in the presence of at least one kind of a Brønsted acid. A thin film formed from this aqueous titanium oxide dispersion exhibits good photo-catalytic activity, transparency and adhesion to a base material.
摘要:
An electronically controlled mechanical timepiece, which is an electronic device, is equipped with a generator 2 for converting the mechanical energy transmitted from a mainspring through the intermediary of a wheel train into electrical energy, and a rotation control unit for controlling the rotation cycle of the generator 2. The rotation control unit is equipped with a count-up/down counter 60 that compares a reference signal with a rotation detection signal of the generator 2 thereby to adjust a braking time for the generator 2, and a brake control signal generating circuit 81 that corrects the time set at the count-up/down counter 60 on the basis of the rotation cycle of the generator 2. If the rotation cycle of the generator 2 significantly deviates from a reference signal cycle, then the braking time is adjusted on the basis of the rotation cycle. Therefore, optimum brake control can be conducted, a secure and sufficient brake amount can be provided, and the responsiveness in speed control can be enhanced.
摘要:
With respect to a generator (20), a storage device (22) for storing electrical energy output from the generator and a bypass circuit (31) are connected in parallel with each other. A bypass circuit switch (33) of this bypass circuit (31) is controlled on and off according to the voltage of the storage device (22). This makes it possible to reduce the input current into the storage device so as to implement a reduction in the voltage of the storage device, thereby preventing overcharging. Moreover, since a generated waveform corresponding to the rotation period of the generator can be obtained, the rotation period of the generator can be controlled highly precisely and reliably based on this generated waveform, thereby implementing the indication of the correct time.
摘要:
The present invention relates to a method for producing a niobium solid electrolytic capacitor using niobium as an anode body, which comprises a step of chemically converting the anode, wherein the chemical conversion step comprises a first chemical conversion step of forming a chemical conversion coating of the anode, a step of heating the anode body having been subjected to the first chemical conversion step, and a second chemical conversion step of once again chemically converting the heated anode body; wherein electrolytic chemical conversion is performed in the first chemical conversion step and the second chemical conversion step using a chemical conversion liquid, which contains a metal nitrate salt as an electrolyte, at a temperature from 40° C. to the boiling point of the solvent; and wherein the heating step is performed at a temperature of 150 to 300° C. The method for producing a niobium solid electrolytic capacitor of the present invention can increase the stability of an oxide film which functions as a dielectric body and prevent increase in leakage current, thereby improving the yield and reliability in the method for producing a niobium solid electrolytic capacitor.