Abstract: A voltage converter circuit, comprising: a bridge rectifier; a first transistor, having a first end, a second end and a third end; a second transistor, having a first end and a second end; wherein the first end of the first transistor and the first end of second transistor are electrically connected to bridge rectifier, and the second end of the first transistor is electrically connected to the first end of the second transistor; and a Zener diode, connected between the third end of the first transistor and the second end of the second transistor.

Abstract: A light emitting apparatus includes a housing, a connector, a light source, a control module board, and an antenna. The housing includes an inner space. The light source is located in the inner space. The control module board is located in the connector, wherein an accommodation space is formed by the housing and the control module board. The antenna is located in the accommodation space.

Abstract: A light emitting apparatus includes a housing, a connector, a light source, a control module board, and an antenna. The housing includes an inner space. The light source is located in the inner space. The control module board is located in the connector, wherein an accommodation space is formed by the housing and the control module board. The antenna is located in the accommodation space.

Abstract: A voltage converter circuit, comprising: a bridge rectifier; a first transistor, having a first end, a second end and a third end; a second transistor, having a first end and a second end; wherein the first end of the first transistor and the first end of second transistor are electrically connected to bridge rectifier, and the second end of the first transistor is electrically connected to the first end of the second transistor; and a Zener diode, connected between the third end of the first transistor and the second end of the second transistor.

Abstract: An electronic device includes a top carrier having a first top surface and a first bottom surface, a first electronic element formed on the first top surface, a second electronic element formed on the first bottom surface, a bottom carrier below the top carrier and having a second top surface near the top carrier, and a controller formed on the second top surface.

Abstract: An electronic device includes a top carrier having a first top surface and a first bottom surface, a first electronic element formed on the first top surface, a second electronic element formed on the first bottom surface, a bottom carrier below the top carrier and having a second top surface near the top carrier, and a controller formed on the second top surface.

Abstract: An LED driver for driving a light-emitting device (LED) includes a bridge rectifier, a current driver, and a protection circuit. The bridge rectifier includes a rectifying diode, and the bridge rectifier receives and converts an AC input power source to a DC power source having a DC current and a DC voltage. The current driver includes a constant current source. The bridge rectifier, the current driver, and the protection circuit are connected in series, and the constant current source is used to limit the magnitude of the direct current to drive the LED. The protection circuit includes a protection unit. The protection circuit connects the current driver and the LED. The LED includes a substrate and the rectifying diode, the constant current source, and the protection unit are formed together on the substrate.

Abstract: A temperature-controlled power supply system is disclosed. The temperature-controlled power supply system comprises a power source, for supplying input power; a rechargeable battery module, for receiving the input power for power storage; a charging unit, coupled between the power source and the rechargeable battery module, for charging the rechargeable battery module with the input power; a temperature sensing unit, coupled to the rechargeable battery module, for sensing a temperature of the rechargeable battery module; and a current control unit, coupled to the temperature sensing unit and the charging unit, for controlling a current for charging the rechargeable battery module according to the temperature of the rechargeable battery module.

Abstract: A configurable power supply system is disclosed. The configurable power supply system comprises a power source for providing input power, a switch, coupled to the power source, for enabling a bypass path for outputting the input power to an output node as an output power when turned on; a rechargeable battery module for storing the input power for outputting a battery power; a charging unit, coupled between the power source and the rechargeable battery module, for charging the rechargeable battery module with the input power; a converting unit, coupled to the rechargeable battery module, for converting the battery power to generate the output power; and a control unit, coupled to the switch, the charging unit, and the converting unit, for controlling functions of the switch, the charging unit, and the converting unit.

Abstract: An apparatus for measuring a remaining power of a battery unit includes a first memory unit, a second memory unit, and a processor. The first memory unit stores a first program code. The second memory unit stores a second program code. The second memory unit is accessed at a second speed that is lower than a first speed at which the first memory unit is accessed. The processor is utilized for reading the first program code from the first memory unit to execute calculation for current of the battery unit during a normal operation mode and reading the second program code from the second memory unit to execute an exception during the normal operation mode if required.

Abstract: A method for calculating electrical charge/discharge quantity for a battery unit includes: utilizing an oscillator for generating a clock signal; providing a storage unit for storing a calibration parameter that is used for adjusting or calibrating a time interval of electrical charge/discharge calculation; determining when to generate an interrupt signal to a controller according to the clock signal and the calibration parameter; and measuring a current associated with the battery unit and calculating the electrical charge/discharge quantity for the battery unit when the interrupt signal is generated.

Abstract: A configurable power supply system is disclosed. The configurable power supply system comprises a power source for providing input power, a switch, coupled to the power source, for enabling a bypass path for outputting the input power to an output node as an output power when turned on; a rechargeable battery module for storing the input power for outputting a battery power; a charging unit, coupled between the power source and the rechargeable battery module, for charging the rechargeable battery module with the input power; a converting unit, coupled to the rechargeable battery module, for converting the battery power to generate the output power; and a control unit, coupled to the switch, the charging unit, and the converting unit, for controlling functions of the switch, the charging unit, and the converting unit.

Abstract: A temperature-controlled power supply system is disclosed. The temperature-controlled power supply system comprises a power source, for supplying input power; a rechargeable battery module, for receiving the input power for power storage; a charging unit, coupled between the power source and the rechargeable battery module, for charging the rechargeable battery module with the input power; a temperature sensing unit, coupled to the rechargeable battery module, for sensing a temperature of the rechargeable battery module; and a current control unit, coupled to the temperature sensing unit and the charging unit, for controlling a current for charging the rechargeable battery module according to the temperature of the rechargeable battery module.

Abstract: An apparatus for measuring a remaining power of a battery unit includes a first memory unit, a second memory unit, and a processor. The first memory unit stores a first program code. The second memory unit stores a second program code. The second memory unit is accessed at a second speed that is lower than a first speed at which the first memory unit is accessed. The processor is utilized for reading the first program code from the first memory unit to execute calculation for current of the battery unit during a normal operation mode and reading the second program code from the second memory unit to execute an exception during the normal operation mode if required.

Abstract: A method of accessing data from distributed field equipments by a host through a set of intelligent network gateways is disclosed. The intelligent network gateways link the host on a local area network to the field equipments that are connected to a control network. Initially, configuration software residing in the host is employed to install the intelligent network gateways and the field equipments as a set of virtual equipment data servers, which are capable of continuously accessing, updating, and storing data from the field equipments. The virtual equipment data servers always possess the field equipments' most recent data and are able to communicate to any application program with a standard communication protocol. The method and apparatus facilitate the integration of a variety of field equipments with high-speed data links in a factory environment.

Abstract: An eco-friendly method is designed to recycle copper contained in the discarded printed circuit boards and the like. The method involves use of various acids, such as hydrochloric acid, sulphuric acid, oxalic acid, to bring about the ionization of the copper, thereby resulting in formation of copper-containing solutions. The copper is brought back in the form of copper oxide or copper powder by use of various reducing agents. All byproducts produced in the course of recycling the copper are useful for other industrial applications.

Abstract: A method of accessing data from field equipments by the host through intelligent network gateways which link field equipments over control network and the host over local area network is disclosed. A configuration software in the host is used to install intelligent network gateways and field equipments as virtual equipment data servers. After finishing installation, the virtual equipment data servers accessupdate store data of the field equipments continuously. Now, the virtual equipment data servers always possess the last field equipment data and can link any application program with a standard communication protocol. The application can integrate easily and high speed access data of a various of field equipments in the factory with only one standard communication protocol through distributed virtual equipment data servers.

Abstract: A cleaning device of a toilet bowl having a handle tube, which is provided at one end with a head seat. The head seat is formed with a receiving area at one side and covered by a retainer. The retainer is provided with a receiving hole for receiving a perforated plate. A bolt passes through the center of the perforated plate to insert into the pillar of head seat, and a rod inserts into the socket of the of head seat from the rear of the perforated plate. The surface of the perforated plate is formed with a circular trough, which is provided with a plurality of pins engaging inside with a ring body. The surface of ring body is formed with a plurality of protuberances.