Abstract: A method for power management of a CPU and a system thereof, which drive the CPU to enter a more efficient power saving state are disclosed. A chip of the present invention sends a first control signal to drive the CPU to wake from a non-snooping sleep state and enter a normally executing instruction state as well as a system management mode to execute a system management interrupt routine. Then the chip enables an arbiter to transmit a bus master request to the CPU for processing. After completing the processing of the bus master request, the chip disables the arbiter and the CPU drives the chip to send a second control signal to drive the CPU to return to the non-snooping sleep state according the system management interrupt routine.

Abstract: A lamp with heat conducting structure includes a lamp cover made of heat dissipating material. The lamp cover has a hollow configuration therein. An interlayer is horizontally arranged in the lamp cover. The lamp cover is divided into a first space and a second space therein by the interlayer. A LED lamp assembly is disposed in the first space of the lamp cover. A power plug is disposed in the second space of the lamp cover. The power plug has a control circuit board in the second space. The control circuit board has an electronic element disposed thereon. A heat conducting tab protrudes from the interlayer of the lamp cover towards the second space. The heat conducting tab has a heat conducting surface corresponding to the electronic element to thermally contact with the electronic element.

Abstract: A heat-dissipating structure includes a base seat, a plurality of heat-dissipating fins and a heat pipe. The heat-dissipating fins are separated from each other by a predetermined distance, and each heat-dissipating fin has a base portion and at least one bending portion that is bent and extended upwards from one side of the base portion. The length of each bending portion is the same to or larger than the length of the base portion. The heat pipe is connected with the base seat, and at least one side of the heat pipe passing through the base portions of the heat-dissipating fins. Therefore, the present invention can obtain a perfect heat-dissipating coefficient and a better heat-dissipating efficiency by using the bending portion that is bent and extended upwards from one side of the base portion.

Abstract: A control device for a gas burner includes a housing having a chamber and an inlet and an outlet portion communicating with the chamber of the housing for receiving a gas, a casing rotatably engaged into the chamber of the housing for controlling the flowing of the gas from the inlet to the outlet portion of the housing, a mouth piece attached to the outlet portion of the housing for allowing the gas to flow out through the mouth piece, and a gas nozzle selectively attached to the mouth piece and having an outlet opening smaller than that of the mouth piece for supplying a reduced gas out through the gas nozzle and for fitting with the natural or the bottled gas reservoirs.

Abstract: The sensor device has a casing housing a circuit board and a replaceable sensor on the circuit board. The casing has an opening corresponding to the sensor location and a manually removable cap is reliably positioned in the opening. Once the cap is removed, the sensor can be easily accessed and replaced. The cap is integrated with the casing smoothly so that the appealing of the outlook of the sensor device is minimally affected.

Abstract: A lamp with heat conducting structure includes a lamp cover made of heat dissipating material. The lamp cover has a hollow configuration therein. An interlayer is horizontally arranged in the lamp cover. The lamp cover is divided into a first space and a second space therein by the interlayer. A LED lamp assembly is disposed in the first space of the lamp cover. A power plug is disposed in the second space of the lamp cover. The power plug has a control circuit board in the second space. The control circuit board has an electronic element disposed thereon. A heat conducting tab protrudes from the interlayer of the lamp cover towards the second space. The heat conducting tab has a heat conducting surface corresponding to the electronic element to thermally contact with the electronic element.

Abstract: The oxygen sensing device contains a power circuit supplying the electricity required, an oxygen sensor for detecting the oxygen concentration in the atmosphere, an alarm system issuing an audible or visual alarm signal, and a controller. The controller is a computing device having a preset threshold value that continuously obtains the current oxygen concentration from the oxygen sensor. The controller then can calculate and obtain the variation rate of the oxygen concentration in a unit time. If the controller detects that the current oxygen concentration is about to drop below the threshold value, it will activate the alarm system to issue an alarm to alert people to take immediate and proper action.

Abstract: A light emitting device including a housing, a light emitting unit, and a heatsink is provided. The housing has a projection end and a heat dissipation end, and a first opening and a second opening are respectively formed in the projection end and the heat dissipation end. The light emitting unit is disposed inside the housing, and is corresponding to the heat dissipation end, for projecting a light toward the projection end and through the first opening. The heatsink is fixed to the heat dissipation end of the housing, and in contact with one side of the light emitting unit that faces the second opening, for dissipating the heat generated by the light emitting unit to the outside air.

Abstract: A method for power management of CPU and a system thereof which drive the CPU enter a most efficient power saving state is disclosed. A chip of the present invention sends a first control signal to drive the CPU to wake from the non-snooping sleep state and enter a normally executing instruction state as well as a system management mode to execute a system management interrupt routine. Then the chip enables an arbiter to transmit the bus master request to the CPU for processing. After completing processing the bus master request, the chip disables the arbiter and the CPU drives the chip sends a second control signal to drive the CPU return to the non-snooping sleep state according the system management interrupt routine.

Abstract: An enclosure structure of water heater is disclosed, which is readily assembled/disassembled and has an enhanced structural strength, including two opposite side panels having front and rear edges along which aluminum-extruded channels are integrally fixed to respectively receive opposite edges of a front panel and an opposite base plate and top and bottom cover boards respectively attached to upper and lower edges of the side panels to secure the front panel and the base plate in the channels of the side panels. Such a structure enhances simplification of assembling/disassembling the water heater enclosure and provides flexibility in modification of overall outside appearance of the water heater by replacing the side panels and the front panel to thereby eliminate troubles and inconveniences that are encountered in the conventional water heater enclosures.

Abstract: A barbecue stove structure having a switch includes a support frame, multiple flow rate control valves, and multiple press plates. When the control knob is rotated, the drive rod of the flow rate control valve and the press plate may be rotated by the control knob, so that the contact and press portion of the press plate contacts and presses the signal receiving terminal of the switch, so that the control circuit of the electric power device may output a current to an igniter of each of the burner heads, so that each of the burner heads may ignite and burn.

Abstract: A barbecue stove structure having a switch includes a support frame, multiple flow rate control valves, and multiple press plates. When the control knob is rotated, the drive rod of the flow rate control valve and the press plate may be rotated by the control knob, so that the contact and press portion of the press plate contacts and presses the signal receiving terminal of the switch, so that the control circuit of the electric power device may output a current to an igniter of each of the burner heads, so that each of the burner heads may ignite and burn.

Abstract: A control valve structure of a gas burner includes a female base, a top base, and a coil base. The control panel energizes the coil base to generate a magnetic field, whereby the magnetic column is displaced upward by the magnetic force of the coil base, so that the main fire electromagnetic valve is acted to let the gas flow into a main fire gas vent, so that the main fire is ignited. The control panel stops energizing the coil base when not in use, whereby the magnetic column is displaced downward to press the push pin, so that the gas cannot enter the main fire gas vent. The displacement can be adjusted finely during the use process, thereby achieving a gas flow rate control with a high safety.

Abstract: A control valve structure of a gas burner includes a female base, a top base, and a coil base. The control panel energizes the coil base to generate a magnetic field, whereby the magnetic column is displaced upward by the magnetic force of the coil base, so that the main fire electromagnetic valve is acted to let the gas flow into a main fire gas vent, so that the main fire is ignited. The control panel stops energizing the coil base when not in use, whereby the magnetic column is displaced downward to press the push pin, so that the gas cannot enter the main fire gas vent. The displacement can be adjusted finely during the use process, thereby achieving a gas flow rate control with a high safety.

Abstract: A bias circuit produces a common mode bias voltage that relies upon active, auto tracking feedback responsive to the reference voltage, such as analog ground, and to the common mode bias voltage to generate a common mode voltage for a differential amplifier. The bias circuit supports high-speed operation, and is stable with variations in temperature, manufacturing processes, and with shifts in the supply voltages. In one embodiment, the bias circuit comprises an operational amplifier and a feedback amplifier that has a common mode bias terminal coupled to the output of the operational amplifier and arranged in a feedback loop with the operational amplifier. The output of the operational amplifier is used as a common mode bias voltage for a differential amplifier.

Abstract: A programmable and input voltage independent reference voltage generator. Size of reference voltage can be adjusted by controlling size of current using current mirrors and MOS switches. No decoding circuit is necessary. By adjusting the resistance value, current mirror and dimensional ratio of MOS, a chip area smaller than a decoding circuit can be used to accommodate the reference voltage generator. The reference voltage generator is able to provide an adjustable and stable reference voltage to different types of electronic modules. By providing a highly flexible reference voltage, performance of any circuits using the generator is boosted.