Abstract:
An electronic switch and an operational method for transistor are provided. The electronic switch includes a switch transistor and a bulk switch. The switch transistor has at least a first terminal, a second terminal and a third terminal. According to the third terminal, the connecting status between the first and the second terminal is determined. The bulk switch is coupled to the bulk of the switch transistor for determining whether to connect the bulk to the first or the second terminal of the switch transistor according to at least one control signal.
Abstract:
An optical induction/trackball dual-mode mouse is disclosed to include a mouse body, a trackball module installed in the top of the mouse body, a cursor control optical induction module installed in the bottom of the mouse body, and an induction switch mounted inside the mouse body, the induction switch adapted to switch to use the cursor control optical induction module when the mouse body is put on a flat surface, and the induction switch adapted to switch to use the trackball module when the user holding the mouse body in midair.
Abstract:
A water sprayer includes a water pump, a water accumulator for accumulating water from the water pump, a solenoid switch for controlling water output of the water accumulator, a hose nozzle assembly with a tilt angle-adjustable spray nozzle connected to the output side of the solenoid switch, and a controller for controlling operation of the water pump and the solenoid switch.
Abstract:
A multi-functional pot comprises a lower pot body, a spray ring, a pump, a supporting seat, and an upper pot body. A lower pot body has a positioning seat at a bottom thereof and the positioning seat has a via hole. The pump is installed on the positioning seat. The spray ring is a hollow ring and is placed in the lower pot body. A lower end of the spray ring has a water inlet tube which is connected to a soft tube. The soft tube is then connected to the pump. A soft tube of the pump passes through the upper via hole. A cotton strip is protruded out to be in the basin. The cotton strip absorbs water in the lower pot body to provide the water to the plants in the upper pot body.
Abstract:
An aquavision fountain pot is constructed to include a pot body holding an amount of water, a face panel mounted in the pot body, the face panel having separated waterways and top jet nozzles respectively disposed in communication with the waterways, a plurality of motor pumps installed in a watertight chamber defined in the pot body and controlled by a function controller to pump water from the pot body to the waterways and the jet nozzles to show a water dance, and dashboards provided around the jet nozzles to buffer fallen water.
Abstract:
An air conditioning reactor is provided for producing high temperature, high pressure refrigerant in an engine driven air conditioning system. The system derives power from the waste heat from the coolant of an exothermic engine. The reactor has a double chamber construction which includes an inner chamber and outer chamber. Low temperature refrigerant vapor flows into the inner chamber while high temperature coolant flows into the outer chamber and around the exterior of the inner chamber, thereby raising the temperature and pressure of the refrigerant inside the inner chamber, and causing release of high pressure, high temperature refrigerant out of the inner chamber of the reactor. The reactor can therefore eliminate the need for a compressor in an air conditioning system by utilizing the waste heat in the coolant flowing out of a thermal combustion engine to produce high pressure, high temperature vapor. The reactor can also operate having a reactor chamber internal an engine or engine housing wherein the pressure and temperature of the refrigerant in the reactor chamber is raised by the transfer of energy from the high temperature engine.
Abstract:
The present invention provides a pressure gauge for measuring a pressure of a source. The pressure gauge includes a case, a flexible film, a magnetic device, a coil, a processor, and a screen. The case has a bore connecting the source. The coil is provided in the case. The flexible film is provided on an inner side of the case to cover the bore that the flexible film is expandable by the pressure of the source. The magnetic device is received in the case to be moved relative to the coil by the flexible film. The movement of the magnetic device causes the coil to generate an induced electromotive force, and the processor may find the gas pressure according to the induced electromotive force, and show it on the screen.
Abstract:
The present invention provides a method of detecting water heater safety, wherein the water heater includes a blower and a combustor. The method includes starting the blower and detecting blower speed after a certain amount of time; comparing the blower speed with a first speed range, and then supplying gas to the combustor when the speed of the blower is within the first speed range, or providing an alarm when the blower speed is beyond the first speed range; detecting the speed of the blower again after the combustor heats water for a time; comparing blower speed with a second first speed range, and then supplying gas to the combustor when the blower speed is within the second speed range, or stopping gas when the blower speed is beyond the second speed range.
Abstract:
A frame maintaining circuit including a detection circuit and a display control circuit is provided. The detection circuit detects an unusual status to output a status feedback signal. The display control circuit maintains a frame displayed by a display apparatus according to the status feedback signal until the unusual status ceases.