Abstract: A power plug adapter with a magnetically attachable module is provided. A signal transmission device is connected with the power plug adapter and the magnetically attachable module. At least one magnetic unit is arranged on the power plug adapter, and at least one counterpart magnetic unit is arranged on the magnetically attachable module. When the magnetically attachable module and the power plug adapter are arranged to have attachment surfaces thereof adjacent to and facing each other, the counterpart magnetic unit of the magnetically attachable module magnetically attracts the attachment surface of the power plug adapter to have the magnetically attachable module and the power plug adapter attached to each other magnetically.

Abstract: An electronic load for a semiconductor element is provided. The electronic load includes at least two slope generating circuits, each of which generates a current according to a current for the electronic load corresponding to an output voltage of a power supply. Each slope generating circuit comprises at least a first slope generating circuit that simulates a first slope when the output voltage of the power supply is between 0V to a rated voltage, and a second slope generating circuit that simulates a second slope when the output voltage of the power supply is higher than the conducting state voltage of the semiconductor element by subtracting the forward bias voltage from the output voltage of the power supply.

Abstract: A saved power measuring circuit comprises a control unit, a clock signal generating circuit connected to the control unit for generating a clock signal to the control unit, a power consumption measuring circuit connected to a power supply loop for measuring the power consumption of an electric appliance load operated in operation mode, a power consumption memory unit connected to the control unit for memorizing the power consumption, a break loop status signal generating circuit for generating a break loop status signal to the control unit. When the control unit receives the break loop status signal generated from the break loop status signal generating circuit, it calculates saved power of the electric appliance load in power saving mode according to the power consumption and the lasting time after receiving the break loop status signal.

Abstract: An electronic load for a semiconductor element is provided. The electronic load includes at least two slope generating circuits, each of which generates a current according to a current for the electronic load corresponding to an output voltage of a power supply. Each slope generating circuit comprises at least a first slope generating circuit that simulates a first slope when the output voltage of the power supply is between 0V to a rated voltage, and a second slope generating circuit that simulates a second slope when the output voltage of the power supply is higher than the conducting state voltage of the semiconductor element by subtracting the forward bias voltage from the output voltage of the power supply.

Abstract: A smart electronic connecting device applicable to control the electronic connection between an external power supply and an external electronic connector includes an input unit connected to the external power supply, a processing module, a mode generation unit, an output unit and a relay unit connected between the input unit and the output unit. The processing module has a timing generation unit generating a timing signal, a control unit generating a control signal, and a memory unit. The mode generation unit generates multiple mode selecting signals to the control unit. The output unit is to connected to the external electronic connector. The relay unit is turned on/off selectively according to the control signal of the control unit to conduct the input unit and the output unit, wherein the memory unit records the turn-on connection status of the relay unit within the predetermined period to recur the turn-on connection status.

Abstract: A control circuit is provided for a power-saving socket and includes a central processing unit, a relay, a sensor unit, a time counting unit, a standby current setting unit, and a current monitoring unit. The central processing unit, upon receiving a human approaching signal from the sensor unit, issues a control signal to the relay to switch a contact of the relay to a closed condition, whereby an electrical appliance plugged to the socket is allowed to operate. When the electrical appliance plugged to the socket stays in a standby mode, the central processing unit receives a current value from the current monitoring unit, which is equal to or smaller than an appliance standby current level, and the time counting unit starts time counting for a specific period of time.

Abstract: An electrical socket apparatus with over-current protection is disclosed, including at least two sockets, at least one breaker switch, a current detection unit and a microprocessor. The sockets are coupled in parallel to a power system. The breaker switch is installed in the path of one of the sockets coupled to the power system for breaking or connecting the path of the sockets to the power system. The current detection unit detects the current flowing into the sockets and outputs a set of current values. The microprocessor is coupled to the current detection unit for receiving the set of current values, determining whether a total current flowing into the sockets exceeds a current threshold value and breaking the breaker switch according to a predetermined breaking data when total current flowing into the sockets exceeds the current threshold value.

Abstract: An electrical load status detection and control device includes a first power supply circuit loop with a first switch, a second power supply circuit loop with a second switch, a no-load status detection unit connected with the second power supply circuit loop for detecting the current passing through the second power supply circuit loop and thereby generating a current detection signal. A micro-controller connected with a reference current value database, the no-load status detection unit, the first switch and the second switch, which receives the current detection signal from the no-load status detection unit. The micro-controller generates a switching signal to actuate the first switch and the second switch to thereby open the first power supply circuit loop and the second power supply circuit loop when detecting the current passing through the second power supply circuit loop out of the reference current value range of the reference current value database.

Abstract: A power regulation device is connected between a power source and a load for receiving receive first voltage from the power source and providing a second voltage to the load. The power regulation device includes a first voltage detection circuit for detecting the first voltage and a second voltage detection circuit for detecting second voltage. A controller receives signals representing the first and second voltages and compares the signals with preset references to issue control signals. A switch circuit is connected between the power source and the load and is coupled to and controlled by the controller. The switch circuit is controlled by the control signals of the controller to change from the first state to a second state for selectively passing the first voltage and inducing different levels of the second voltage which are associated with different powers supplied to the load.

Abstract: Improved structure for high resolution mouse is equipped with a frictional sleeve on each one of a pair of transmission shafts with transmission wheel circumferential length multiple of that of corresponding frictional sleeves so as to increase rotational ratio and facilitate an associated pair of infrared detectors able to detect bright/dark intermitten variation of light imput more distinctly and reliably from a pair of light shading wheels in a given time duration and send out corresponding high resolution (DPT) signals.

Abstract: An AC load simulator for simulating the waveforms of capacitive reactance, inductive reactance, impedance or any waveform in an A.C. circuit for a better understanding and inspecting of the working status of an A.C. supply or a power part in a specific load. The simulator mainly comprises a waveform generator, an analogy signal insulating amplifier, an electronic A.C. load and a compensation circuit, wherein the waveform generator produces sinusoidal wave or any other signal in waveform. The above parts together with the circuit, an A.C. load simulator for generating any kind of waveform is integrated.