Patent application number | Description | Published |
20080268680 | Electronic device with a plug guard - An electronic device with a plug guard that can be connected to an external power source and other digital source respectively by a power plug and a digital data plug and has an electronic device and a plug guard. The electronic device has an outer surface and an integrated external interface socket. The integrated external interface socket is formed in the outer surface and has a power segment and at least one digital data segment formed in-line and communicating with each other. The plug guard is mounted securely on the outer surface of the electronic device adjacent to the digital data segments to keep the power plug from being plugged into the digital data segment. | 10-30-2008 |
20080293273 | CONNECTION ASSEMBLY FOR OFFSETTING TILTING - A connection assembly for offsetting tilting caused by weight difference between two objects includes a first male connector, a second male connector linearly misaligned with the first male connector, a first female connector and a second female connector linearly misaligned with the first female connector. Both the first and second male connectors are formed on a first object and both the first and second female connectors are formed on a second object. Due to the misaligned relationship, weight of the combination between the first object and the second object is redistributed to avoid tilting. | 11-27-2008 |
20090059636 | POWER ADAPTER HAVING AN ELECTRICITY STORING CAPABILITY - A power adapter has a body, a pair of blades, a DC output terminal, an AC to DC circuit, a node and a storage unit. The blades are mounted in and protrude from the body to connect to an AC power source to obtain AC power. The DC output terminal is mounted on the body to connect to a load. The AC to DC circuit is mounted in the body, converts the AC power into DC power and has an input terminal and an output terminal. The node is defined between the DC output terminal and the AC to DC circuit. The storage unit is connected to the node to store the DC power output from the AC to DC circuit and provide a stored DC output to the DC output terminal. | 03-05-2009 |
20110051477 | Front-end circuit of power converter - A front-end circuit of a power converter has a power connection wiring detecting circuit, a power switch and a control unit. The power connection wiring detecting circuit is connected to an AC power. The control unit is connected to the power connection wiring detecting circuit. The power switch is connected to the power loop. The control unit turns on or off the AC power loop through the power switch. When the power connection wiring is correctly connected with the AC power, the control unit turns on the power switch and the front-end circuit outputs the AC power to the back-end circuit. When the power connection wiring is incorrectly connected with the AC power, the control unit turns off the power switch and the AC power is not outputted to the back-end circuit. | 03-03-2011 |
20110316711 | Pocket grounding device without power socket - A pocket grounding device without power socket has a casing, an AC plug and a circuit board. The AC plug is mounted in the casing and electronically connected to the circuit board. The circuit board has a ground detecting circuit having three ports respectively connected to the AC plug, an electronic switch connected between to two of the ports and a controlling terminal thereof connected to the last port, and an indicator exposed to the casing. The indictor is driven to light according to an AC outlet of a power strip having good or bed grounding connection. Therefore, a user checks the indicator status to judge whether the AC power strip has good grounding connection. | 12-29-2011 |
20130044523 | Power supply having a surge protection circuit - A power supply having a power protection circuit has a rectification circuit and a converter. An input terminal of the rectification circuit is connected with the AC mains. A first voltage dependent resistor is connected with the AC mains. The converter has a transformer. A primary side of the transformer is connected with an output terminal of the rectification circuit, and the secondary side is connected to a power output terminal and a ground terminal. A Y capacitor is connected between the primary side of the transformer and the ground terminal. A surge protection module is connected between the first voltage dependent resistor and the Y capacitor. When a surge occurs between the primary and secondary sides of the transformer, a surge current is shunted by the surge protection module to the ground terminal through the Y capacitor without damaging internal components or circuits inside the power supply. | 02-21-2013 |
20130076364 | BATTERY DETECTION METHOD - A battery detection method detecting if a voltage to be tested falls within a voltage range between a highest voltage of a rechargeable battery and a highest detection voltage. If the voltage to be tested is less than the highest detection voltage, further determine if the voltage to be tested reaches a target voltage within a test time period. If the voltage to be tested reaches the target voltage after the test time period expires, determine that the voltage to be tested is from a rechargeable battery. If the voltage to be tested reaches the target voltage within the test time period, determine that the voltage to be tested is from a non-rechargeable battery. Accordingly, the battery detection method can easily detect if a voltage to be tested is from a rechargeable battery. | 03-28-2013 |