Abstract: A card connector includes an insulating holder base having a first slideway and a second slideway formed on both sides of a plug-in space therein, a terminal set with multiple conductive terminals set in the plug-in space, and a push-push mechanism including a main sliding seat and an auxiliary sliding seat independently structured and respectively set in the first slideway and the second slideway. The main sliding seat is provided with a first resisting arm, and a cyclic guide groove and a guide rod for sliding positioning. The auxiliary sliding seat has a second resisting arm. The first resisting arm and the second resisting arm are used for resisting and moving a combined structure of a preset SIM card and a tray, so that when the main sliding seat and the auxiliary sliding seat are moving, the main sliding seat has a greater resistance than the auxiliary sliding seat.

Abstract: In a card connector, a main body has a plugging space formed therein and used to locate terminals of a terminal set, two sliding members of a sliding mechanism are movably disposed on two sides of the terminal set in the plugging space, respectively, and each sliding member has a supporting part protruded on a side thereof and extended into the plugging space, and elastic members are abutted between sides of the two sliding members and two opposite sidewalls of the plugging space, respectively; a terminal of a guiding rod is slid along a guiding groove, and an other terminal of the guiding rod is inserted through the main body; a push plate of a shielding housing is abutted with the guiding rod, so that a preset electronic card can be stably inserted into or ejected out of the plugging space through the two sliding members.

Abstract: A charging device and a safety function control circuit and method thereof are provided. When a charging device is not connected to a load, a converted voltage value of a power connection terminal of the charging device is kept to be lower than a safe voltage value so as to maintain a safe mode. The safety function control circuit includes a first control module and a second control module for constant voltage control. The first control module and the second control module perform matching control on a power conversion circuit of the charging device, and in case of a single fault of one of the control modules, the other module is still capable of keeping the converted voltage value to be less than the safe voltage value. Thus, it is ensured that the safe mode stays functional in case of a concurrency of both a single hardware fault and a single firmware fault.

Abstract: In a card connector, a main body has a plugging space formed therein and used to locate terminals of a terminal set, two sliding members of a sliding mechanism are movably disposed on two sides of the terminal set in the plugging space, respectively, and each sliding member has a supporting part protruded on a side thereof and extended into the plugging space, and elastic members are abutted between sides of the two sliding members and two opposite sidewalls of the plugging space, respectively; a terminal of a guiding rod is slid along a guiding groove, and other terminal of the guiding rod is inserted through the main body; a push plate of a shielding housing is abutted with the guiding rod, so that a preset electronic card can be stably inserted into or ejected out of the plugging space through the two sliding member.

Abstract: A power supply apparatus is provided, and which includes a power conversion circuit, a control chip with soft-start function and a short protection circuit. The power conversion circuit is configured to provide a DC output voltage to a load in response to an output pulse-width-modulation (PWM) signal. The control chip is operated under a DC input voltage, and configured to generate the output PWM signal to control the operation of the power conversion circuit. The short protection circuit is configured to pull-down the level of a soft-start pin of the control chip, so as to substantially/significantly reduce the frequency and duty cycle of the output PWM signal, and then substantially/significantly reduce the current flowing through the shorted load.

Abstract: A load driving apparatus related to an LED lamp and a method thereof are provided. The load driving apparatus includes a PWM-based power converter and a determination circuit. The PWM-based power converter is coupled to the LED lamp, and is configured to: generate a DC operation voltage of the LED lamp; and control a current flowing through the LED lamp in response to a dimming signal, so as to adjust a brightness of the LED lamp. The determination circuit is coupled to the PWM-based power converter and the LED lamp, and is configured to: receive the DC operation voltage; and stop conducting the DC operation voltage to the LED lamp in case that a lamp-off condition of the LED lamp is satisfied.

Abstract: A power supply apparatus is provided, and which includes a power conversion circuit, a control chip with soft-start function and a short protection circuit. The power conversion circuit is configured to provide a DC output voltage to a load in response to an output pulse-width-modulation (PWM) signal. The control chip is operated under a DC input voltage, and configured to generate the output PWM signal to control the operation of the power conversion circuit. The short protection circuit is configured to pull-down the level of a soft-start pin of the control chip, so as to substantially/significantly reduce the frequency and duty cycle of the output PWM signal, and then substantially/significantly reduce the current flowing through the shorted load.

Abstract: A load driving apparatus related to an LED lamp and a method thereof are provided. The load driving apparatus includes a PWM-based power converter and a determination circuit. The PWM-based power converter is coupled to the LED lamp, and is configured to: generate a DC operation voltage of the LED lamp; and control a current flowing through the LED lamp in response to a dimming signal, so as to adjust a brightness of the LED lamp. The determination circuit is coupled to the PWM-based power converter and the LED lamp, and is configured to: receive the DC operation voltage; and stop conducting the DC operation voltage to the LED lamp in case that a lamp-off condition of the LED lamp is satisfied.

Abstract: A memory card connector assembly is provided for mounting on a printed circuit board. The assembly includes a first memory card connector for mounting on the circuit board and including a housing defining a bottom card-receiving space for receiving a first memory card. A plurality of terminals are provided for electrically connecting appropriate contacts on the first memory card to the circuit board. A second memory card connector is provided for mounting over the top of the first connector. The second connector includes a housing defining a top card-receiving space for receiving a second memory card, along with a plurality of terminals for electrically connecting appropriate contacts on the second memory card to the circuit board.

Abstract: A memory card connector assembly is provided for mounting on a printed circuit board. The assembly includes a first memory card connector for mounting on the circuit board and including a housing defining a bottom card-receiving space for receiving a first memory card. A plurality of terminals are provided for electrically connecting appropriate contacts on the first memory card to the circuit board. A second memory card connector is provided for mounting over the top of the first connector. The second connector includes a housing defining a top card-receiving space for receiving a second memory card, along with a plurality of terminals for electrically connecting appropriate contacts on the second memory card to the circuit board.

Abstract: A card edge connector includes an insulative housing, a plurality of terminals and two latches. The insulative housing has a main body and two lateral side frames, each lateral side has a concave groove formed thereon. The terminals are disposed on the main body. The two latches individually are disposed on two free ends of the two lateral side frames, and has two base portions. Wherein each base portion has a limiting tab extended from a front side of the base portion, an elastic arm connected with a rear side of the base portion, and the limiting tab is inserted into the concave groove. When the two lateral side frames are pushed outwardly, the two lateral side frames push the elastic arms to move outwardly, and the limiting tab interferes with the concave groove for limiting an outward pushing distance of the two lateral frames.

Abstract: A memory card connector includes an insulating housing which at least in part defines a card-receiving space. An array of first terminals is mounted on the housing at a rear area of the card-receiving space for engaging appropriate contacts on a first type of memory card. An array of second terminals is mounted on the housing at a forward area of the card-receiving space for engaging appropriate contacts on a second type of memory card. At least one of the second terminals includes a body portion fixed to the housing. A resilient contact arm is cantilevered from the body portion. A contact portion is located at a free end of the resilient contact arm and projects into the card-receiving space. An extension portion extends beyond the contact portion to prevent the contact portion from projecting into any recesses in a surface of a memory card.