Abstract: An electronic device includes a semiconductor chip and a first memory device. The semiconductor chip includes an input/output (I/O) interface circuit. The first memory device is external to the semiconductor chip. The semiconductor chip communicates with the first memory device via the I/O interface circuit. The semiconductor chip stores at least one hardware setting of the semiconductor chip into the first memory device before a power-off event of the semiconductor chip.

Abstract: A high performance linear driving circuit converting an AC voltage of an external power supply into a DC output current and then outputs the DC current to at least one LED includes a detection unit, a control unit and a current unit. In a 180-degree phase sine wave period of the AC voltage, the total current of the output current is formed by a first working section, an energy saving section and a second working section, and the detection unit detects at least a voltage value of the AC voltage or a current value of the output current to generate a detection signal, and drives the control unit to modulate the duty cycle and current value of the first working section, energy saving section and second working section, and the amounts of current of the first and second working sections are greater than that of the energy saving section.

Abstract: A self-excited power conversion circuit for secondary side control output power includes a comparator unit and a transistor installed directly in a secondary side output module, and the comparator unit is electrically coupled to at least one load, and the transistor is electrically coupled between to a conversion module of the circuit and the load. The comparator unit is provided for adjusting the duty cycle of the transistor after detecting the amount of energy outputted from the conversion module to the load from, so as to adjust the amount of energy actually received by the load to achieve a constant power effect.

Abstract: A self-excited power conversion circuit for secondary side control output power includes a comparator unit and a transistor installed directly in a secondary side output module, and the comparator unit is electrically coupled to at least one load, and the transistor is electrically coupled between to a conversion module of the circuit and the load. The comparator unit is provided for adjusting the duty cycle of the transistor after detecting the amount of energy outputted from the conversion module to the load from, so as to adjust the amount of energy actually received by the load to achieve a constant power effect.

Abstract: A protection structure includes a temperature sensing module, a processing module, and a charging control module. The temperature sensing module senses the temperature of a battery and outputs electronic signals. The processing module receives the electronic signals and outputs a first control signal group. The charging control module receives the electronic signals and the first control signal group, compares the electronic signals with a first reference range, and outputs a second control signal group according to the comparison results. When the second control signal group and the first control signal group both include a charging signal or a stop-charging signal, the executing module controls the battery to charge or stop the battery from charging according to the first control signal group.

Abstract: A disk recording device includes a processor, and a storage device, a memory reader, a display, an encoder, a disk recorder, all electrically connected to the processor. The storage device is configured for storing a first file. The memory reader is configured for reading the first file. The processor is configured for transforming the first file into a second file of a specific format compatible with the encoder. The encoder is connected to the processor and used for encoding the second file into a third file, and sending the third file to the processor. The processor is also configured for transforming the third file into a disk storable formatted file. The disk recorder is configured for recording the disk storable formatted file in the disk. The present embodiment also relates to a digital photo frame using the disk recording device.

Abstract: A protection structure for battery charging includes a temperature sensing module, a processing module, and a charging control module. The temperature sensing module is configured for sensing the temperature of a battery and outputting electronic signals. The processing module is configured for receiving the electronic signals and outputting a first control signal group. The charging control module is configured for receiving the electronic signals and the first control signal group, comparing the electronic signals and a first reference range and outputting a second control signal group according to the comparison results, further recognizing and comparing the second control signal group with the first control signal group. When the second control signal group and the first control signal group both include a charging signal or a stop-charging signal, the executing module controls the battery to charge or stop the battery from charging according to the first control signal group.

Abstract: An exemplary battery charging system includes a temperature sensor, a voltage measuring device, a processor and a charger. The temperature sensor is used for continuously sensing the current temperature of a rechargeable battery. The voltage measuring device is used for continuously measuring the current voltage U of the rechargeable battery. The processor is used for comparing the current temperature T with two temperature thresholds and comparing the current voltage U with two cut-off voltages, and generating a PWM control signal to the charger based on the results of the comparisons. The charger is used for charging the battery. When T reads as normal, the charger charges the battery using a first average current I1 and stops charging at U1. When T reads as hot, the charger charges the battery using a second average current I2 and stops charging at U2, wherein I1>I2, U1>U2.

Abstract: An audio jack connector for mating with an audio plug connector has an insulating housing. The insulating housing defines an inserting hole extended from the front to the rear for receiving the audio plug connector and a recess communicating with the inserting hole at a rear end thereof. A terminal received in the recess has a base plate. Two opposite sides of the base plate extend downwards to form two fixing wings. Two facing contacting arms extend frontward from two front edges of the two fixing wings. Free ends of the contacting arms arch towards each other to form two smooth V-shaped contacting portions protruded into the inserting hole. Each of the contacting portions has two spaced smooth ribs protruded from an inner surface thereof and spreading towards two ends of the contacting portion from a peak of the contacting portion to form a smooth V-shape.

Abstract: An audio jack connector for mating with an audio plug connector has an insulating housing. The insulating housing defines an inserting hole extended from the front to the rear for receiving the audio plug connector and a recess communicating with the inserting hole at a rear end thereof. A terminal received in the recess has a base plate. Two opposite sides of the base plate extend downwards to form two fixing wings. Two facing contacting arms extend frontward from two front edges of the two fixing wings. Free ends of the contacting arms arch towards each other to form two smooth V-shaped contacting portions protruded into the inserting hole. Each of the contacting portions has two spaced smooth ribs protruded from an inner surface thereof and spreading towards two ends of the contacting portion from a peak of the contacting portion to form a smooth V-shape.

Abstract: A card connector is disclosed that includes an insulating housing and a plurality of contacts. The insulating housing defines a plurality of contact slots. Each of the contact slots extends outwardly and laterally from two opposite side edges thereof to form two resisting protrusions respectively, wherein each of the resisting protrusions forms a resisting surface extending obliquely and inwardly from one side thereof. The contacts are respectively received in the contact slots of the insulating housing. Each of the contacts has a contact portion protruding upwardly for being pressed by a card and the contact portion is connected with a bearing portion resisting against the resisting surface for preventing the contact portion from flipping upwardly out of the insulating housing.

Abstract: A card connector is disclosed that includes an insulating housing and a plurality of contacts. The insulating housing defines a plurality of contact slots. Each of the contact slots extends outwardly and laterally to opposite sides to form two resisting protrusions respectively, wherein each of the resisting protrusions forms a resisting surface extending obliquely and inwardly from one side thereof. The contacts are respectively received in the contact slots of the insulating housing. Each of the contacts has a contact portion protruding upwardly for being pressed by a card and the contact portion is connected with a bearing portion resisting against the resisting surface for preventing the contact portion from flipping upwardly out of the insulating housing.

Abstract: A microphone connector includes an insulation housing and an electrical contact. The insulation housing has an insertion passage arranged at a top surface thereon, a receiving space arranged at a bottom surface thereon and communicated with the insertion passage and grooves passing through opposite sidewalls of the insulation housing. The electrical contact includes a body portion arranged up on the sidewalls, a soldering portion arranged at one end of the body portion, at least two opposite arms arranged at the other end of the body portion and received in the corresponding grooves respectively and elastic connection portions respectively arranged at the side arms and received in the receiving space. While a terminal of a microphone inserts into the insertion passage and electronically couples to the elastic connection portions to form multi-conductive areas, signal is transmitted between the microphone and the microphone connector stably through the multi-conductive areas.

Abstract: A plug connector includes an insulating housing, a plurality of terminals, a rear lid and a cover. The insulating housing has a base portion and a tongue portion extending forward from the base portion and defines a plurality of receiving slots for receiving the respective terminals. Each of the terminals has a soldering section stretching out from the rear of the base portion. The rear lid has a prop section and a support section protruding rearward from the rear of the prop section. The prop section is propped against the rear of the base portion of the insulating housing and defines a plurality of channels passing therethrough. The soldering sections of the terminals pass through the corresponding channels and are supported by the support section to be soldered with cables. The cover wraps the insulating housing and the rear lid.

Abstract: A memory card connector includes an insulating housing, an auxiliary member and an ejecting device used for withdrawing a memory card from the memory card connector. The insulating housing has a base. Two sidewalls and a rear wall extend upwards from edges of the base. A plurality of terminal cavities are defined in the insulating housing for receiving a plurality of electric terminals. A cover is coupled with the insulating housing. One side of the insulating housing defines an accommodating cavity. A preventing member is formed at the inside of the accommodating cavity. The auxiliary member is received in the accommodating cavity and slides between the sidewall and the preventing member. The auxiliary member includes at least one elastic member and a cooperative member. The elastic member is located between and against the sidewall and the cooperative member. Hence, the cooperative member is blocked by the preventing member.

Abstract: A memory card connector includes an insulating housing, an auxiliary member and an ejecting device used for withdrawing a memory card from the memory card connector. The insulating housing has a base. Two sidewalls and a rear wall extend upwards from edges of the base. A plurality of terminal cavities are defined in the insulating housing for receiving a plurality of electric terminals. A cover is coupled with the insulating housing. One side of the insulating housing defines an accommodating cavity. A preventing member is formed at the inside of the accommodating cavity. The auxiliary member is received in the accommodating cavity and slides between the sidewall and the preventing member. The auxiliary member includes at least one elastic member and a cooperative member. The elastic member is located between and against the sidewall and the cooperative member. Hence, the cooperative member is blocked by the preventing member.