Chicony Power Technology Co., Ltd.

Shih-Chang Lee

Chung-Shu Lee

Chien-Hung Zordius Chen

Chi-Hsien Weng

Fu-Teng Hou

Jhe-Yu Lin

Chih-Chung Yen

Yi-Min Huang

Chien-An Chen

A charging device includes a main control circuit, a connecting interface, a power supply circuit and a detecting circuit. When an energy storage element connects to the charging device, the connecting interface is coupled to two terminals of a temperature control element. The power supply circuit is coupled to the connecting interface and the main control circuit. The detecting circuit is coupled to the connecting interface. When the energy storage element connects to the charging device, the detecting circuit generates a detecting signal being used to trigger the power supply circuit to provide a main operating voltage to the main control circuit. When temperature of the energy storage element exceeds a threshold, the temperature control element makes the detecting circuit not to generate the detecting signal, so the power supply circuit ceases to provide the main operating voltage to the main control circuit.

Charging device and charging system

A transformer with a conductive plate winding structure includes a hollow core pillar, a partition, a conductive plate winding structure, and an insulating layer. The partition is fixed at the hollow core pillar for partitioning the hollow core pillar into two winding areas. The conductive plate winding structure is sheathed to the hollow core pillar and disposed at one of the two winding areas, and comprised of a plurality of conductive plates, and each conductive plate includes a ring having an opening and two conductive terminals extended out from the opening of the ring. The insulating layer is clamped between any two adjacent conductive plates, such that the conductive plates are stacked to from a winding for increasing the rated normal current and enhancing the assembling convenience.

Transformer with conductive plate winding structure

A current-sharing power supply apparatus is applied to regulate voltage level of an input DC voltage, and the regulated DC voltage is stabilized in a predetermined voltage to be used on rear-end circuits. The current-sharing power supply apparatus includes a square-wave generating circuit, a rectifier circuit, a conversion circuit, a rectifier circuit, a filter circuit, a first output terminal, and a second output terminal. The current-sharing power supply apparatus provides two output voltages with a multiple relation from the first output terminal and the second output terminal, respectively.

Current-sharing power supply apparatus

A power supply apparatus with a current-sharing function includes a conversion circuit, a square-wave generating circuit, a resonant circuit, and a rectifier-filter circuit. The conversion circuit has two transformers, and each of the transformers has a primary winding and two secondary windings. More particularly, two secondary windings of the different transformers are electrically connected in series and then the two in-series secondary windings are electrically connected in parallel. The square-wave generating circuit is used to switch a DC voltage into a pulsating voltage. The resonant circuit is electrically connected to the square-wave generating circuit, and having a first capacitor and the primary windings of the transformers. The rectifier-filter circuit has at least two switch components and a second capacitor, and electrically connected to the secondary windings of the transformers to rectify an AC output voltage into a DC output voltage, and the DC output voltage is outputted to at least one output terminal.

Power supply apparatus with current-sharing function

A two-stage balancer for a multi-lamp backlight is electrically connected to a driving unit through a driving transformer. The two-stage balancer includes a plurality of first balancing transformers, second balancing transformers, and lighting units. Each of the first balancing transformers is electrically connected to the corresponding second balancing transformers to form a two-stage structure. In addition, a primary winding and a secondary winding of the second balancing transformer is electrically connected in series to one lighting unit, respectively, to form a circuit loop. Further, each of the circuit loops is electrically connected in parallel. Whereby the two-stage balancer provides much better current balance between the parallel circuit loops, and outputs a sinusoid-like driving current to increase lighting efficacy and further maintain uniform brightness of the multi-lamp backlight.

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Taipei Hsien, Taiwan

Shih-Chang Lee