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Heng-Sheng
Heng-Sheng Chao, Chupei City TW
| Patent application number | Description | Published |
|---|---|---|
| 20110037448 | Switching regulator with transient control function and control circuit and method therefor - The present invention discloses a switching regulator with transient control function, and a control circuit and a method for controlling the switching regulator. The switching regulator with transient control function includes: a power conversion circuit for receiving an input voltage and converting the input voltage to an output voltage; a feedback circuit for detecting the output voltage and generating a feedback signal representing the output voltage; an output capacitor coupled to an output terminal of the power conversion circuit; and a control circuit for receiving the feedback signal and generating a control signal to control the conversion operation by the power conversion circuit accordingly, wherein the control circuit includes a voltage balancing circuit which discharges the output capacitor when the output voltage is higher than a first predetermined threshold, and charges the output capacitor when the output voltage is lower than a second predetermined threshold. | 02-17-2011 |
Heng-Sheng Kuo, Taipei TW
| Patent application number | Description | Published |
|---|---|---|
| 20090091946 | Light-guiding structure - A light-guiding structure includes a light-guiding plate, and an LED set matched with the light-guiding plate. The characteristic is that the light-guiding plate has a light-entering surface, and there are a plurality of ditches on the light-entering surface. A light-entering interface is formed between two adjacent ditches. The LED set corresponds to the light-entering surface of the light-guiding plate, and each of the LEDs of the LED set corresponds to one light-entering interface. By utilizing the light-entering interface and the ditches, the light is uniformly spread. The light is uniformly spread at the light-entering surface of the light-guiding plate so that the bright point does not occur. The light is uniformly emitted from the light-emitting surface and the illumination is enhanced. | 04-09-2009 |
Heng-Sheng Lin, Tu-Cheng TW
| Patent application number | Description | Published |
|---|---|---|
| 20100141184 | FAN AND SPEED CONTROL CIRCUIT THEREOF - A fan includes a speed control circuit and a motor electrically connected with the speed control circuit. The speed control circuit includes an inputting circuit and a transforming circuit electrically connected with the inputting circuit. The inputting circuit supplies a constant current to the transforming circuit. The transforming circuit transforms the constant current to a fluctuating current and outputs the fluctuating current to the motor of the fan. The fluctuating current causes a rotation with a fluctuating speed to the motor of the fan. | 06-10-2010 |