Abstract: A switch mode power supply circuit with high voltage output, an electrostatic spray apparatus and agricultural plant protection apparatus using the same are provided. The switch mode power supply circuit is electrically connected in series with at least a pre-stage power converter and a post-stage power converter. In order to simplify the control, the switch of the pre-stage power converter is omitted, only one switch of the post-stage power converter is adopted to perform synchronous control. Since the multiple sets of power conversion circuits in the previous stage are connected in series, the turn ratio of the transformer in the power converter in the subsequent stage can be reduced. Therefore, the transformer can be miniaturized and the power supply circuit would be more suitable for agricultural plant protection machine and electrostatic spray apparatus.

Abstract: A single-wire dimming method is provided in the present invention. The method is adapted for a lamp with a first color light source and a second color light source. The method includes: providing a dimming control interface, wherein the power voltage is chopped when the dimming control interface is operated; dividing a period of the power voltage into a first phase period, a second phase period and a third phase period; chopping the power voltage at the first phase period when a user adjust the dimming control interface to turn on a first color light; chopping the power voltage at the second phase period when a user adjust the dimming control interface to turn on a second color light; chopping the power voltage at the third phase period when a user adjust the dimming control interface to turn on a mix color light, wherein the mix color light is to combine the first color light and the second color light.

Abstract: A method and an apparatus for adjusting color temperature or luminance of lamp are provided in the present invention. The lamp at least includes a white light and a warm white light, and the method includes the steps of: providing a control interface circuit, which is configured at the position of the lamp switch on the wall, wherein the control interface circuit receives an AC signal and outputs a phase chopping signal according to a user's operation; asymmetrically cutting the AC signal to obtain the phase chopping signal when the user uses the control interface circuit to adjust a luminance and/or a color temperature.

Abstract: Disclosed is an Ping-Pong Type Battery Management system. The Ping-Pong Type Battery Management system includes first and second battery packs, first and second battery switches, a sensing and controlling module, a supply power regulation module and a load power regulation module. The first battery switch is formed on the first battery pack. The second battery switch is formed on the second battery pack. The sensing and controlling module is connected to the first and second battery packs and the first and second battery switches. The supply power regulation module is connected to the first and second battery switches. The load power regulation module is connected to the first and second battery switches.

Abstract: The present invention discloses an actual roadway condition simulation system and method. The system includes a driving recoding device, a computer and a training platform. The computer receives and calculates data filed in the driving recording device and then transmits the data to the training platform, and the training platform produces resistance strength. The method includes: the driving recording device receiving a GPS positing packet signal and accessing data to be filed, and then transmitting the data to the computer; the computer displaying an electronic map and a driving path track; and the training platform producing resistance strength, thereby simulating the variations of the resistance strength of an actual path and achieving the effect of simulating actual roadway condition.