Abstract
With the development of application technique of the static electricity, more and more are becoming known by people about the static electricity. Because of its easy controlling and low requirements on the environment, this technique has been wildly applied in the fields of industries and electronics through the combination of electronic technology and the characteristics of the static electricity. High-voltage electrostatic suction whiteboard is one of these applications.
We will voltages through voltage DC rectifier way to increase its 5000 V to the high-pressure, and then added to the DC high-voltage electrostatic suction around the whiteboard of ionizing air, a free electronic. When the charged particles to the whiteboard and around the time its board will be in between, and it can be absorption in the paper above. Can not be directly due to the 6 V DC to boost, it is necessary to convert DC by the exchange, and then from their step-up transformers, because if rely on a direct voltage transformer to soar to 5000 V may cause damage to the transformer, so we should Rectification of times the pressure, the output voltage from the transformer times the pressure through the method of increasing the voltage to the requirements of 5000 V. However, in order to save power, can not lead with the long circuit, which will greatly reduce battery life, we design a timer to resolve the continued discharge of electricity caused by wear and tear, thereby to save power consumption. The use of capacitive-point of charge, will be able to control the continuing on-transistor, which will be able to play regularly switch to another through a relay circuit to achieve on-and off, we will delay the time as 20 seconds.
Keywords:High-voltage electrostatic Suction whiteboard Timer Times the pressure rectifier