| 摘要 |
PURPOSE: A DC power supply method is provided to prevent erroneous operation and damage of electronic circuit caused due to an electrostatic charge by protecting part of electronic device from electrostatic charge. CONSTITUTION: A bipolar diode using PN junction property is attached to a negative power of a PCB of an electronic device, or negative power and product case. Alternatively, the bipolar diode is attached to a negative power and a selected part of product, or a negative power of a control box of a motor vehicle. Alternatively, a power unit of a motor vehicle is separated from the vehicle body, or a car stereo set is separated from the negative power unit of motor vehicle. Alternatively, grounding portion of noise filter is connected to a negative power unit. |
