摘要:
A surge protection circuit and a connector and an electronic apparatus using the circuit are provided. The connector includes a plurality of metal lines (301-308), a plurality of resistors (311-314), a ground metal (201), and a capacitor (300). Each metal line has a pointed end. There is a distance between the pointed end of the metal lines and a pointed end of the first end of each resistor corresponding to the metal line. The capacitor is coupled between the ground metal and second end of the resistors. Thus the surge endurance of product can be increased by the invention, and the damage to the internal components of product can be prevented.
摘要:
A host computer includes a host machine and a projector. The host machine has a keyboard. The projector is positioned about the keyboard and includes a projection lens. A using position of the projection lens is higher than a received position of the projection lens.
摘要:
A connector including a first pin (540) and a second pin (530) is disclosed. The first pin includes a first side including a first protrudent part (P6). The second pin includes a second side facing the first side. The first protrudent part approaches the second side. A printed circuit board (200) including a first pad (218) and a second pad (219) is disclosed. The first pad includes a first side including a first protrudent part (P1). The second pad includes a second side facing the first side. The first protrudent part approaches the second side.
摘要:
Connection apparatuses are provided, in which at least one isolation transformer comprises a primary coil and a secondary coil each comprising a first end, a second end and a tap, and a high voltage impulse protector is disposed between the primary coil of the isolation transformer and a ground terminal, discharging an overcurrent caused by a high voltage impulse to the ground terminal by point discharge when a high voltage impulse event occurs.