Delay lamp circuit using application specific integrated circuit

A delay lamp made of Sanji light control special integrated circuit , the circuit is very simple. Fall in. H L2102 integrated circuit is a lamp timing
integrated circuit produced by Wuxi Aixinke Microelectronics Co., Ltd. (lmp, ¨'WV.7W. wx.sjc.tⅡn). The timing time can be from seconds to minutes. , well can be determined at will. HL2102 adopts standard DIP 8 package. The functions of each pin are shown in Table 3.1. The power supply voltage range is 2-6V.     Figure 85 can be used for lighting when you get up temporarily at night . When using it, just press the button switch SH iLi and the light F will light up. After a delay of tens of seconds, the light will go out in white. During the period when the light is on, if SB is pressed again, the light F can be turned off.     Since the delay time of this circuit is short, the I{ and ^ terminals of the integrated block HI.2102, that is, the ⑥ and ⑦ pins must be connected in parallel. The timing capacitor H needs to adjust the resistance , and then the timing can be obtained from several seconds to several seconds. Ten seconds timer. If you require a higher K timing, you can connect a timing capacitor in parallel to the ⑥ and ⑦ pins of HU102 . The T power supply of I11,2102 is composed of capacitor [1= step-down, vr] half-wave rectification, vs stabilization and C. Obtained by filtering.