由于本刊编辑人员审稿不严,今年第5期《气敏器件QM—N5应用一例》中的电路出版后发现有错,图中1.5V电池与稳压块7809输出端连接将7809输出短路。如在7809③端至电池正极间串入合适的限流电阻还勉强说得过去,但在交流供电电路中要再用需经常更换,且电压波动较大的电池供电亦不适当。此处电池似应为0.1μ电容,被作者误认为是一节电池,并按 Due to the editorial staff lax review, No. 5 this year, “Gas Sensor QM-N5 application example,” found in the circuit after the publication of errors, the figure 1.5V battery and regulator 7809 output termination of the 7809 output short circuit . Such as the 7809 ③ end to the battery positive string into the appropriate current limiting resistor barely justified in the past, but in the AC power supply circuit to be replaced frequently, and the voltage fluctuation of the battery-powered is not appropriate. Here the battery should be 0.1μ capacitor, the author mistakenly think it is a battery, and press