摘要：设计说明显示如何延长软启动期间。 4个外部元件，延长了升压控制器的软起动。 MAX668控制器，电源供应器MAX1856 ， MAX4130运算放大器的特色。 Maxim > App Notes > Automotive Keywords: soft-start, step-up controller, inverting transformer flyback controller Nov 01, 2000 APPLICATION NOTE 436 Extending Soft-Start Abstract:Design note shows how to extend a soft-start period. Four external components extend the soft-start of a step-up controller. The MAX668 controller, MAX1856 power supply, and MAX4130 op amps are featured. Additional information: Technical support: power This circuit uses the MAX668 and a transformer (which will need about a 1:2:2:2 turns ratio) to make a flyback converter. The op amp inverts the feedback from both negative output voltages. In systems where cards are hot-plugged, it is desirable sometimes to extend the soft-st……