Three-channel PWM is outputted,wide frequency range and the duty ratio can be adjusted independently The value range of dutyfactor: 0~100%,100% is represented by A0%. Frequency is divided into four areas,automatic switching: 1. XXX(No decimal point): 1HZ Stepping Unit,Range:1Hz~999Hz; 2. X.XX(The decimal is in place):0.01KHZ Stepping Unit,Range: 1.00Khz~9.99Khz; 3. X.XX(The decimal is in the tens place):0.1KHZ Stepping Unit,Range: 10.0Khz~99.9Khz; 4. X.X.X(The decimal is in the place):1KHZ Stepping Unit,Range: 1Khz~150Khz; E.g. ,frequency display:100 the pulse of 100Hz ; 1.01 the pulse of 1.01KHz; 54.1 the pulse of 54.1KHz; 1.2.4 the pulse of 124Hz All parameters setted up can be automatically saved in case of power cut., Manufacturer: Jnchdghwa