Patent ID: 8848851

Claim:
An output signal adjustment system, comprising: a signal adjustment unit; a reference slope generating unit providing a reference slope of a rising edge and a falling edge of an output signal; a slope detecting unit connected with said signal adjustment unit and said reference slope generating unit; a voltage-to-current conversion unit connected with said slope detecting unit; and a control unit connected with said voltage-to-current conversion unit, wherein said slope detecting unit compares said reference slope of said rising and falling edges of said output signal of said reference slope generating unit with a slope of a rising edge and a falling edge of an output signal of said signal adjustment unit, and outputs a voltage signal to said voltage-to-current conversion unit, said voltage-to-current conversion unit converts said voltage signal into a current signal, said control unit outputs a control signal controlling an adjustment of said signal adjustment unit to said slope of said rising and falling edges of said output signal based on said current signal; wherein said signal adjustment unit has a first output end and a second output end, and comprises at least two adjustment circuits connected with each other in parallel, wherein each of said adjustment circuits comprises a first switch, a second switch, a third switch, a fourth switch, a first current source and a second current source, wherein a first end of said first switch and a first end of said second switch are connected with a power supply through said first current source, a second end of said second switch is connected with said first output end, a second end of said first switch is connected with said second output end, a first end of said third switch and a first end of said fourth switch are connected with ground through said second current source, a second end of said third switch is connected with said first output end, and a second end of said fourth switch is connected with said second output end.