Patent ID: 7538592

Claim:
A pulse controller with dual latches in which two sets of latch units are used to receive a signal from a trigger signal source and a feedback from a rear end power output unit so as to generate a duty cycle of the power output unit, the pulse controller comprising: a first latch unit having a low level and a high level working states, wherein when the first latch unit is triggered, the original working state thereof is switched to one of the low level and the high level working states and maintained until being triggered again; and a second latch unit having a low level and a high level working states, wherein the working states of the second latch unit and the first latch unit are different but switched at the same time so as to form a complementary relationship therebetween, and wherein when the second latch unit is triggered, the first latch unit is driven to release voltage so as to latch the output at low level, and when the second latch unit receives the signal form the trigger signal source and the feedback from the power output unit, the first latch unit is driven to latch or release voltage level, thereby the complementary relationship between the first and the second latch units forms a duty cycle with low and high levels for controlling the power output unit; wherein a temperature compensating element is further included between the first and the second latch units.