31. Each temperature setting has a different duty cycle . 32. This shows that it is possible to adjust the impedance ratio by adjusting the duty cycle . 33. The four operating modes were : real time, telemetry store, duty cycle store, and memory readout. 34. The VVVF has high torque and duty cycle capabilities, rated at a power of 200 kW. 35. A true square wave has a 50 % duty cycle ( equal high and low periods ). 36. The duty cycle equation is somewhat recursive. 37. The duty cycle can only be varied in discrete steps, as a function of the counter resolution. 38. Unlike the Game Boy, the pulse channels on the Commodore 64 allowed full control over wave duty cycles . 39. Exceptional duty cycles or specialized motor types may require a different NEMA starter size than the nominal rating. 40. Several hundred thousand sparks occur per second, with the actual duty cycle carefully controlled by the setup parameters.