The best way to encode pulsating signals is by using the UC2524DW voltage mode PWM controller from Texas Instruments. Its 2 PWM outputs produce a current of 100(Max) mA. This voltage mode driver supports boost|flyback|forward|full-bridge|half-bridge|push-pull topology. You can operate this at a switching frequency of 300(Typ) kHz. In order to ensure parts aren&s;t damaged by bulk packaging, this product comes in tube packaging to add a little more protection by storing the loose parts in an outer tube. This voltage mode driver has an operating temperature range of -25 В°C to 85 В°C. This device has a minimum operating supply voltage of 8 V and a maximum of 40 V. This voltage mode driver&s;s maximum duty cycle is 45 %.