COMBINATORIAL/SEQUENTIAL PULSE WIDTH MODULATION

A number of standard PWM generators produce PWM signals that may be used to drive the power stages for Full-Bridge, Feed-Forward, Push-Pull, Phase-Shift Zero Voltage Transition (ZVT), and other switched mode power supply (SMPS) conversion topologies. These PWM signals may be fed to logic functions of a combinatorial logic block. Appropriate PWM signals are selected as operands along with desired logic function(s) that operates on these input operands. The resultant combinatorial PWM signals may then be used directly or may be fed through dead-time processing circuitry prior to outputting to an application circuit. In addition to the combinatorial logic functions, sequential logic functions may also be used to provide sequential PWM signals, e.g., synchronous sequential, asynchronous sequential, and/or sequential-combinatorial PWM signals.