Digital PWM controller

2:

• The system of claim 1, wherein said digital controller comprises a state machine that is operable generate said switching control signals.

3:

• The system of claim 2, wherein said state machine is register driven from information contained in a plurality of registers, with the contents of said registers comprising said operating parameters, which said registers are controlled by said microcontroller.

4:

• The system of claim 2, wherein said state machine is a clocked state machine that is clocked at the switching frequency of the power converter, such that each change in said switching control signals occurs in a single clock cycle of the switching frequency and said state machine.

5:

• The system of claim 1, wherein said microcontroller is operable to monitor the operating parameters of the operation of said digital controller during control of the power converter.

6:

• The system of claim 5, wherein said microcontroller is operable to change said parameters as a result of the monitored operating parameters.

7:

• The system of claim 1, wherein said microcontroller comprises an instruction based engine operating on stored instructions stored in an associated memory, said instruction based engine clocked with a microcontroller clock.

9:

• The system of claim 8, wherein said digital compensator operates in accordance with a proportional-integral-derivative (PID) control law.

11:

• The system of claim 10, wherein said digital controller and said microcontroller are all fabricated on a single semiconductor substrate to provide a monolithic device.

12:

• The system of claim 10, wherein said digital pulse width modulator comprises a state machine that is operable generate said digital pulses.

13:

• The system of claim 12, wherein said parameter plurality of control blocks comprise a plurality of registers for parameterizing said digital pulse width modulator and said state machine is register driven from information contained in said plurality of registers, with the contents of said registers comprising said operating parameters, which said registers are controlled by said microcontroller.

14:

• The system of claim 12, wherein said state machine is a clocked state machine that is clocked at the switching frequency of the power converter, such that each change in said switching control signals occurs in a single clock cycle of the switching frequency and said state machine.

15:

• The system of claim 10, wherein said microcontroller is operable to monitor the operating parameters of the operation of said digital controller during control of the power converter.

16:

• The system of claim 15, wherein said microcontroller is operable to change said parameters as a result of the monitored operating parameters.

17:

• The system of claim 10, wherein said microcontroller comprises an instruction based engine operating on stored instructions stored in an associated memory, said instruction based engine clocked with a microcontroller clock.

18:

• The system of claim 10, wherein said data converter comprises a differential analog-to-digital converter (ADC) for receiving said digital sense signal and said desired reference voltage for converting the difference therebetween to said digital error signal.

19:

• the system of claim 10, wherein said digital controller further includes a digital compensator for processing of said digital error signal to compensate for loop phase to provide a compensated digital error signal.

20:

• The system of claim 19, wherein said digital compensator operates in accordance with a proportional-integral-derivative (PID) control law.

23:

• The system of claim 22, wherein said digital control system comprises a state machine that is operable generate said switching control signals.

24:

• The system of claim 23, wherein said state machine is register driven from information contained in a plurality of registers, with the contents of said registers comprising said operating parameters, which said registers are controlled by said microcontroller and are loaded through said control inputs.

25:

• The system of claim 23, wherein said state machine is a clocked state machine that is clocked at the switching frequency of the power converter, such that each change in said switching control signals occurs in a single clock cycle of the switching frequency and said state machine.

26:

• The system of claim 22, wherein said microcontroller is operable to monitor the operating parameters of the operation of said digital control system during control of the power converter through said monitor inputs.

27:

• The system of claim 26, wherein said microcontroller is operable to change said parameters as a result of the monitored operating parameters.

28:

• The system of claim 22, wherein said microcontroller comprises an instruction based engine operating on stored instructions stored in an associated memory, said instruction based engine clocked with a microcontroller clock.

30:

• The system of claim 29, wherein said digital compensator operates in accordance with a proportional-integral-derivative (PID) control law.