Power delivery control and over current protection

1 . A power system comprising:

a first power converter operative to:

receive a first input voltage;

via first closed loop regulation implemented by the first power converter, convert the first input voltage into a first output voltage supplied to a second power converter, a magnitude of the first output voltage regulated by the first power converter in accordance with a first setpoint reference voltage; and

dynamically adjust a magnitude of the first setpoint reference voltage used to regulate the magnitude of the first output voltage based on: i) a magnitude of the first input voltage, and ii) a magnitude of first output current supplied by the first output voltage to the second power converter.

2 . An analyzer operative to:

receive a sample value indicative of the magnitude of the first output voltage produced by the first power converter in claim 1 ; and

determine an anomaly condition associated with the first power converter based on a first operational range in which the sample value resides, the first operational range being one of multiple operational ranges.

3 . The power system as in claim 1 , wherein the first power converter includes a first setpoint reference voltage generator operative to:

generate the first setpoint reference voltage based on: i) application of a first weight value to the magnitude of the first output current, and ii) application of a second weight value to a difference between the magnitude of the first input voltage and a nominal voltage value associated with generating the first input voltage.

4 . The power system as in claim 1 further comprising:

the second power converter, wherein the second power converter is operative to:

receive the first output voltage from the first power converter;

via second closed loop regulation, convert the first output voltage into a second output voltage; and

dynamically adjust a magnitude of a second setpoint reference voltage of regulating the second output voltage based on: i) a magnitude of the first output voltage received from the first power converter, and ii) a magnitude of second output current supplied by the second output voltage.

5 . The power system as in claim 4 further comprising:

a storage resource operative to store status information indicating different magnitudes of the first output voltage and the second output voltage at different instances of time; and

an analyzer operative to utilize the different magnitudes of the first output voltage and the second output voltage at the different instances of time to detect an anomaly associated with the second power converter producing the second output voltage.

6 . The power system as in claim 4 , wherein an anomalous condition of the second power converter producing the second output voltage causes an adjustment to the magnitude of the first setpoint reference voltage.

7 . The power system as in claim 6 , wherein the anomalous condition is excess current consumed by the second power converter to produce the second output voltage based on the first output voltage.

8 . The power system as in claim 1 further comprising:

a third power converter operative to:

receive the first input voltage;

via second closed loop regulation implemented by the third power converter, convert the first input voltage into a second output voltage; and

dynamically adjust a magnitude of a second setpoint reference voltage used to regulate a magnitude of the second output voltage based on: i) a magnitude of the first input voltage, and ii) a magnitude of second output current supplied by the second output voltage.

9 . The power system as in claim 8 , wherein an anomalous condition of the third power converter producing the second output voltage causes an adjustment to the magnitude of the first setpoint reference voltage.

10 . The power system as in claim 9 , wherein the anomalous condition is excess current consumed by the second power converter to produce the second output voltage based on the first input voltage.

11 . The power system as in claim 8 further comprising:

a storage resource operative to store status information indicating different magnitudes of the first output voltage and the second output voltage at different instances of time;

an analyzer operative to compare the different magnitudes of the first output voltage and the second output voltage at the different instances of time to detect an anomaly associated with the third power converter producing the second output voltage.

12 . The power system as in claim 11 , wherein the analyzer is operative to compare a current sample magnitude of the first output voltage and a current sample magnitude of the second output voltage to the status information to detect the anomaly.

13 . The power system as in claim 8 , wherein the dynamic adjustment of the magnitude of the first setpoint reference voltage and the dynamic adjustment of the magnitude of the second setpoint reference voltage increases a correlation between the second output voltage and the first output voltage.

14 . The power system as in claim 1 , wherein the first power converter includes a first setpoint reference voltage generator operative to:

receive a first target output voltage value assigned to the first power converter;

receive a first input voltage value indicative of the magnitude of the first input voltage;

receive a first output current value indicative of the magnitude of the first output current supplied by the first output voltage;

derive the first setpoint reference voltage for regulating the first output voltage based on the first target output voltage, the first input voltage value, and the first output current value; and

regulate the magnitude of the first output voltage to be substantially equal to the first setpoint reference voltage.

15 . A power distribution system comprising:

the first power converter in the second power converter as in claim 1 ; and

wherein the second power converter is operative to;

receive the first output voltage;

via second closed loop regulation, convert the first output voltage into a second output voltage; and

dynamically adjust a second setpoint reference voltage of regulating a magnitude of the second output voltage based on: i) a magnitude of the first output voltage, and ii) a magnitude of second output current, the second output current supplied by the second output voltage;

the power distribution system further comprising: a third power converter operative to convert the first output voltage into a third output voltage, the third output voltage regulated based on a third setpoint reference voltage, the third setpoint reference voltage generated based on a magnitude of third output current supplied by the third output voltage.

16 . The power system as in claim 1 , wherein the second power converter is operative to receive and convert the first output voltage into a second output voltage; and

wherein an anomalous condition of the second power converter producing the second output voltage is operative to cause an adjustment to the magnitude of the first setpoint reference voltage.

17 . The power system as in claim 16 , wherein the anomalous condition is decreased efficiency of the second power converter converting the first output voltage into the second output voltage.

18 . The power system as in claim 17 , wherein the decreased efficiency of the second power converter converting the first output voltage into the second output voltage increases a magnitude of the first output current supplied by the first output voltage to the second power converter; and

wherein the increased magnitude of the first output current results in the adjustment to the magnitude of the first setpoint reference voltage.

19 . The power system as in claim 1 , wherein an anomaly condition associated with the second power converter receiving and converting the first output voltage into a second output voltage results in the dynamic adjustment of the magnitude of the first setpoint reference voltage.

20 . The power system as in claim 19 further comprising:

monitor hardware operative to determine occurrence of the anomaly condition associated with the second power converter based at least in part on the dynamically adjusted magnitude of the first setpoint reference voltage.

21 . The power system as in claim 19 further comprising:

monitor hardware operative to determine the anomaly condition associated with the second power converter based at least in part on a range in which the first output voltage resides.

22 . The power system as in claim 1 , wherein the second power converter is operative to convert the first output voltage into a second output voltage; and

the power system further comprising monitor hardware operative to:

receive a first sequence of sample voltages, the first sequence of sample voltages including a first sample of the first output voltage and a first sample of the second output voltage obtained at a first instance of time;

compare the first sequence of sample voltages to a second sequence of sample voltages, the second sequence of sample voltages including a second sample of the first output voltage and a second sample of the second output voltage obtained at a second instance of time, the second instance of time occurring before the first instance of time; and

based on a comparison of the first sequence of sample voltages and the second sequence of sample voltages, detect an anomaly associated with the second power converter.

23 . The power system as in claim 22 , wherein a magnitude of the second output voltage depends on a magnitude of the first output voltage and a magnitude of second output current supplied by the second output voltage.

24 . The power system as in claim 23 , wherein the monitor hardware is operative to detect the anomaly based on a detected difference between the first sequence of sample voltages and the second sequence of sample voltages.

25 . A method comprising:

receiving a first input voltage;

via first closed loop regulation, converting the first input voltage into a first output voltage supplied to a second power converter, a magnitude of the first output voltage being regulated in accordance with a first setpoint reference voltage; and

dynamically adjusting a magnitude of the first setpoint reference voltage used to regulate the first output voltage based on: i) a magnitude of the first input voltage, and ii) a magnitude of first output current supplied by the first output voltage to the second power converter.

26 . The method as in claim 25 , wherein dynamically adjusting the magnitude of the first setpoint reference voltage includes:

generating the first setpoint reference voltage based on: i) application of a first weight value to the magnitude of the first output current, and ii) application of second weight value to a difference between the magnitude of the first input voltage and a nominal voltage value of generating the first input voltage.