A load management system for monitoring the output from a power supply and
managing the load on said power supply, said load management system
comprising a hysteresis circuit for signaling a load element to stop
drawing current when an output voltage at said output falls below a first
threshold and for signaling said load element to resume drawing current
when said output voltage rises above a second threshold, said hysteresis
circuit comprising a first state sensing circuit having an input coupled
to said output and for signaling whether said output voltage is greater
than or less than said first voltage threshold, a second state sensing
circuit having an input coupled to said output and for signaling whether
said output voltage is greater than or less than a second voltage
threshold, and a state transition circuit having a first input coupled to
the output of said first state sensing circuit and a second input coupled
to the output of said second state sensing circuit, said state transition
circuit having an output for setting a first control signal to a first
state when said output voltage falls below said first threshold and
resetting said first control signal to a second state when said output
voltage rises above said second threshold.