NON-LINEAR CONTROL FOR VOLTAGE REGULATOR
First Claim
1. An apparatus comprising:
- a first inductor for coupling to a load;
a capacitor, coupled to the first inductor, and for coupling to the load;
a first high-side switch coupled to the first inductor;
a first low-side switch coupled to the first inductor;
a bridge controller to control when to turn on and off the first high-side and first low-side switches; and
a non-linear control (NLC) unit to monitor output voltage on the load, and to cause the bridge controller to turn on the first high-side switch and turn off the first low-side switch when a voltage droop is detected on the load.
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Accused Products
Abstract
Described is an apparatus having a non-linear control to manage power supply droop at an output of a voltage regulator. The apparatus comprises: a first inductor for coupling to a load; a capacitor, coupled to the first inductor, and for coupling to the load; a first high-side switch couple to the first inductor; a first low-side switch coupled to the first inductor; a bridge controller to control when to turn on and off the first high-side and first low-side switches; and a non-linear control (NLC) unit to monitor output voltage on the load, and to cause the bridge controller to turn on the first high-side switch and turn off the first low-side switch when a voltage droop is detected on the load.
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Citations
25 Claims
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1. An apparatus comprising:
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a first inductor for coupling to a load; a capacitor, coupled to the first inductor, and for coupling to the load; a first high-side switch coupled to the first inductor; a first low-side switch coupled to the first inductor; a bridge controller to control when to turn on and off the first high-side and first low-side switches; and a non-linear control (NLC) unit to monitor output voltage on the load, and to cause the bridge controller to turn on the first high-side switch and turn off the first low-side switch when a voltage droop is detected on the load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An apparatus comprising:
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a bridge controller to control when to turn on and off first high-side and first low-side switches; a non-linear control (NLC) unit to monitor output voltage on a load, and to cause the bridge controller to turn on the first high-side switch and turn off the first low-side switch when a voltage droop is detected on the load; a comparator to compare a periodic signal relative to a reference voltage; and a logic unit operable to override output of the comparator to control the bridge controller according to an output of the NLC unit. - View Dependent Claims (19, 20, 21)
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22. A system comprising:
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a memory unit; a processor coupled to the memory unit, the processor including a voltage regulator, the voltage regulator comprising; a first inductor for coupling to a load; a capacitor, coupled to the first inductor, and for coupling to the load; a first high-side switch coupled to the first inductor; a first low-side switch coupled to the first inductor; a bridge controller to control when to turn on and off the first high-side and first low-side switches; and a non-linear control (NLC) unit to monitor output voltage on the load, and to cause the bridge controller to turn on the first high-side switch and turn off the first low-side switch when a voltage droop is detected on the load; and a wireless interface for allowing the processor to communicate with other devices. - View Dependent Claims (23, 24, 25)
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Specification