18-09-2014 дата публикации
Номер: US20140266119A1
Принадлежит:
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. 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; anda 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.2. The apparatus of further comprises a logic unit operable to override output of a comparator to control the bridge controller.3. The apparatus of further comprises:a second inductor or resistor, coupled to the capacitor, and for coupling to the load;a second high-side switch coupled to the second inductor or resistor; anda clamp controller to control when to turn on and off the second high-side switch.4. The apparatus of further comprises:a second low-side switch coupled to the second inductor.5. The apparatus of claim 3 , wherein the second inductor claim 3 , second high-side switch claim 3 , second low-side switch claim 3 , and clamp controller are smaller in size than the first inductor claim 3 ...
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