US 9,310,828 B2Granted

Complementary output generator module

AssigneeMicrochip Technology Incorporated

InventorsSean Stacy Steedman, Zeke Lundstrum, Cristian Nicolae Groza, Sebastian Dan Copacian, Hartono DArmawaskita

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Abstract

A complementary output generator (COG) module generates at least two complementary outputs determined by rising and falling event sources. In a simple configuration of the COG module, the rising and falling event sources are the same signal which is a signal having the desired period and duty cycle. The COG module converts this single signal input into dual complementary outputs. The frequency and duty cycle of the dual outputs substantially match those of the single input signal. Blanking and deadband times may be introduced between the complementary outputs, and the dual complementary outputs may also be phase delayed. In addition the COG module may provide up to four outputs for controlling half and full-wave bridge power applications.

Claims35

Dependent claims

A complementary output generator module for a microcontroller, wherein the complimentary output generator is configurable through a processing core of the microcontroller and comprises:

a clock input coupled to a clock source;
a plurality of rising event inputs that are programmably selectable, wherein at least one of the selected rising event inputs initiates a rising event signal synchronous with the clock source when at least one rising event occurs at a respective selected one of the rising event inputs;
a plurality of falling event inputs that are programmably selectable, wherein at least one of the selected falling event inputs initiates a falling event signal synchronous with the clock source when at least one falling event occurs at a respective selected one of the falling event inputs;
and
a plurality of outputs, wherein
a first one of the plurality of outputs asserts a first output drive signal upon detection of the rising event signal until detection of the falling event signal, and
a second one of the plurality of outputs asserts a second output drive signal upon detection of the falling event signal until detection of a next rising event signal.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/080,322Filed 14 Nov 2013 · us provisional application
Priority: 15 Nov 2012
Published: US 2014/0136876 A115 May 2014
Granted: 12 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

G06F 1/06
Generating or distributing clock signals or signals derived directly therefrom: clock generators producing several clock signals
H03K 5/05
By increasing duration; by decreasing duration: by the use of clock signals or other time reference signals
H03K 5/1515
With two complementary outputs: non-overlapping
H03K 7/08
Modulating pulses with a continuously-variable modulating signal: duration or width modulation ; Duty cycle modulation