US Patent No. 9,461,595

INTEGRATOR FOR CLASS D AUDIO AMPLIFIER


Patent No. 9,461,595
Issue Date October 04, 2016
Title Integrator For Class D Audio Amplifier
Inventorship Jingxue Lu, San Diego, CA (US)
Matthew David Sienko, San Digeo, CA (US)
Ankit Srivastava, San Diego, CA (US)
Manu Mishra, San Diego, CA (US)
Assignee QUALCOMM INCOPORATED, San Diego, CA (US)

Claim of US Patent No. 9,461,595

1. An apparatus comprising:
voltage-to-current conversion circuitry comprising a first voltage-to-current converter having a differential output and a
second voltage-to-current converter, the first voltage-to-current converter comprising an input voltage-to-current converter,
the second voltage-to-current converter comprising a first feedback voltage-to-current converter and a second feedback voltage-to-current
converter; and

a capacitor coupled to the first voltage-to-current converter and to the second voltage-to-current converter, wherein the
first voltage-to-current converter and the second voltage-to-current converter are configured to selectively charge and discharge
the capacitor.