Lawrence E Connell, 67Naperville, IL

6348781, Feb 19, 2002

Dec 11, 2000

09/733722

Pallab Midya - Schaumburg IL
Lawrence E. Connell - Naperville IL
Kenneth R. Haddad - Arlington Heights IL

Motorola, Inc. - Schaumburg IL

G05F 1613

323224, 323283, 323259, 323222

A buck or boost (BOB) power converter circuit. A buck converter is cascaded with a boost converter to form a buck or boost circuit ( ). The BOB converter is controlled by a controller ( ) such that only the buck or boost converter is operating at any given time. A reference signal V can be applied to the controller ( ) such that the output voltage from the converter closely tracks the reference signal. Positive and negative ramp signals are generated and an error feedback signal is compared with the ramp signals to control the output in accord with V. This is useful in application of the output voltage as the power supply to an RF Power Amplifier ( ) so that the reference signal can represent the envelope of a signal to be transmitted and the RF PA ( ) can operate at high efficiency.

6441594, Aug 27, 2002

Apr 27, 2001

09/845059

Lawrence Edwin Connell - Naperville IL
Daniel Patrick McCarthy - Elk-Grove Village IL

Motorola Inc. - Schaumburg IL

G05F 140

323274, 323276

A voltage regulator for isolating radio frequency circuits from on chip digital circuit originated noise and an integrated circuit chip including the voltage regulator. The voltage regulator includes regulator device (a PFET) driven by a sense amplifier to derive a regulator voltage from a supply voltage. Another sense amplifier senses changes in output load and adjusts current flow through a current shunt so that the current shunt shunts excess load current. The sense amplifier driving the voltage regulator device senses current flow through the current shunt and adjusts the current supplied by the regulator device to reduce excess current. The current shunt is a series connected PFET and NFET diode , with the gate of the PFET driven to control current flow. Each of the sense amplifiers includes a pair of PFETs and a pair of NFETs , the drain of each PFET of the pair is tied to a corresponding drain of one of the pair of NFETs. A voltage divider connected between the regulator voltage and ground provides a sense voltage to the output sense amplifier so that the output sense amplifier compares the sense voltage against a reference voltage (VREF) to determine whether the regulator device is providing too much, not enough or just the right output current level.

6559723, May 6, 2003

Sep 4, 2001

09/946030

Neal W. Hollenbeck - Palatine IL
Lawrence Edwin Connell - Naperville IL

Motorola, Inc. - Schaumburg IL

H03F 304

330301, 330253, 330327, 330318

A single ended input differential output amplifier ( ) and integrated circuit including such an amplifier ( ). A pair of load resistors ( ) are connected between a supply voltage (V ) and differential outputs OUTP and OUTM. An inductor ( ) is connected between input RFIN and a source bias voltage V. A first field effect transistor (FET) ( ) is connected, drain to source, between load resistor ( ) at output OUTP and inductor ( ) at RFIN. A second FET ( ) is connected, drain to source, between the second load resistor ( ) at output OUTM and the source bias voltage V. A gate bias voltage V is connected to the gate of FET ( ) and through resistor ( ) to the gate of FET ( ). A coupling capacitor ( ) is connected between the input RFIN and the gate of FET ( ). The gate of FET ( ) may be connected to gate bias voltage V through a second gate bias resistor ( ) and a second coupling capacitor ( ) may couple the source of FET ( ) to the gate of FET ( ), thereby providing common mode rejection for noise, e. g. , substrate noise, experienced at inductor ( ).

6621348, Sep 16, 2003

Oct 25, 2001

10/001388

Lawrence E. Connell - Naperville IL
Neal W. Hollenbeck - Palatine IL

Motorola, Inc. - Schaumburg IL

H03F 122

330296, 330285, 330311

A high gain wide-band width RF amplifier with automatic bias supply regulation. The load supply is actively adjusted in response to the amplifiers output signal level. At small output signals effective load supply voltage is minimum and at larger output signals the effective load supply voltages is maximized. The amplifier includes a differential pair of field effect transistors (FETs) connected at common source connection and biased by current bias FET which is connected between common source connection and amplifier signal input RFIN. A bias voltage (V ) is applied to the gate of bias device and an automatic gain control voltage (V ) is applied to the gates of differential FET pair. The automatic bias supply circuit is an active load and includes resistors , capacitor and a differential amplifier. Capacitor is connected between the negative input and the output of differential amplifier.

6657502, Dec 2, 2003

Oct 1, 2001

09/968171

Michael L. Bushman - Hanover Park IL
Lawrence E. Connell - Hanover Park IL

Motorola, Inc. - Schaumburg IL

H03B 2700

331 57, 331 45, 331135, 331175

A multiphase voltage controlled oscillator (e. g. , a quadrature VCO) which includes multiple voltage controllable transconductance phase drivers and The output of each voltage controllable transconductance phase driver supplies one of 4 oscillator phases and receives 2 of the 4 phases as inputs. Each of the voltage controllable transconductance phase drivers and corresponds to a pair of controllable transconductance inverting amplifiers The controllable transconductance inverting amplifiers may be a simple inverter that includes N-type FET (NFET) and P-type FET (PFET) Transconductance is controlled in the simple inverter by raising or lowering supply voltage (V ) levels. A more complex controllable transconductance inverting amplifier may be used, replacing PFET with series connected PFETs The gate of one PFET is controlled by a bias control voltage V. For additional sensitivity and control PFETs may each be replaced with parallel pairs of PFETs and In addition to a quadrature VCO, an N phase oscillator may be formed with each phase generated by a controllable transconductance functional block, appropriately selecting block inputs from output phases.

6750704, Jun 15, 2004

Jan 9, 2003

10/340335

Lawrence Edwin Connell - Naperville IL
Craig S. Petrie - Provo UT
Matthew R. Miller - Palatine IL

Motorola, Inc. - Schaumburg IL

H03F 102

330 9, 330 51, 330253, 330258

A differential amplifier comprises a differential input stage including first and second input devices and has first and second input electrodes and first and second output terminals. A differential load stage includes first and second load devices having first and second control electrodes respectively. The load stage is coupled to the differential input stage and to the first and second output terminals. First and second separate capacitive biasing networks are coupled to the first and second output terminals and respectively to the first and second control electrodes. During an offset-cancellation phase, the input electrodes are coupled to a common voltage. During an amplification phase, a differential input signal is applied to the input electrodes.

6920316, Jul 19, 2005

Sep 4, 2001

09/946010

Lawrence Edwin Connell - Naperville IL, US
Neal W. Hollenbeck - Palatine IL, US
Michael Lee Bushman - Hanover Park IL, US
Daniel Patrick McCarthy - Elk Grove Village IL, US

Freescale Semiconductor, Inc. - Austin TX

H04B001/26
H04B001/18

4551831, 4551801, 4551821, 4551951, 4551961

A regulation circuit, incorporated in a single integrated circuit with a first circuit load, which as an input coupled to a power supply which produces a source voltage, and a first output coupled to the first circuit load. The regulation circuit comprises an input capacitor for reducing the magnitude of a voltage change at the first output, and at least a first voltage regulator for producing a predetermined voltage at the first load.

6990164, Jan 24, 2006

Oct 1, 2001

09/968178

Michael L. Bushman - Hanover Park IL, US
Lawrence E. Connell - Naperville IL, US

Freescale Semiconductor, Inc. - Austin TX

H03D 3/24

375376, 327156, 455260

A frequency synthesizer comprising a charge pump , a loop filter , a loop divider , and an active and dual port VCO. An integrator low pass filters a steering voltage to provide a low frequency path while the steering voltage provides a high frequency path. Both steering paths are connected to dual port VCO. The dual port VCO is a single frequency generator which is controlled by two control signals. The dual port VCO , effectively provides the equivalent of a low frequency path and a high frequency noise compensation path , both paths effectively merging by superposition.