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Ovation e-Amp: A 180 Watt Class AB VFA Featuring Ultra Low Distortion
»
e-Amp Front End model
e-Amp Front End model
Ovation e-Amp Modules
Ovation e-Amp Assembly and Testing
Ovation e-Amp Sound Tests
Ovation e-Amp and Ovation 250
Ovation e-Amp Next to B&W 703 Speaker
e-Amp on the Left and Ovation 250 on the Right
Fig 2 – Degenerated Bipolar LTP Pair Linearity
Fig 4 – Current Source Positive Supply Rejection
Fig 4 – LTP Current Source Options
Fig 6 – Current Source -ve Rail Rejection Performance
Fig 7 – Beta Enhanced VAS (or more correctly TIS)
Fig 7 – Cascoded VAS Stage
Fig 6 – Beta Enhanced VAS (or more correctly TIS)
Fig 8 – Hawksford VAS
Fig 9 – Sticky Rail
Fig 9 – Sticky Rail Syndrome (left without Baker clamps, right with clamps)
Fig 9 – Sticky Rail – LHS without Baker clamps – RHS with Clamps
Fig 10 – e-Amp Ripple Eater
Fig 10 – e-Amp Ripple Eater
Fig 2 – Bipolar LTP Stage Linerarity After Degeneration
Fig 1 – LTP Model
Fig 2 – Bipolar LTP Linearity with Degeneration
Fig 3 – e-Amp Input Stage Overload Capability
Fig 10 – SOA of Output Devices
Fig 10 – SOA of Output Devices
Fig 10 – SOA of Output Devices
Fig 11 – Conventionl Single Slope Vbe compensation
Fig 12 – Two Slope Thermal compensation
Fig 13 – e-Amp Vbe Thermal Sensor
Fig 13 – e-Amp Loop Gain and Phase – Standard Millier Compensation
Fig 14 – e-Amp Transitional Miller Compensation (TMC) Loop Gain and Phase
Fig 15 – e-Amp Wide Band Hybrid Compensation
Fig 16 – e-Amp Protection Circuit Diagram
Fig 1 – Ovation e-Amp Circuit Diagram
Ovation e-Amp Specifications
Fig 18 – e-Amp Protection Board
The Ovation e-Amp
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