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Egret Speed Controller
This page is for reference only: the Eagle is no longer manufactured. Suggested replacement is the Porter. The Egret is essentially the circuit board used in the Eagle series. It has all the features of Read More
- Current models
- Pro-150
- Pro-150 Fault Finding Guide
- Pro-150 Pt Fault Code
- Pro-150 Mechanical Information
- Pro-150 Basic Wiring Diagram
- DMR-203: Use with PRO-150 Controllers
- Pro-150 Capacitor Modification
- PRO-150 Issue History
- PRO-150 Current Limit
- Wiring for Push Button Use
- PRO-150 Joystick Programming
- Multiple Controllers [Double Heading]
- Pro-150
- 4QD
- Ampflow motor
- Damage From Blown Mosfets
- DMR-203: Use with 4QD Series Controllers
- Battery Contactor
- Adjustment for 48V
- Overheating in Boats
- Converting Parking Brake to Brake Light
- Disabling HPLO on Early 4QD Models
- Inhibit Ramp Modification [4QD series]
- Over voltage protection in the 4QD series
- Deadband values and removal
- How to dismantle the 4QD series
- Testing the 4QD Base Board and MOSFETs
- Reverse Acceptance Threshold [RAT] Modification
- 4QD version history
- Current limit resistors
- Control Board Modification [Pre June 2010]
- Use with Tacho Feedback Board
- 4QD Series: Use with Series Wound Motors
- Forward / Off / Reverse Mode (4QD Series)
- Fault finding on the 4QD series
- Reversing Latch Modification [pre issue 16]
- Reverse Speed Modification [pre issue 17]
- Damage from a Reversed Battery (4QD Series)
- Mixing 4QD 150 / 200 / 300 series boards
- Inhibit
- Multiple Controllers [Double Heading]
- 4QD
- Pro-120 Mk2
- Current Limiting in the Pro-120 [and others]
- Pro-120 Mk2 History
- Pro-120 Key Components
- Modifying the Pro-120 for other voltages
- Pro-120 Modification to give Uni-Directional Control
- Pro-120 Robot Wars Version
- Pro-120 Ignition Options
- Earth Fuses: Why Do They Blow?
- Pro-120 Fault Finding Tips
- PRO-120 Ramp Reduction
- Fitting Expansion Connector
- PRO-120: Multiple Slaves
- Internal Power Supply and Protection Circuitry
- Wiring for Push Button Use
- Pro-120 Mk2
- Installation and Wiring Diagrams
- Controller Wiring Diagrams
- Double Heading Wiring Diagram [DNO]
- Driving the DNO by Raspberry Pi
- Pro-150 Basic Wiring Diagram
- Driving the Porter by Raspberry Pi
- Switching for Double Heading
- Collision Detection / Auto Reversing Circuits
- Typical Wiring for the PRO, DNO, VTX and NCC Controllers
- Wiring for Hand Control and Radio Control
- Wiring for Push Button Use
- UNI / Egret Wiring Options
- Multiple Controllers [Double Heading]
- Controller Wiring Diagrams
- Technical Background Information
- Batteries
- What is PWM
- Surge Currents
- Speed Stability
- Quadrants
- Heat
- Energy and Losses
- POT Dead Band
- Earth Track Fuse and Earth Loops
- Waveforms and Fault Finding
- Back EMF & Internal Resistance
- Guided tour articles
- Full Bridge
- Choosing a Controller [tour 1]
- What Does a Motor Speed Controller Do?
- Battery current and motor current [tour 4]
- Half bridge [tour 6]
- MOSFETs [tour 5]
- Switching frequency [tour 7]
- Regenerative braking [tour 8]
- Current limit [tour 9]
- Heatsinks [tour 11]
- Thermal shutdown [tour 10]
- Power down state [tour 13]
- Ramps [tour 14]
- Ignition [tour 12]
- Inhibit switch / footbrake - 4QD series only [tour 16]
- Forward / off / reverse mode or push-button operation [tour 17]
- Overvoltage protection [tour 18]
- Reversing [tour 15]
- Gain adjustment, pots, and inputs [tour 20]
- Joystick [aka wig-wag] [tour 21]
- Parking brake driver [tour 22]
- Brake light driver [tour 23]
- Pot fault detection [tour 24]
- High pot lockout HPLO [tour 25]
- Undervoltage cutback [tour 19]
- Main capacitor [tour 27]
- Radio control interface [tour 28]
- Reverse polarity protection [tour 26]
- Tacho generator feedback [tour 29]
- Voltage following [tour 30]
- Double heading [tour 31]
- Guided tour articles
- Motors
- Motors in Series or Parallel
- Motor Manufacturers
- Motor Matching
- Motor Examples
- Motor Types [detail]
- Motor Types Overview
- Motor Rating Background Information
- Old Controllers
- PCB numbers
- NCC
- Fitting Expansion Connector
- Ramp Timings (NCC)
- Damage from Reversed Batteries (NCC/VTX)
- Internal Power Supply and Protection Circuitry
- NCC Speed Controller
- VTX and NCC Operating Voltages
- NCC Circuit Description
- VTX / NCC Fault Finding
- NCC Mark 2 Issue Number History
- NCC Mark 1 Issue Number History
- NCC Key Components
- NCC Zener Diode Failure
- NCC
- PRO-120 Mark 1
- Pro 120 Mark 1 Speed Controller
- Current Limiting in the Pro-120 [and others]
- Pro-120 Mk1 History
- Pro-120 Key Components
- Modifying the Pro-120 for other voltages
- Pro-120 Modification to give Uni-Directional Control
- Pro-120 Robot Wars Version
- Pro-120 Ignition Options
- Earth Fuses: Why Do They Blow?
- Battery Discharge Protection: PRO-120
- PRO-120 Ramp Reduction
- Fitting Expansion Connector
- Internal Power Supply and Protection Circuitry
- PRO 120 Mark 1 - Additional Diagrams
- PRO-120 Mark 1
- VTX
- VTX Speed Controller
- Fitting Expansion Connector
- Positional Servo Control [DNO / VTX]
- Waveforms and Fault Finding
- Damage from Reversed Batteries (NCC/VTX)
- Internal Power Supply and Protection Circuitry
- Wiring for Push Button Use
- VTX Modification History
- VTX and NCC Operating Voltages
- VTX / NCC Fault Finding
- VTX
