Application Notes and Design Notes From Zetex
 

Application Notes

Design Notes

 

TRAC Application Notes


 
8W Fluorescent Lamp Inverter - Compact DC to AC Inversion for Efficient Lighting Systems. Portable Ni-Cd Battery Charger - Inexpensive Load Tolerant Step-up Energy Source. Infra Red Remote Control and Data Transmission. Centre Collector E-Line Applications.
Super E-Line Applications in Automotive Electronics The Use of Zetex E-Line Transistors in Motor and Solenoid Driver Functions within Printers The Use of Zetex E-Line Transistors in DC-DC Converters The ZTX415 Avalanche Mode Transistor
Zetex Variable Capacitance Diodes. Automotive Relay Drivers Using the ZVN4206AV Features and Applications of the FMMT618 and 619 The FMMT718 Range, Features and Applications
Transistor Considerations For LCD Backlighting Features and Applications of the FMMT617 and FMMT717 "SuperSOT" SOT23 Bipolar Transistors Automotive and Household Siren Driver Circuits Emergency Lighting Systems and Battery Powered Fluorescent Lighting
Power MOSFET Gate Driver Circuits using High Current Super-ß Transistors Component Reliability. Magnetoresistive Sensors Bipolar Transistor Considerations for Battery Powered Equipment
High Frequency DC-DC Conversion using High Current Bipolar Transistors Zetex SPICE Models An Introduction to the SM-8 Package. Soldering Surface Mount Devices.
Fast Charging Batteries with Zetex High Current PNP Transistors and Benchmarq Controller ICs. ZR431 Application Note. The ZLDO Series of Low Dropout Voltage Regulators A watershed for the 555 timer
Features and Applications of the ZDS1009 Current Mirror/Level Transistor      

Design Notes.

Light Coupled Speed Measurement using the BPW41 Photodiode. Automotive Alarm Siren Driver. Sonar Transducer Driver using TO92 Style Bipolar Transistors. LCD Display Fluorescent Backlighting.
High Current High Voltage Analogue Switches. Features and Applications of the SDA24 Schottky Array. Temperature Effects on Silicon Semiconductor Devices. The ZTX413 Avalanche Transistor.
Remote Control Servo Amplifier using Protection Free 1A DC Rated SOT23 Devices. Flash Gun Inverter using Super E-Line Bipolar Transistors. 6V Battery Operated Fluorescent Lamp. D.C. Motor Speed Control using the ZTX450.
Printer Stepper Motor Drivers. 12V Solenoid Driver/Latch. 8W, 12v Fluorescent Lamp. 6W Inverter for MOS Logic Supplies.
Automotive Security Systems and RF Transistor Products. ZVP4424 and ZVN4424 in Telephone Hook-Switch and Earth Recall Applications. 3V Distress Beacon. High Speed Turn-off Circuit for PNP Pass Transistors.
Low Noise Audio Input Stage. High Voltage Generation for Xenon Tube Applications. Ionising Smoke Detector.  A High Efficiency Constant Current Source for Battery Charging Applications.
High Efficiency Hybrid DC-DC Converter. Isolating High Side Switch for Thermal Printer SMPS Brushless DC Fan Driver. High Efficiency Converter for LCD Bias Contrast Supplies.
Flashgun Converter. Low Cost Ni-Cd and Ni-MH Fast Charge Circuit. Low Dropout Linear Regulators. ZDC833A Dual Variable Capacitance Diode.
Gaming Machine Lamp Driver. The ZR431 Low Reference Voltage Shunt Regulator. Emergency Lighting Fluorescent Lamp. The ZR431 Low Reference Voltage Shunt Regulator in SMPS Control Loops.
Remote Control Motor Driver. ZLDO Series - Quiescent Current vs. Dropout Voltage Trade-Offs Features and Applications of the ZVN4210A. Applications of the ZMR250 SOT23 Miniature Regulator.

TRAC Application Notes.

Frequency Doubler - Getting to the core problem of doubling the frequency of a sinusoidal signal. Audio Phase Indicator the analog equivalent of 'if then else' is achieved. Single Quadrant and Four Quadrant Multiplier Utilising TRAC Full and Half Wave Rectifiers.
True Root Mean Square (RMS) Converter. Fluid Level Detector and Control System - Non mechanical level detector to control fluid level in a container. Bipolar Analog Switch - A mathematical approach and generic solution. Constant Power Delivery - Controller for High Intensity Discharge Lamps.
Phase Detector - Potentially generic design configured as a battery 'state of charge' tester. Device Characteristic Linearization Programmable Analog Filter - Designing an analog filter 'on the fly'. Symmetrical Clipper - Voltage controlled level clamping.
State Variable Filter Voltage Controlled Gain Amplifier Pulse Width Modulator - A totally reconfigurable Switched Mode Power Supply Integrating Oscillator - Utilising the power and versatility of TRAC
Voltage Controlled Oscillator - A small addition to the Integrating Oscillator, results in a voltage controlled oscillator. Zero Crossing Detector - An extremely simple design, illustrating TRAC's power to perform a relatively complex function Pulse Amplitude Modulation (PAM) TRAC Integrate Function & Low Pass Filters
TRAC Differentiate Function & High Pass Filters Phase Detector - Phase difference between two ignals of the same frequency cam be detected. How to use the TRAC support Chip. TRAC Support Chip Using PIC Controller.
FastFour Quadrant Multiplier Utilising TRAC