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Rezensionen (5)

15. Jun 2017
Good pole mostly made of steel
Used daily with little sign of wear. Easily adjustable. Alarm works when someone on the other side of the door touches the knob.
02. Sep 2007
Ic Voltage Regulator Sourcebook, With Experiments by Va
I had a Audio Authority 12 volt, 40 amp power supply to fix and needed a little help understanding voltage regulation.
I found this book on Ebay at just the right time. The book even has a chapter on the 723 voltage regulator chip like I found in my power supply.
A look at the Table of Contents will reveal this book is not just for beginners but will also provide a well rounded source of power supply knowledge for advanced practioners of technological arts.
Table of Contents
Chapter 1 - Transformers, Rectifiers, and Filters
Topics:
Transformers
Rectifiers
Filters
Inductor-capacitor and resistor-capacitor sections
Calculating component values
Chapter 2 - The Basic Voltage Regulator
Topics:
The Voltage Reference
Constant Current Sources
The Error Amplifier
The Series-Pass Transistor
The Internal Voltage Regulator Protection Circuitry
Chapter 3 - Types of Linear Voltage Regulators
Topics:
Fixed Voltage Regulators
Adjustable (Three and Four)-Terminal Regulators
Dual Polarity and Tracking Supplies
Fixed and Adjustable Dual-Tracking Regulators
The LM125/126 Dual-Tracking Regulators
Chapter 4 - Switching Power Supplies
Topics:
Switching Regulator Concepts
Dc-to-DC Converters
Other Types of Regulators used in Switchers
NE5560, SG1524, and uA78S40
High Frequency Switching Mode Designs
Chapter 5 - The 723 Voltage Regulator
Topics:
A Basic Adjustable Power-Supply Design
Series Pass Transistors
Designing a Shunt Regulator
Low-Power 723 Designs
723 Current Regulator Designs
Foldback vs Regular Current Limiting
Remote Regulator Shutdown
Monitoring Voltage Levels
Chapter 6 - Monitoring the Power Supply's Health
Topic:
Detecting Voltage Levels
Continuously Monitoring Visual Indicators
Power Supply Monitoring Subsystem ICs
Chapter 7 - Power Conserving Techniques
Topics:
Display Blanking and Related Optoelectronic Techniques
LM3909 Power Miser IC
Minimizing Memory Power Drain
Microprocessor Shutdown
The Power Stingy CMOS Family
Minimizing Voltage Regulator Dropout Voltage
On Demand Power Supply
Generating Multiple and Negative Voltage from a Single Supply
Chapter 8 - Thermal Considerations and Reliability Enhancement
Topics:
Electrical-Thermal Analogies
Heatsinks
Other Heat Venting Means
Temperature Indicators
Overheating Protection Devices

24. Jul 2018
Easy to install round rocker switches
Great switch for panel builders or modifying power strips like I do. Just drill a 20mm hole and the switch snaps in place. I tested all the switches I bought to make sure they would illuminate and they did. Red, Yellow, Green and Blue colors to choose from too. I like the electrical specs too for a switch this size. I will be buying more for my next project.