Electronics Design – AirBorn Electronics

 Design, Design Services  No Responses »
Jun 222008
 
Electronics Design - AirBorn Electronics

They design and produce the electronic controllers inside new products. Electronic development, circuit design, PCB layout, prototyping, programming, these are the parts of Electronics Research and Development to bring a new idea or concept to life. Electronics Design – AirBorn Electronics See the guidelines for writing a project spec and further understanding the creative process. AirBorn Electronics Coal face measurement product software being modified/tested on a mockup – The A-frame shaped unit is under test, the remainder is test equipment Circuit Design Library – AirBorn Electronics

 Posted by delabs at 6:56 pm

Temperature Control in Plastic Injection Molding

 Process Control  No Responses »
Jun 222008
 
Temperature Control in Plastic Injection Molding

This is an Application note i used to give with my controllers – app009.pdf – Ananth Temperature Control in Plastic Injection Molding. Terms in Process Control and Explanation. There are three Controls to be Adjusted to make a Proportional temperature Controller Perform Properly. This method has to be practiced and experience gained from it can be used to get very good and stable Control of the temperature or other process parameters. 1. Set Point. (SP) – This is the Temperature at which you require the Heated area to be. Here we have to remember it is better to control the [Read More ....]

 Posted by delabs at 10:07 am  Tagged with:

Electronics for Measurement Systems

 Process Control  No Responses »
Jun 222008
 

Feedback and Temperature Control System Model, Types of Feedback Control, On-Off Control, Proportional+Derivative Control, Proportional+Integral+Derivative Control, Proportional+Integral Control, Third-Order Systems.. Computer Interfaces for Instrumentation Systems Introduction to Sensors Troubleshooting Op-Amp Circuits

 Posted by delabs at 1:00 am

SPICE Analog Simulation Program TINA TI

 Analog Design, ASIC EDA  No Responses »
Jun 212008
 

SPICE Analog Simulation Program TINA TI TINA is an easy-to-use, but powerful, circuit simulation program based on a SPICE engine. TINA-TI is a fully functional version of TINA, loaded with a library of TI macromodels plus passive and active models. TINA-TI’s new version 7.0 has changes from Version 6.0 in the following areas: TINA-TI provides support for switching power supply devices. TINA-TI has no limit to circuit size. TINA-TI has more SPICE models and example circuits included. User will be notified when an update is available for the tool and TI model library. TINA-TI now supports SMPS simulation capability. Circuits [Read More ....]

 Posted by delabs at 8:46 am

MAX8881and DS2490 Characterization for Cells

 Power Electronics  No Responses »
Jun 212008
 

Rechargeable AA cells are very popular for a large variety of portable applications. The number of brands is also high, and the cell quality can differ considerably. Cell capacity is sometimes different from that specified, and the capacity often deteriorates dramatically after a limited number of discharge cycles. …. See Maxim Application Note – Simple Characterization Circuit for Rechargeable AA Cells Resources Data Sheet for the MAX8881 Data Sheet for the DS2490 Data Sheet for the DS2751 Designer’s Library

 Posted by delabs at 8:15 am

Temperature Controller for Cooling Chamber

 Process Control  No Responses »
Jun 202008
 
Temperature Controller for Cooling Chamber

This is part of an user manual i used to give for cooling controllers – app007.pdf The Logic of cooling in temperature control is inverted, Activating the relay powers a compressor which cools the system. A small modification at the output stage, makes any heating controller into a cooling controller. It can also be done with external relay logic, but make sure on power failure (control power line) the compressor ( 3 ph power) shuts down. In all heating and cooling control, when a broken or disconnected sensor is detected, the controller should turn off all outputs and indicate a [Read More ....]

 Posted by delabs at 10:05 pm

Analog Circuits – delabs Circuits

 Analog Design, Circuits  No Responses »
Jun 092008
 

Analog Circuits – delabs Circuits Analog Circuits added after 2004 Auto ranging 4-1/2 digit digital voltmeter icl7135 of intersil. Precision attenuator with digital control – use with above. Precision amplifier with digital control – use with above. Precision attenuator and amplifier – write up for above two. Fluid or water level sensor using reed relays Fluid or water level sensor using reed relays – circuit example. Analog Circuits Instrumentation Industrial Process Control Circuits Instrumentation Circuits Analog Circuits – 2004 Temperature Measurement Control Circuits in Above Voltage to pulse converter, for impulse counter Current Source mA for calibration AC voltmeter digital [Read More ....]

 Posted by delabs at 8:51 pm

Digital Circuits – delabs

 Circuits, Data Interface  No Responses »
Jun 082008
 

Digital Circuits – delabs These circuits are based on CD40xx Chips and other. You can use 74HCT or any other series that is available. use one family for a particular project. These were used nearly two decades ago. Use it for learning, glue logic or to interface your uC designs to external devices. Do not make only Logic based designs like some below. It would be better to use a uC, CPLD or FPGA if you are building a complex gadget.Basic Digital Circuits Digital Timers, Counters and Clocks Sequential Timer CD40xx Sequential Timer 7217 Six Digit preset counter CD4518 Analog [Read More ....]

 Posted by delabs at 3:15 pm  Tagged with:

SG2525 – SG3525 – PWM SMPS Regulator Chip

 Power Electronics  No Responses »
Jun 072008
 

SG2525 – SG3525 – PWM SMPS Regulator Chip A second generation ic switch mode controller optimized for high frequency. Circuits i built using the STSG3525 using the SGS – Motion Control Application Manual are here – SG3525 usage in SMPS 500W – It was used in Parallel for Electroplating with a central Load sharing control between modules. 100kHz Half Bridge Convertor – SG3525 The SG3525A pulse width modulator control circuit offers improved performance and lower external parts count when implemented for controlling all types of switching power supplies. The on-chip +5.1 V reference is trimmed to +/-1% and the error [Read More ....]

 Posted by delabs at 3:25 pm
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