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Solar Charger - The previous version of this device used pulse
width modulation (pwm) to control the power from the five solar panels to
charge the battery bank. Under full sun conditions the MOSFETS got a
bit warm and the whole unit radiated a lot of RFI. This design uses a
set of relays, one for each panel. If the controller decides the
battery voltage is too low, it engages another relay;
.(electronic schematic
added 08/08)) [Luhan Monat - Mesa Arizona] |
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Solar Energy Meter - Turn 8051SBC to be a dedicated instrument for
measuring AC energy when sunshine.
.(electronic schematic added 06/09)
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Solar Recorder T - The PIC Solar recorder for daily insolation
measurement.
.(Circuit design added 06/09) |
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Solar Server - Build the solar station for insolation measurement
with Ubuntu server 7.10 and a 24-bit Delta-sigma converter.
.(design
added 06/09) |
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Solder RefLow Recommendation - Microchip Application Note
Published 6-Oct-04 (app note added 2/06) |
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Solving Second Sourcing Issues with the 24LC00 Devicein a SOT-23 Package
- Microchip Application Note Published 30-Jan-98 (app note added
2/06) |
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Solving Sensor Offset Problems TC7106 - Microchip Application Note Published
12-Nov-02 (app note added 2/06) |
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Speech Recognition using HM2007 - (electronic circuit added 7/03)
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[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
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Speech Synthesizer Development System - This system was designed to
facilitate the development of a low cost speech module using a PIC and some EEPROM
memory. This has already been done (see PICTalker) using 64k of memory. So far,
this device is working with only 11k of memory by using techniques discussed
below....[Luhan Monat - Mesa Arizona] |
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Speed C functions for C16x microControllers - 08/03/00 EDN-Design
Ideas....The Infineon C16x Series of ΅Cs use an internal 16-bit-register architecture.
The architecture can also process byte-wide functions. The ΅C uses byte moves to
implement library functions such as memset(]or memcopy(]. This process makes the
library code....(DI #2569]....EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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Speedy logic translator uses little power - 12/31/69 EDN-Design Ideas....In
handheld equipment, component count and power consumption are critical considerations.
This Design Idea uses only a few transistors to configure a high-speed output stage of
an RS-232C link while draining few precious milliamperes from the batteries. In
general,....[File contains multiple circuits. Scroll to find this
one.]....[Design Idea by Davis Magliocco, CDPI, Scientrier, France] |
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SPI Flash MicroController Programmer V3.7, - new hardware and software for
programming 89Sxx and AVR chips. Designed by Mohammad Asim Khan.
.(electronic
schematic added 06/09) |
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SPI Interface Big 7-Seg LED - Big display for general purpose usage, the
interfacing is SPI serial interface, requires only 3-wires. Multiple digit can easily
be made. DXF files single side PCB.
.(Circuit design added 06/09) |
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Spydar2 - This is a circuit monitoring device. It runs for over 10 days and
can log up to 32k events both digital and analog. Samples are logged either on a
timing basis (.01 to 2.5 seconds), or on a triggered basis. Four inputs are provided,
up to three of which can be analog....[Luhan Monat - Mesa Arizona] |
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Squeeze extra outputs from a pin-limited microcontroller - 4-Aug-05 Issue of
EDN Shift register expands small-footprint microcontroller I/O....[Design Idea
by Abel Raynus, Armatron International Inc, Malden, MA; Edited by Brad Thompson and
Fran Granville] |
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State & Timing Modules for Agilent Technologies Logic Analysis Systems -
Agilent Application Note (added 6/06) |
|
Statistical process control - Application Note MiniCircuits.com (app
note added 04/05/06) |
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Stepper Control -
.(design added 07/08/09) |
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STK200 Programmer -
.(design added 06/09) |
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STK200/STK300 ISP Header - Pin diagram of STK200/STK300. Note for MEGA103
ISP signal.
.(electronic schematic added 06/09) |
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Student DC Supply - Build a simple DC supply for microcontroller LAB using
parts from broken radio. The Student DC Supply provides +5VDC regulated, +10VDC
unregulated and 7.5VAC.
.(Circuit design added 06/09) |
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Substituting the RC5051 for the RC5050/ AB-10 - Fairchild Application Notes
/ (app note added 6/06) |
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Super Remote - Using a PIC12F683 and a few transistors, it is theoretically
possible to boost the power to a standard 433 MHz remote transmitter module. (Note
hypothetical image at right).
.(electronic schematic added 08/08) [Luhan Monat - Mesa
Arizona] |
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Superprobe - The Superprobe project was designed to see how much could be
done with a PIC chip and just a few parts. The image at the right shows the
capacitance measuring mode
. [Luhan Monat - Mesa Arizona] |
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Suppressing MOSFET Gate Ringing in Converters: Selection of a Gate Resistor/ AB-9
- Fairchild Application Notes / (app note added 6/06) |
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Suppression of Prescaler Self-Oscillation 1/14/94 - Application Note
California Eastern Laboratories Doc #902....[App Note] |
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Surface Mount Environmental Specifications - Application Note
MiniCircuits.com (app note added 04/05/06) |
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Surface Mounting for PowerSIP Package Apex-AN36 - Apex App Note.... |
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Switch conserves microController's I/O pin - 09/15/94 EDN-Design
Ideas....EDN is migrating links. This link is not verified. Search the "title" +
"EDN" for new link. |
|
Switch Mode Battery Eliminator Based on a PIC16C72a - Microchip Application
Note Published 25-Mar-99 (app note added 2/06) |
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Switcher IC hikes Battery Charger's Efficiency - 06/23/94 EDN-Design
Ideas....The adjustable switching-regulator LM2575T-ADJ, IC1, in Fig 1 replaces a
power-wasting pnp transistor in the data-book design for the NiCd battery charger IC2,
a MAX713. (Its sister device, the MAX712, handles NiMH cells.]IC2 "fast-charges" cells
by monitoring the cell's voltage and charging current until they....EDN is migrating
links. This link is not verified. Search the "title" + "EDN" for new link.
|
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Synchronous Buck MOSFET loss calculations with Excel model/ AN-6005 -
Fairchild Application Notes / (app note added 6/06) |
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System Design Considerations for Implementing a ROM MicroController -
Microchip Application Note Published 15-Nov-99 (app note added 2/06)
|
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System Design Practice TC4426/7/8, TC4426A/7A/8A - Microchip Application
Note Published 12-Nov-02 (app note added 2/06) |
|
System Supervisors in ICSP Architectures - Microchip Application Note
Published 11-Feb-02 (app note added 2/06) |
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