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Smart Battery Charger - This unit was constructed in the shell of a Radio
Shack battery charger. The original unit charged only one type of battery at a time
and only in pairs. This unit allows for mix and match for AAA, AA, C, and D
cells. Each battery is individually monitored and charged. An LED for each one flashes
to show the current charging condition as follows....[list:68e9b49a6d]Dim with bright
flash: No battery detected Solid on: Battery charging Blinking on: Battery
charged[/list:u:68e9b49a6d] When a battery is first inserted, a small charge is pulsed
to it. In between the pulses, the battery is... [Copyright 2006 Luhan Monat] |
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Smart Sensor can Node using the MCP2510 & PIC16F876 - Microchip Application
Note Published 16-Aug-00 (app note added 06/06/06) |
Smartcard PC Emulator (Markus Kuhn) - This smartcard adapter follow exactly
the specification ISO 7816. Also, the protocol is the "asynchronous half duplex T=0
protocol" with "active low reset" and "inverse convention" as defined in this
standard.
The following description may be used in order to connect computers to ISO 7816
compatible chip....(electronic design added 6/07) [Site is under construction right
now] |
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SMBus Accelerator Improves Data Integrity – Design Note 193 - DN193
Design Notes (Linear Technology) (app note added 1/06) |
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Soft Limiter for Oscillator Circuits Uses Emitter Degenerated Differential Pair -
10/12/06 EDN-Design Ideas Most oscillator circuits include a nonlinear amplitude
control that sustains oscillations at a desired amplitude with minimum output
distortion. One approach uses the output sinusoid's amplitude to control a circuit
element's resistance, such as that of a JFET operating in its triode-characteristics
region. Another control method uses a limiter circuit that allows
oscillations....[Design Idea added 06/07] EDN is migrating links. This link is not
verified. Google the "title" EDN for new link. |
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Software Code EE-162 - EE-162 SoftwareCode-Analog Device Application Notes
(app note added 6/06) |
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Software Code EE-236 - EE-236 Analog Devices Application Notes (app
note added 2/06) |
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Software Code EE-246 - EE-246 Analog Devices Application Notes (app
note added 2/06) |
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Software Code EE-247 - EE-247 Analog Devices Application Notes (app
note added 2/06) |
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Software Code EE-248 - EE-248 Analog Devices Application Notes (app
note added 2/06) |
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Software Engineer's Guide to the System Interface of the DP83266 Macsi Device -
National Semiconductor Application Note (app note added 2/06) |
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Software I2C Routine for the COP8 - National Semiconductor Application Note
(app note added 6/06) |
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Software Implementation of Asynchronous Serial I/O - Microchip Application
Note Published 26-Aug-97 (app note added 06/06/06) |
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Software Implementation of I˛C Bus Master - Microchip Application Note
Published 26-Aug-97 (app note added 06/06/06) |
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Software Implements Digital Potentiometer - 06/08/95 EDN-Design Ideas
In some applications (for example, dynamic biasing of laser diodes), the use of
digital potentiometers, or trimDACs, has limitations because of resolution, accuracy,
or interface difficulties. Using the simple (but maybe not so obvious) vernier scheme
in.... [Design Idea by Gray Creager, Xicor Inc, Milpitas, CA] |
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Software makes full use of 8051's interrupt system - 6-Dec-01 Issue of EDN
The program in Listing 1 uses a pseudo-RETI instruction to provide a
five-priority-level interrupt system for the 8051P microcontroller. The
interrupt-priority order, from high to low, is INT0 IT0 INT1 IT1 INTP. Before the
pseudo-RETI instruction arrives in the IT0 or IT1 interrupt-service routine, the
address of the first instruction, which is after the pseudo-RETI instruction, goes
ba.... [Design Idea by Deng Yong, Shanghai Jiaotong University, China] |
