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PC Board Layout Checklist: DC-DC
Converters/ AB-11 - Fairchild App Note - . . .
PC Power Applications/ AB-52 - Fairchild App Note - . . .
PC Power Applications/ AB-53 - Fairchild App Note - . . .
PC100 Registered SDRAM Module Design - App Note - # 009. . . [Pericom Semiconductor]
PC-Based Configurable Filter Uses No Digital Potentiometers - 01/23/03 EDN Design Idea Fleapower flasher draws less than 50 µA - Modern instrumentation
requires digital control signals. These signals come from a central microprocessor or, in modern context, the
popular parallel or serial PC ports. In recent times, di. . . [by Saurav Gupta and Tejinder Singh, New Delhi,
India]
PC-Based Development Programmer for the PIC16C84 - Application Note Published 26-Aug-97. . . [Microchip]
PCI Timing Check using the
Agilent E2920 PCI Series Exerciser/Analyzer -
Application Note. . . [Agilent]
PC-PIC Serial - PIC Project The standard rs-232 (com port) interface specifies +/- 12 volt signals. It is
possible to work quite well with +/- 5 volts. This circuit works by 'stealing' the negative voltage from the
COM port and using it to communicate back. . . [Luhan Monat - Mesa Arizona]
Pedometer - Pedometer has a range of 9. 950 meters with2-digits. Slip it in pants pocket for walking and
jogging. . . [Flavio Dellepiane's web site]
Perform the XOR/XNOR Function With A Diode Bridge and A Transistor - 05/24/12 EDN Design Idea Remember DTL? These discrete DTL-like circuits let you implement
the XOR and XNOR operations with a minimum of components. When designing logic for higher-than-usual supply
voltages, such as 24V, you can use a voltage regulator with a standard logic family and interface it through
level shifters. Alternatively, if the logic is not too complex and the speed is not extensively high, you can
build gates from discrete components and operate them directly from the available voltage. Discrete-component
AND, OR, and NOT functions are relatively straightforward, but XOR and XNOR functions usually require
combining several of the basic AND, OR, and NOT functions. . . [by Raju Baddi, Tata Institute of Fundamental
Research, Pune, Indi]
Pericom FCT Logic for Hot-Plug
Applications - Application Note # 003. . . [Pericom
Semiconductor]
Phase Modulated PWM Topology with the
ML4818/AN-42026 - Fairchild App Note - . . .
Phone Interceptor 1 - PIC Project This device connects between the phone line, an answering machine, and your
phones. When a phone call comes in, the answering machine picks up the call and informs the caller to enter
the access code to ring the phone or to wait for the beep and leave a message. If the correct code is
entered, the answering machine is immediately disconnected while the device generates phone ringing tones on
an external speaker. Picking up any phone causes the device to return to its initial state. . . [Luhan Monat
- Mesa Arizona]
Phone Interceptor 2 - PIC Project This unit is an upgrade of the previous phone call interceptor. Instead of
using an answering machine to provide the outgoing message and recording functions, it uses the ISD4004 (from
Windbond Electronics). The ISD4004 records up to 8 minutes of audio. I use the first several seconds for
outgoing message prompts. The remaining time is used to record up to 30 messages, depending on message
length. . . [Luhan Monat - Mesa Arizona]
Phone Line Box - This is an educational site of PIC Projects in various stages of development along with
pictures, source files, object code files, schematics, and board layouts. You are welcome to use what you
like at your own risk. . . [Luhan Monat - Mesa Arizona]
Phone Messager - This is an educational site of PIC Projects in various stages of development along with
pictures, source files, object code files, schematics, and board layouts. You are welcome to use what you
like at your own risk. . . [Luhan Monat - Mesa Arizona]
Phone Screener with Voice - PIC Project This unit is an upgrade of the previous phone call interceptor. Instead of
using an answering machine to provide the outgoing message and recording functions, it uses the ISD4004 (from
Windbond Electronics). The ISD4004 records up to 8 minutes of audio. I use the first several seconds for
outgoing message prompts. The remaining time is used to record up to 30 messages, depending on message
length. . . [Luhan Monat - Mesa Arizona]
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