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Archives for March, 2011

quad system circuit

quad system circuit using LM324, Lm324A, LM224, LM2902, LM2902V, NCV2902 Single Supply Quad Operational Amplifiers using LM324, Lm324A, LM224, LM2902, LM2902V, NCV2902 The LM324 series are low-cost, quad operational amplifiers with true differential inputs. They have several distinct advanteges over standard operational amplifier types in single supply applications. The quad amplifier can operate at supply […]

Power Supplies Switching

Switching power supply circuit Power Supplies Switching using LM5020

lm555 lm555c timer

lm555 lm555c timer Circuits

2w Audio power amplifier schematics

2w Audio power amplifier schematics using AN7120 AN7120 2w audio power amplifier schematics specs features and application. Audio amplifier ICs for portable radio and TV, new circuit audio power amplifier

How The History of Logic PLC ?

When production requirements changed so did the control system. This becomes very expensive when the change is frequent. Since relays are mechanical devices they also have a limited lifetime which required strict adhesion to maintenance schedules. Troubleshooting was also quite tedious when so many relays are involved. Now picture a machine control panel that included […]

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