Electronic Circuit Diagrams
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Analog, Digital, Electrical and Power Electronic Designs. Here you will find some of the product and circuit designs of delabs. Some are Educational, Generic and few others are related to Application Notes. Many are Intellectual Property of delabs contributed to EE Education.
- Digital Multimeter 50200 50220 – Energy Concepts
- Timer and Counter Modules
- Three Opamp Differential Instrumentation
- Multi Output Instrument Power Supply
- Using LEDs with Battery Power
- Drive or Fire Thyristors SCR with Pulses
- Differential amplifier for HV Power Supply
- High Stability Reference Mirror
This manual provides maintenance information for the Energv Concepts Digital Multimeter, Model No. 50200. Included are circuit board information, the various adjustments required, parts lists, schematic diagram, and other maintenance and troubleshooting information.
U1 CD4541 is a Timer with Long Duration Ability. This timer is started by a low pulse from earlier circuit, when the temperature goes above setpoint, a low state is at U2A inputs, this starts the timer.
This is the best Instrumentation OpAmp, Great CMRR, ensure supply has no ripple and keep analog and digital grounds separate.
Every electronic gadget primarily needs a D.C, power supply to energize it. It also forms the basic requirement for any constructional project.
What are LEDs ? How can we use them for Long Battery Life.
Mail from AD
If LED flashes at 5-10 K Hz at even 50% Duty Cycle.
message: Hi, i’m looking at building a power supply 0-35v ,0-100A adjustable cv and cc. I stumbled across your circuit drive-scr-thyristor-with-555 is there a link to describe what phase logic is required to complete the basic design ?
This is part of a precision High Voltage but Low current Power Supply for Testing leakage currents in passive devices.
LM399 is a Precision Reference chip. From this a dual polarity mirrored reference is derived using OP07 op-amps. This assembly is mounted in a miniature oven to ensure temperature stability.