electrolytic
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Lights and Display Board Circuits
FL Twilight Switch Schematic Circuit Diagram
This light dimmer has been specially designed for use with fluorescent lamps (FLs). The circuit contains only a few components…
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Amplifier Circuit Diagrams
Simple Microphone Preamplifier Schematic Circuit Diagram
The technical demands on microphones used with radio equipment are not stringent in terms of sound quality: a frequency response…
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Calculator & Measurement
Negative-Output Switching Regulator Schematic Circuit Diagram
There are only a limited number of switching regulators designed to generate negative output voltages. In many cases, it’s thus…
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Clock & Timer Circuit Diagrams
UV Torch Light Schematic Circuit Diagram
UV (ultra-violet) LEDs can produce eyecatching effects when their light is allowed to interfere with certain colours, particularly with reflected…
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LCD-LED Display
White LED Lamp Schematic Circuit Diagram
Did it ever occur to you that an array of white LEDs can be used as a small lamp for…
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Motor Circuit Diagrams
Fan Monitor Schematic Circuit Diagram
The MAX6684 from Maxim (http://pdfserv.maxim-ic.com/ arpdf/MAX6684.pdf) is a device for monitoring fans. Available in an 8-pin small outline SMD package…
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Amplifier Circuit Diagrams
Audio Switchbox Schematic Circuit Diagram
This circuit is intended as an extension for (pre-) amplifiers, to increase the number of inputs. Ever since the introduction…
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Clock & Timer Circuit Diagrams
PWM Step Up Converter Schematic Circuit Diagram
A step-up or boost converter circuit converts a low voltage into a higher value output voltage. The circuit consists of…
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Battery Discharger
Smoke Alarm Power Supply Schematic Circuit Diagram
Smoke alarms are extremely useful devices, but they suffer from one significant disadvantage, which is that they’re battery powered. This…
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LCD-LED Display
LED Multi-Flasher Schematic Circuit Diagram
The first circuit in Figure 1 shows a particularly simple LED flasher for AC power operation with six channels. All…
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