Resistors

The resistor's resistance limits the flow of electrons through a circuit.

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Resistor units

The electrical resistance of a resistor is measured in ohms.

Schematic symbol

All resistors have two terminals, one connection on each end of the resistor. When modeled on a schematic, a resistor will show up as one of these two symbols

Resistor color code chart

The chart below shows how to determine the resistance and tolerance for resistors. The table can also be used to specify the color of the bands when the values are known. An automatic resistor calculator can be used to quickly find the resistor values.

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Voltage booster from 1.5 to 12 volt

Lighting up 12 volt LED strip with 1.5 volt battery This is a simple voltage booster circuit. It can increase the voltage of a power source by changing the constant low voltage signal into a series of rapid pulses at a higher voltage. You most commonly see this kind of circuit used to power LEDs with a “dead” battery, but there are many more potential applications for a circuit like this. Any NPN transistor like BC547 1K Resistor 12 Volt LED strip Enamel coated Copper wire preferable SW32 Ferite Ring You can source Ferite ring from dead CFL Bulb Please check out below demo Background: How Does a it Work? This circuit is a self-oscillating voltage booster. It takes a steady low voltage signal and converts it into a series of high frequency pulses at a higher voltage. Here is how a basic it works, step by step: 1. Initially the transistor is off. 2. A small amount of electricity goes through the resistor and the first coil to the

Coupling

AC Coupling : AC coupling consists of using a capacitor to filter out the DC signal component from a signal with both AC and DC components. The capacitor must be in series with the signal. AC coupling is useful because the DC component of a signal acts as a voltage offset, and removing it from the signal can increase the resolution of signal measurements. AC coupling is also known as capacitive coupling. DC Coupling: DC coupling allows both AC and DC signals to pass through a connection. When using DC coupling, no additional capacitor is added to filter the signal. The DC-coupled configuration is usually best if the signal source has only small amounts of offset voltage, less than ±100 mV, or if the DC content of the acquired signal is important. Download Excel Simulator

MOSFET

IRF3711Z Type Designator: IRF3711Z Type of Transistor: MOSFET Type of Control Channel: N -Channel Maximum Power Dissipation (Pd): 79 W Maximum Drain-Source Voltage |Vds|: 20 V Maximum Gate-Source Voltage |Vgs|: 20 V Maximum Gate-Threshold Voltage |Vgs(th)|: 2.45 V Maximum Drain Current |Id|: 92 A Maximum Junction Temperature (Tj): 175 °C Maximum Drain-Source On-State Resistance (Rds): 0.006 Ohm Package: TO220AB Search Reference: https://alltransistors.com/mosfet/crsearch.php

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