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Power supply and battery circuit

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LM2575 Switching Regulator

LM2575 Switching Regulator

The purpose of a voltage regulator circuit is to take a variable input voltage and produce a steady output voltage. Two common regulator types are linear and switch-mode. Linear regulators are simple, but waste a lot of power in the process of regulating the voltage. Linear regulators can be thought of as self adjusting series resistors.

http://www.solorb.com/elect/solarcirc/buckreg1/index.html

40A Power Supply Unit

40A Power Supply Unit

This Project describes a Protected 13.2V 40A Power Supply Unit which, provided the heat sinking and cooling fan are suitable, is capable of running at full power at 100 percent duty cycle.

http://www.qsl.net/vu2upx/Projects/40apsu.htm

General Purpose Power Supply by L146 or IC 723

General Purpose Power Supply by L146 or IC 723

This power supply is designed for general purpose use. Advantages of the circuit are first the voltage can be adjusted from 0V to greater and second it does not require a double sided secondary winding transformer.

http://www.circuit-projects.com/power-supply-circuits/general-purpose-power-supply-by-l146-or-ic-723.html

Self switching Power Supply

Self switching Power Supply

One of the main features of the regulated power supply circuit being presented is that though fixed-voltage regulator LM7805 is used in the circuit, its output voltage is variable.

http://www.electronic-circuits-diagrams.com/psimages/powersuppliesckt2.shtml

9v Battery Voltage Monitor

9v Battery Voltage Monitor

Nine voltage batteries are used in a wide variety of electronic devices. But, you often do not know when it is time to change the battery until the device stops operating.

http://www.discovercircuits.com/H-Corner/9v-batmon.htm

Regulated Power Supply Circuits

Regulated Power Supply Circuits

There are power supplies with greater current capacities on the same Digi-Key catalog page as those shown above. These should be avoided as they have a negative terminal that is connected to earth through the grounded, three prong plug. This could cause isolation problems between various parts of a layout and could cause short circuits or ground loops.

http://home.cogeco.ca/~rpaisley4/PSupply.html

Capacitor Discharge Power Supplies

Capacitor Discharge Power Supplies

This page presents various capacitor discharge power supply circuits for use with twin coil switch machine motors. Also shown are some optional wiring methods that can be used to enhance the availability and control of these supplies.

http://home.cogeco.ca/~rpaisley4/CDPSU.html

AC Line Current Detector

AC Line Current Detector

detect AC line currents of about 250 mA or more without making any electrical connections to the line

http://ourworld.compuserve.com/homepages/Bill_Bowden/page8.htm#aclatch.gif

Adjustable Power Supply

Adjustable Power Supply

well filtered variable 1.2-30 volts at 5 amps using LM338K

http://www.aaroncake.net/circuits/supply.htm

Adjustable power supply using LM317

Adjustable power supply using LM317

voltage regulator for 1.2V to 35V output voltages and up to 1A load

http://www.epanorama.net/documents/components/lm317.html


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