Thursday, January 20, 2011

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12V from USB port

Posted: 20 Jan 2011 06:16 AM PST

Description. Using this circuit we can convert 5V DC from the computer USB port to 12V DC and a circuit like this will find a lot of application in USB powered systems. The heart of this circuit is IC LT1618 which is a constant current, constant voltage boost converter. The IC has a wide input [...]

15W Class B audio amplifier

Posted: 20 Jan 2011 02:01 AM PST

Description. The circuit shown here is of a simple Class-B audio amplifier based on opamp TL082, transistors TIP141 and TIP142. LM833 is a dual opamp with high slew rate and low distortion particularly designed for audio applications. This amplifier circuit can deliver 15 watt audio output into an 8 ohm speaker at +12/-12V DC dual [...]

Active crossover circuit

Posted: 19 Jan 2011 10:37 PM PST

Description Crossover circuits are of two types, active and passive. Passive crossover circuit uses passive components only and they are very simple, but they waste a considerable amount of energy and also induce distortion. Active crossovers does not have the above said draw backs and they are a better option for HiFi audio systems. Active [...]

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www.circuitstoday.com

Thursday, January 20, 2011

www.circuitstoday.com


12V from USB port

Posted: 20 Jan 2011 06:16 AM PST

Description. Using this circuit we can convert 5V DC from the computer USB port to 12V DC and a circuit like this will find a lot of application in USB powered systems. The heart of this circuit is IC LT1618 which is a constant current, constant voltage boost converter. The IC has a wide input [...]

15W Class B audio amplifier

Posted: 20 Jan 2011 02:01 AM PST

Description. The circuit shown here is of a simple Class-B audio amplifier based on opamp TL082, transistors TIP141 and TIP142. LM833 is a dual opamp with high slew rate and low distortion particularly designed for audio applications. This amplifier circuit can deliver 15 watt audio output into an 8 ohm speaker at +12/-12V DC dual [...]

Active crossover circuit

Posted: 19 Jan 2011 10:37 PM PST

Description Crossover circuits are of two types, active and passive. Passive crossover circuit uses passive components only and they are very simple, but they waste a considerable amount of energy and also induce distortion. Active crossovers does not have the above said draw backs and they are a better option for HiFi audio systems. Active [...]

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Post a Comment

 

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