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Index 281

Monolithic switching power supply circuit diagram

Published:2011/3/30 21:18:00 Author:Ecco | Keyword: Monolithic switching, power supply

Monolithic switching power supply circuit diagram is as below: (View)

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The regulated power supply circuit diagram with constant current and parallel connection

Published:2011/3/30 20:43:00 Author:Ecco | Keyword: constant current, parallel connection, regulated power supply

The regulated power supply circuit diagram with constant current and parallel connection
The electric circuit is a type of constant current paralleling supply, it has the features of high speed, low noise, low internal resistance. Adopting the LM317 as a constant current source, it can provide constant current with 560 mA to load. The field-effect tube 2SR3D and luminotron tube can provide low noisy reference voltage. The LM741(Operational Amplifier) is an error amplifier to compare and amplify the reference voltage and sampling voltage. Two sets of 3DD15 are been used to adjust output voltage to hit the purpose of stabilizing the output voltage. (View)

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Transmitter circuit diagram

Published:2011/3/29 20:51:00 Author:Rebekka | Keyword: Transmitter

Transmitter circuit diagram
Here is the schematic diagram of the transmitter circuit: (View)

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500W push-pull DCDC converter circuit diagram

Published:2011/3/29 20:53:00 Author:Rebekka | Keyword: 500W push-pull , DCDC converter

Here is the schematic diagram of the 500W push-pull DCDC converter circuit: (View)

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Cell phone battery constant-current charger circuit diagram

Published:2011/3/29 20:05:00 Author:Ecco | Keyword: Cell phone battery , constant-current, charger

Cell phone battery constant-current charger circuit diagram is as below: (View)

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TCL Trump RPT4302 rear-projection TV supply circuit diagram

Published:2011/3/24 4:08:00 Author:Ecco | Keyword: rear-projection TV

TCL Trump RPT4302 rear-projection TV supply circuit diagram is as below: (View)

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Triode constant-current supply circuit diagram

Published:2011/3/23 1:24:00 Author:Ecco | Keyword: Triode, constant-current supply

Triode constant-current supply circuit diagram is as below: (View)

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3000VA UPS Power Supply circuit

Published:2011/3/21 4:01:00 Author:Rebrecca | Keyword: UPS, Power Supply

3000VA UPS Power Supply circuit
Here is the schematic diagram of the circuit: (View)

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LM317 Integration fixed voltage power supply circuit diagram

Published:2011/3/21 21:51:00 Author:Rebekka | Keyword: Integration fixed voltage power supply

LM317 Integration fixed voltage power supply circuit diagram
LM317 is a common adjustable Integrated voltage regulator. The max output current is 2.2A, output votage 1.25～37V. The connection is shown as below: Between 1 and 2 feet is 1.25V voltage reference. For making sure the output performance of the regulator, R1 should be less than 240 Ohm. Changing R2 can adjust the voltage of regulator. D1 and D2 are usd for protecting LM317. (View)