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LASER Power Supply

Published:2012/12/11 0:40:00 Author:muriel | Keyword: LASER , Power Supply

LASER Power Supply
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High Voltage High Current Power Supply

Published:2012/12/11 0:40:00 Author:muriel | Keyword: High Voltage , High Current, Power Supply

High Voltage High Current Power Supply
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High Current Power Supply

Published:2012/12/11 0:39:00 Author:muriel | Keyword: High Current, Power Supply

High Current Power Supply
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Fixed Voltage Power Supply

Published:2012/12/11 0:39:00 Author:muriel | Keyword: Fixed Voltage, Power Supply

Fixed Voltage Power Supply
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Dual Polarity Power Supply

Published:2012/12/11 0:39:00 Author:muriel | Keyword: Dual Polarity, Power Supply

Dual Polarity Power Supply
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Car Battery Charger

Published:2012/12/11 0:38:00 Author:muriel | Keyword: Car , Battery Charger

Car Battery Charger
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Automatic 12V Lead Acid Battery Charger

Published:2012/12/11 0:37:00 Author:muriel | Keyword: Automatic , 12V , Lead Acid Battery, Charger

Automatic 12V Lead Acid Battery Charger
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6V to 12V Converter

Published:2012/12/11 0:37:00 Author:muriel | Keyword: 6V to 12V, Converter

6V to 12V Converter
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12V to 120V Inverter

Published:2012/12/11 0:36:00 Author:muriel | Keyword: 12V to 120V, Inverter

12V to 120V Inverter
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12V To 24V DC-DC Converter Circuit

Published:2012/12/11 0:35:00 Author:muriel | Keyword: 12V To 24V, DC-DC , Converter Circuit

12V To 24V DC-DC Converter Circuit
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Video Activated Relay

Published:2012/12/11 0:32:00 Author:muriel | Keyword: Video Activated, Relay

Video Activated Relay
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Time Delay Relay II

Published:2012/12/11 0:31:00 Author:muriel | Keyword: Time Delay , Relay

Time Delay Relay II
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Time Delay Relay

Published:2012/12/11 0:30:00 Author:muriel | Keyword: Time Delay, Relay

Time Delay Relay
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40W Fluorescent Lamp Inverter

Published:2012/12/10 0:50:00 Author:muriel | Keyword: 40W , Fluorescent Lamp, Inverter

40W Fluorescent Lamp Inverter
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Two kinds of output switching power supply circuit diagram

Published:2012/12/7 1:24:00 Author:Ecco | Keyword: output , switching power supply

Two kinds of output switching power supply circuit diagram
As shown in figure, it is a high-power switching power supply with L4970A. L4970A is a high-power single-chip switch integrated voltage regulator, the chip uses SIP-15 package, which is characterized by: ( 1 ) Input voltage must be > 11V, and the value is typically between 15 ~ 40V; ( 2 ) Output voltage: Fixed output is 5.1V, and it can also be set through an external circuit adjustable output with the range of 5.1 ~~ 40V; ( 3 ) the maximum output current is 10A; ( 4 ) operating frequency is 200kHz; ( 5 ) internal undervoltage detection, brownout reset power stage soft start circuit. (View)

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Step-up switching regulator power supply circuit

Published:2012/12/7 1:41:00 Author:Ecco | Keyword: Step-up , switching regulator , power supply

Step-up switching regulator power supply circuit
In the circuit, It uses transistor BG1 as a switching adjust tube; operational amplifier IC1 constitutes the compare amplifier; 555 time-base circuit is connected as astable multivibrator. Oscillator produces a sawtooth voltage on C1 (Vmin = 1/3Vz, Vmax = 2/3Vz, the frequency is determined by W1 and C1 ), then it is supplied to the noninverting input of the comparator IC1, sampling voltage is supplied to the inverting input terminal of comparator. The duty cycle of the rectangular waveform output by IC1 is decided by the sampling voltage, when the output voltage is a stable value, the sampled voltage is between 1/3Vz and 2/3Vz. (View)