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5V、5A Switching Regulators Power Circuit Diagram

Published:2011/3/21 1:44:00 Author:Rebrecca | Keyword: Switching Regulators

5V、5A Switching Regulators Power Circuit Diagram is shown as below. (View)

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LCD TV power supply circuit diagram

Published:2011/3/27 20:34:00 Author:Rebekka | Keyword: LCD TV

LCD TV power supply circuit diagram is shown as below. (View)

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±15V Tracking Regulator Power Supply Circuit Diagram Six

Published:2011/3/21 1:44:00 Author:Rebrecca | Keyword: Tracking Regulator

±15V Tracking Regulator Power Supply Circuit Diagram Six is shown as below. (View)

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Protect circuit diagram of filter capacitor in electronic rectifier

Published:2011/3/28 3:51:00 Author:Nicole | Keyword: filter capacitor, electronic rectifier

Protect circuit diagram of filter capacitor in electronic rectifier
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Switching tube drive circuit diagram composed of EXB 841

Published:2011/3/28 3:37:00 Author:Nicole | Keyword: switching tube drive

Switching tube drive circuit diagram composed of EXB 841
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Shenyang sanyo AC double speed elevator main circuit

Published:2011/3/25 3:49:00 Author:Jessie | Keyword: AC, double speed elevator

Shenyang sanyo AC double speed elevator main circuit
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Single-ended flyback converter switching power supply circuit diagram

Published:2011/3/24 0:40:00 Author:Nicole | Keyword: converter, switching power supply

Single-ended flyback power converter switching power supply is not composed only by a transistor, the single-ended converter switching power supply also can be made of two transistors. The fundamental difference between Single-ended flyback switching power supply and the push-pull, full bridge, half-double-ended converter switching power supply is that the core of high-frequency transformer only work on one side of its hysteresis loop. The schematic of atypical single-ended flyback converter switching power supply as shown. The so-called single-ended, that means the core of converting circuit only work on one side of its hysteresis loop. The so-called flyback, that means when the transistor turns on, the energy stored in the primary induction coil, when the transistor is off, the energy stored in the primary coil will release to the load through the secondary coil. When the switching tube VT1 was motivated to turn on, the input voltage Ui will be applied to the primary winding N1 of high-frequency transformer T1. Due to the secondary rectifier diodes VD of transformer T1 was reversed, so there is no current flow on the secondary winding N2. When VT1 end, the voltage of winding N2 was polarity reversed, VD was positively skewed, the energy during VTl turns on stored in T1 will released through VD load. (View)

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15V／3.5A 52W switching power supply circuit diagram composed of MC33374T／TV

Published:2011/3/23 22:32:00 Author:Nicole | Keyword: 52W switching power supply

15V／3.5A 52W switching power supply circuit diagram composed of MC33374T／TV
15V/3.5A 52W switching power supply circuit composed of MC33374T/TV as shown. The allowed range of AC input voltage is 92 ~ 276V. Rectifier bridge VD1 ~ VD4 use four 1N5406 3A/600V silicon rectifier tubes. Primary protection circuit is composed of RC absorber circuit (R2, C2) and the clamp circuit (VDz, VD5), it can effectively suppress the peak voltage due to the leakage of high-frequency transformer, to protect the internal power switch of MC33374 from damaged. VDz adopts P6KE200A transient voltage to suppress the diode(TVS), then the reverse breakdown voltage UB = 200V. VD5 uses MURl60 super fast recovery diode (SRD). Note, the serial number of RC R1, C3 in the figure is vacant, according to the need, it can turn the series circuit of R2, C2 into the R1 (20kΩ, 2W) and C3 (0.1μF, 400V) in parallel and then serial ultrafast recovery diode, formed R, C, VD protection circuit. C5 is the bypass capacitor of Vcc side. S for control switching power supply, the key of on/of. After in series with R7 S, it can improve the reliability of mode conversion. VD6 and C6 form the high-frequency rectifier filter of the feedback coil output. Secondary high-frequency rectifier uses Schottky diode with high current, low voltage the model is MBR20100CT (20A/100V). The tube is common cathode, the two negative electrodes (cathode) are short circuited interiorly, it needs the two positive(anode) connected in parallel externally. C8, C11, L, C12 and C13 form the output filter circuit. In view of the inductance of filter inductance L is small, only 5.0μH, and large-capacity filter capacitors C8, Cl1 have equivalent inductance Lo, it will directly affect the actual inductance from L into L + Lo, so it should take the voice φ0.55mm enamelled wire with 7-turn around the feeder ring N3, and around the middle of the frame, to reduce leakage; also should around two layers of polyester film. The model of ferrite core is E25. In order to prevent saturated magnetization, it should stay out of the air gap of 0.43mm between the two E-shaped cores. (View)

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Push-pull circuit diagram with CWl525A driven diode

Published:2011/3/24 4:03:00 Author:Nicole | Keyword: driven diode

Push-pull circuit diagram with CWl525A driven diode
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Low power switching power supply circuit diagram

Published:2011/3/22 2:25:00 Author:Nicole | Keyword: switching power supply

Low power switching power supply circuit diagram
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Skyworth 3T30 color TVs switching power supply circuit diagram

Published:2011/3/22 2:24:00 Author:Nicole | Keyword: Skyworth, switching power supply

Skyworth 3T30 color TVs switching power supply circuit diagram
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Extended output current circuit diagram with CW4962/CW4960

Published:2011/3/24 3:53:00 Author:Nicole | Keyword: output current

Extended output current circuit diagram with CW4962/CW4960

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Multiple integrated switching regulator L4970A／L4975A／L4977A(L4972A／L4974A) circuit diagram

Published:2011/3/22 1:18:00 Author:Nicole | Keyword: integrated switching regulator

Multiple integrated switching regulator L4970A／L4975A／L4977A(L4972A／L4974A) circuit diagram
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5.1V regulator circuit diagram composed by L4970A、L4975A、L4977A

Published:2011/3/22 1:13:00 Author:Nicole | Keyword: 5.1V regulator

5.1V regulator circuit diagram composed by L4970A、L4975A、L4977A
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5.1V／10A regulator circuit diagram composed of L4972A、L4974A

Published:2011/3/23 2:01:00 Author:Nicole | Keyword: 5.1V／10A regulator

5.1V／10A regulator circuit diagram composed of L4972A、L4974A
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MAX840/MAX843/MAX844 Integrated switching regulator circuit diagram

Published:2011/3/22 1:03:00 Author:Nicole | Keyword: Integrated switching regulator

MAX840/MAX843/MAX844 Integrated switching regulator circuit diagram
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Application circuit diagram of reducing the voltage output resistance

Published:2011/3/24 3:18:00 Author:Nicole | Keyword: output resistance

Application circuit diagram of reducing the voltage output resistance
In order to reduce the output resistance (reduce voltage drop), it can parallel up to a few pieces of MAX660, as shown. Then its output resistance is the output resistance of Rout = MAX660 / n (n is the number of MAX660 chip). (View)