Circuit Diagram

AC distribution unit monitoring alarm circuit(P50-II)

Published:2011/3/23 21:18:00 Author:muriel | Keyword: AC distribution unit, monitoring alarm circuit, P50-II

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Low cost power factor correcting circuit with IGBT switch

Published:2011/3/23 21:26:00 Author:muriel | Keyword: Low cost, power factor, correcting circuit, IGBT switch, MC34262

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Low cost CFL electronic ballast circuit with IGBT switch

Published:2011/3/23 21:27:00 Author:muriel | Keyword: Low cost , CFL electronic ballast circuit, IGBT switch, MUR180

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IGBT turn-off voltage waveform in the hard switching chopper circuit

Published:2011/3/23 21:29:00 Author:muriel | Keyword: IGBT , turn-off voltage waveform, hard switching , chopper circuit

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Crystal diode STTH60L06TV2 and STTH6110TV2 internal circuit diagram

Published:2011/4/12 22:55:00 Author:Rebekka | Keyword: Crystal diode

Crystal diode STTH60L06TV2 and STTH6110TV2 internal circuit diagram is shown as above.   (View)

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CMos drive circuit for LCD

Published:2011/4/12 22:52:00 Author:Rebekka | Keyword: CMos drive circuit

CD4054 A, CD4055A or CD4056A CMOS direct drive 7 LCD display digit.The circuit has the feature of internal level shift. The feature is to change 5V logical rotation to state-driven consumption LCD. It is integrant for 30V peak AC signal used by the LCD.   (View)

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Bypass switch with IGBT

Published:2011/3/23 21:37:00 Author:muriel | Keyword: Bypass switch, IGBT

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QRC Soft Switching flyback converter schematic diagram

Published:2011/3/23 21:44:00 Author:muriel | Keyword: QRC , Soft Switching, flyback converter , schematic diagram

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IF HVPS PWM circuit

Published:2011/3/23 21:48:00 Author:muriel | Keyword: IF, HVPS , PWM circuit, SG3524, PM10CSJ060

The connection of PWM signal and IPM intelligent power module PM10CSJ060 :   (View)

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Driver with integrated circuit TLP250

Published:2011/3/23 21:49:00 Author:muriel | Keyword: Driver , integrated circuit, TLP250

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IGBT drive circuit with discrete component

Published:2011/3/23 21:50:00 Author:muriel | Keyword: IGBT , drive circuit, discrete component, TLP560

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Active clamped RDCLI power circuit

Published:2011/3/23 21:56:00 Author:muriel | Keyword: Active , clamped, RDCLI , power circuit

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The multivibrator composed of CD4017

Published:2011/4/13 2:17:00 Author:Ecco | Keyword: multivibrator

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The pulse generator with adjustable duty cycle and frequency

Published:2011/4/13 2:15:00 Author:Ecco | Keyword: pulse generator w, adjustable duty cycle , adjustable frequency

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Pulse width controllable pulse generator composed of CC4516

Published:2011/4/13 2:14:00 Author:Ecco | Keyword: Pulse width, controllable , pulse generator

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Simple pulse signal generator composed of 74LS00、74LS221

Published:2011/4/13 2:12:00 Author:Ecco | Keyword: Simple , pulse signal generator

The simple pulse generator circuit is shown as the chart. The pulse generator mainly adopts two TTL signal generator IC (74LS00 and 74LS221) to generte the τ = 4μs pulse signal, it uses fewer components, so it's easy to do debugging and maintenance.   (View)

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Self-control digital inverter power supply circuit diagram:1.2V rising to 9V

Published:2011/4/13 2:05:00 Author:Ecco | Keyword: Self-control, digital inverter, power supply

It does not require the establishment of a separate power switch or transformation to switches in the table. The circuit has the advantages of low power consumption, stability and reliability, no effect on instrument accuracy and so on. The transformer T in the circuit is E3-type core, to cut off each corner and process to be the mouth shape, L2 is inside while LJ is outside. When the inverter power supply works, the battery current is about 70mA. As shown in the chart:   (View)

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Light control LED flashing circuit diagram

Published:2011/4/12 22:44:00 Author:Rebekka | Keyword: Light control LED flashing

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4 Direct drive LCD display circuit diagram

Published:2011/4/12 22:42:00 Author:Rebekka | Keyword: Direct drive LCD display

Each part of LCD has individual counter, latch, decoder and driver. Pumping signal feeds back to the motherboard of LCD. When the display section is disconnected, the phase and amplitude of the motherboard and display segment drive signal are the same. It shows no voltage on the 2 ends of display. When the display segment is triggered, its pumping signal phase position will be lager than 180 °, so the square wave voltage is 2 times than power supply voltage value. BCD code input signal can be produced from the dual BCD counter of cascade MC14518.   (View)

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LC square wave generator

Published:2011/4/13 1:50:00 Author:Ecco | Keyword: LC , square wave , generator

Square-wave generator with LC circuit can get a better frequency stability, it's as shown in the chart. This three-terminal oscillator of capacitor can be used to generate a square wave, but an operational amplifier is used as the active component.   (View)

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