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Power supply monitoring circuit

Published:2011/5/16 19:03:00 Author:Christina | Keyword: Power supply, monitoring

Power supply monitoring circuit
The low-level voltage logic part is separated with the power supply by the optocoupler. If there is something wrong with the citcuit, the output voltage level reduces to the logic voltage level to adjust the output of the trigger and to close the whole circuit. The response time of this circuit is 2ms, when the AC grid voltage passes zero normally, there is on influence to the circuit. The power consumption of this circuit is 50 mW.   (View)

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Transistor UMH11N and EMH11, UMH2N, EMH2 internal circuits

Published:2011/5/16 9:49:00 Author:Christina | Keyword: transistor, internal circuit

Transistor UMH11N and EMH11, UMH2N, EMH2 internal circuits
The Transistor UMH11N and EMH11, UMH2N, EMH2 internal circuits are as shown:   (View)

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RTL8019 NIC circuit controlled by the 8052 single chip

Published:2011/5/16 10:08:00 Author:Christina | Keyword: NIC, single chip

RTL8019 NIC circuit controlled by the 8052 single chip
The RTL8019 NIC circuit controlled by the 8052 single chip is as shown:   (View)

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Transistor UMH14N internal circuit

Published:2011/5/16 9:47:00 Author:Christina | Keyword: transistor, internal circuit

Transistor UMH14N internal circuit
The Transistor UMH14N internal circuit is as shown:   (View)

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Pioneer M22K amplifier circuit

Published:2011/5/16 9:50:00 Author:Christina | Keyword: Pioneer, amplifier circuit

Pioneer M22K amplifier circuit
The Pioneer M22K amplifier circuit is as shown:   (View)

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Transistor UMH3N internal circuit

Published:2011/5/16 9:45:00 Author:Christina | Keyword: transistor, internal circuit

Transistor UMH3N internal circuit
The Transistor UMH3N internal circuit is as shown:   (View)

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transistor EMH3 internal circuit

Published:2011/5/16 9:44:00 Author:Christina | Keyword: transistor, internal circuit

transistor EMH3 internal circuit
The transistor EMH3 internal circuit is as shown:   (View)

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multi-channel buffer amplifier circuit

Published:2011/5/16 8:26:00 Author:Christina | Keyword: multi-channel, buffer, amplifier

multi-channel buffer amplifier circuit
The multi-channel buffer amplifier circuit is as shown:   (View)

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BA335-the integrated circuit of audio LEV sensors

Published:2011/5/17 1:22:00 Author:Borg | Keyword: integrated circuit, audio LEV sensors

BA335-the integrated circuit of audio LEV sensors
BA335-the integrated circuit of audio LEV sensors
BA335-the integrated circuit of audio LEV sensors
BA335-the integrated circuit of audio LEV sensors

BA335 is an integrated circuit of audio LEV sensors by Toyo Power Tool Corp., Japan, which is usually used in cassette radios as tape end detection, recording programme interval detection and the like.the internal circuit and pin functions of BA335 BA335 is a detection amplifier consisting of audio amplifiers, delay capacity comparators and driving stages. When the voltage and temperature are changing, the delay capacity of the comparator is still the same. The NPNs and diodes of the driving stage can output the maximum current-driven inductive load of 750mA.   (View)

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Weikeda VPA-100 amplifier circuit

Published:2011/5/16 9:42:00 Author:Christina | Keyword: Weikeda, amplifier circuit

Weikeda VPA-100 amplifier circuit
The Weikeda VPA-100 amplifier circuit is as shown:   (View)

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Transistor UMH8N internal circuit

Published:2011/5/16 9:46:00 Author:Christina | Keyword: transistor, internal circuit

Transistor UMH8N internal circuit
The Transistor UMH8N internal circuit is as shown:   (View)

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transistor UMH5N internal circuit

Published:2011/5/16 9:43:00 Author:Christina | Keyword: transistor, internal circuit

transistor UMH5N internal circuit
The transistor UMH5N internal circuit is as shown:   (View)

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The limiter circuit and the rectifier circuit

Published:2011/5/16 10:05:00 Author:Christina | Keyword: limiter, rectifier

The limiter circuit and the rectifier circuit
Figure (a) is the circuit of the voltage limiter, the forward limited pressure and the reverse limited pressure are: the regulator's regulator-value ​​UZ plus the diode's positive pressure drop 0.7V. Resistance R1 and R2 decide the amplifier system, when the output voltage UA ≤±(UZ)+0.7 V, the VO≈R2/R1.   (View)

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Spark 765A amplifier power-amplifier circuit

Published:2011/5/16 9:12:00 Author:Christina | Keyword: Spark, amplifier, power-amplifier

Spark 765A amplifier power-amplifier circuit
The Spark 765A amplifier power-amplifier circuit is as shown:   (View)

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Yong Zhen 80ASE amplifier preamplifier circuit

Published:2011/5/16 8:58:00 Author:Christina | Keyword: Yong Zhen, amplifier, preamplifier circuit

Yong Zhen 80ASE amplifier preamplifier circuit
The Yong Zhen 80ASE amplifier preamplifier circuit is as shown:   (View)

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Yin Huang A-888 amplifier karaoke circuit

Published:2011/5/16 8:57:00 Author:Christina | Keyword: Yin Huang, amplifier, karaoke circuit

Yin Huang A-888 amplifier karaoke circuit
The Yin Huang A-888 amplifier karaoke circuit is as shown:   (View)

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OPA606 amp circuit

Published:2011/5/16 8:53:00 Author:Christina | Keyword: amp circuit

OPA606 amp circuit
The OPA606 amp circuit is as shown:   (View)

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The amplifier circuit diagram using measuring amplifier circuit

Published:2011/5/17 1:42:00 Author:Ecco | Keyword: measuring , amplifier circuit

The amplifier circuit diagram using measuring amplifier circuit
The top-level of the amplifier uses the measuring amplifier circuit, of which features are high precision operation, high input impedance, easy adjusting gain, excellent common-mode rejection ratio and low offset temperature drift and so on. A1, A2 in the circuit form the first sub-amplifier differential, A3 forms the sub-second differential amplifier circuit (subtraction circuit). R3 and R4, R5 form a deep negative voltage series feedback network. The first differential amplifier gain is 10 times. The second differential amplifier gain is 1 times. That the total gain of this circuit is 10 times. Measuring amplifier is connected with a single-ended input, double-ended output.   (View)

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A positive and negative output adjustable voltage-stabilized power supply circuit

Published:2011/5/16 8:24:00 Author:Christina | Keyword: positive, negative, output adjustable, voltage-stabilized, power supply

A positive and negative output adjustable voltage-stabilized power supply circuit
A positive and negative output adjustable voltage-stabilized power supply circuit:   (View)

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LMl3600 gain amplifier circuit

Published:2011/5/16 5:42:00 Author:Christina | Keyword: gain amplifier

LMl3600 gain amplifier circuit
The LMl3600 gain amplifier circuit is as shown:   (View)

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