Published:2011/4/2 4:09:00 Author:Ecco | Keyword: digital circuit , binary true form, Anti-code , O/I circuit
74H87 binary true form/Anti-code, O/I circuit (View)
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Published:2011/4/20 4:38:00 Author:Nicole | Keyword: Voltage monitoring, reset
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Published:2011/4/20 8:55:00 Author:Nicole | Keyword: probe
If the polarity switch is in the position as shown, when the input probe receives low level(nagative)pulse, LED lights and it will keep lighting until the circuit is reset. If the switch is put to another position, when there is high level or +5V input pulse, LED lights too. (View)
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Published:2011/4/2 3:56:00 Author:Ecco | Keyword: digital circuit, double J - K negative edge, trigger
74 series digital circuit of 74107 74LSO7A double J - K negative edge trigger( with remove terminal)
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Published:2011/3/31 21:18:00 Author:Ecco | Keyword: digital circuit , double J - K , negative edge trigger
74 series digital circuit of 74LS113,74S113 double J - K negative edge trigger (with preset)
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Published:2011/4/2 3:55:00 Author:Ecco | Keyword: digital circuit , dual 4-bit latch
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Published:2011/4/2 3:55:00 Author:Ecco | Keyword: digital circuit, pulse synchronizer, pulse driver
74120 double pulse synchronizer/driver
It producesa single or a series of synchronous pulse with controlling function; Latch job promises that the output pulse won't be cut wave. High fan-outoutput complementary connects clock line drive system.
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Published:2011/4/20 1:21:00 Author:May | Keyword: Power output stage, switching power supply
Power output stage diagram circuit of switching power supply (50KHz-120KHz 1KW-2KW) (View)
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Published:2011/4/19 22:38:00 Author:May | Keyword: Push pull, complementary transistor, CMOS driving stage
It is using CMOS inverter 4049 as driving stage of inverter stage of TDA4700 's output signal and transistor T1, T2. Three inverters are parallel. Two output ends among them are separately adding to the base of two transistors in push pull circuit. Resistor R2 is used for controlling the circuit. When it can not guarantee enough voltage for SIPMOS tube's gate pole to offer a fixed potential, it can prevent the error breaking over of this tube. Capacitor C3 is used for shorting time constant R2CBE. Here, CBE is capacitor between base-emitter of transistor T. (View)
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Published:2011/4/20 2:47:00 Author:Jessie | Keyword: camshaft position CMP sensor, crankshaft position CKP sensor, ignition electronic control unit ICM
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Published:2011/4/2 4:24:00 Author:may | Keyword: drive, bridge type motor
Based on a kind of Mazda driver circuit is show in the following picture:
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Published:2011/4/11 1:09:00 Author:muriel | Keyword: 24Mb , data line
Through improving the performance of the receiver, the distant teletypewriter send the digital output to microprocessor, they can be obtained high data rate ability from square wave pulsed. The design of preamplifier compensates noise in a limited frequency range, until about 20MHz, with uniform signal / noise ratio. In the demonstration device, as shown in the figure visible light-emitting diodes and photodetectors, on the cable which is 19.2cm (40 feet) long its performance can meet the requirements. (View)
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Published:2011/4/19 1:34:00 Author:muriel | Keyword: standard application circuit , 5 end, adjustable , output voltage, integrated , regulator
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Published:2011/4/18 2:33:00 Author:muriel | Keyword: 10Mb, optical data circuit
The optical data circuit is used for between teletypewriter and micro place view device, it uses the broadband fiber optic to transmit dataat the rate of 10Mb. Receiver input end use C3808 PIN photosensitive diode.
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Published:2011/4/14 1:21:00 Author:muriel | Keyword: equalized charge, floating charge, change over circuit
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Published:2011/4/19 4:36:00 Author:Nicole | Keyword: constant temperature controller
The adjustable constant temperature controller circuit is asbelow. REF01E provides TMP17 with 10V high steady power supply, it can obtain a voltage singal from resistor R1, the voltage is in direct proportion t0 the measured temperature t. AD790 is a voltage comparator. If t represents the measured temperature and to represents the set value, when t>t0, the output of constant temperature controller is low level, when t<t0, it is high level. The value of to can be adjusted by potentiometer PR. C1 is denoising capacitance, C2 is accelerate capacitance. The output terminal of temperature control circuit controls the electric heating device by means of all kinds of actuators, then to achieve temperature control.
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Published:2011/4/14 2:20:00 Author:muriel | Keyword: 900w, full wave circuit
The circuit is composed ofSingle junction transistor trigger bidirectional triode thyristor and bridge rectifier. It use theRT control a wide range of resistive load . Pulse transformer T isolates the single junction transistor steady-state current and silicon-controlled rectifier control extremely.
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Published:2011/3/30 2:08:00 Author:muriel | Keyword: constant current source circuit
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Published:2011/3/30 2:07:00 Author:muriel | Keyword: power amplitude modulator
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Published:2011/3/30 2:07:00 Author:muriel | Keyword: standard , constant current source circuit
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