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Differential amplifier circuit four connection methods and features comparison b
Differential amplifier circuit four connection methods and features comparison b b.0 magnification of a single tube of half earnings due anti-common-mode negative feed-effects,
A simple three-way speaker crossover circuit diagram
Divider is the speaker of the brain, is crucial to the sound quality is good or bad. Music amplifier output signal must divider wave filter element processing, so that each uni
BTL amplifier composed by a single amplifier
Discrete components 13TL amplifier, the circuit structure is complex, with an integrated power amplifier circuit of BTL amplifier circuit structure is simple, performance and q
Differential amplifier circuit four connection methods and compare the characteristics of d
Differential amplifier circuit four connection methods and compare the characteristics of d d. O magnification equal to a single tube of half has a high common mode rejection c
Differential amplifier circuit four connection methods and characteristics of comparison c
Differential amplifier circuit four connection methods and characteristics of comparison c c. O magnification with a single tube with the same When the circuit is symmetrical.
Differential amplifier circuit four connection methods and compare the characteristics of a
Differential amplifier circuit four connection methods and compare the characteristics of a a. O magnification and single-pipe with When the circuit is symmetrical common-mode
Bidirectional thyristor AC contactor interface circuit
Device for intermediate relay. As shown in Figure is the use of Triac AC contactor interface circuitry. Which is using MOC3041 Triac output optical coupler for triggering the T
Electric shaver circuit
Electric shavers thorn circuit shown in Figure 1-17. Shown by the capacitance C buck, buck capacitor C is lyF/450V, pass through the diode VD, to 1.2V nickel-cadmium batteries.
Connection of the stator coils b
Connection of the stator coils b Shows the structure and connections of the stator coil, and FIG. (A) shows a triangular connection, Figure (b) shows a star connection, star co
Constant current function module is disabled port junction
Constant current function module is disabled port junction figure, 13 feet; OFF, constant current ban port. Loss of function when OFF constant current is grounded, the module i
Surround circuit composed by the TDA3810
Figure 1-122 is a dedicated high-fidelity surround sound processing IC TDA3810 circuit consisting of surround sound. Stereo signal via the input coupling capacitor cJ, C2 input
TDA3910 Internal Block Diagram
Figure 1-123 is an internal block diagram of the TDA3810 o The circuit can operate in three modes of operation: (1) may be mono channel stereo signal into an analog signal; (2)
OCL power amplifying circuit
Figure 1-30 is an example of an OCL power amplifier circuit, the following specific analysis: In Figure 1-30, VTi, VTz form a single-ended input and differential input single-e
Single-junction transistor a phase-shift trigger circuit
Figure 16-29 (a) of the trigger output via a resistor R2; FIG 16J29 (b) for the introduction of programmable single-junction transistor PUT trigger circuit. Adjustment potentio
Variable resistive phase-shift trigger circuit ab
Figure 16-3 (a) one-way thyristor; Fig. 16-3 (c) for the triac. Circuit characteristics: O simple phase shift range 90. [Figure 16-3 (a)], phase shift range 180. [Figure 16-3 (
As current feedback circuit of four b
Figure 16-40 three-phase rectifier circuit current cutoff feedback circuit. Figure 16-40 (a) use three current transformers; Fig. 16 40 (b) using two connected in open delta se
A six thyristor AC switch circuits
Figure 16-48 (a) for the introduction of six thyristor three-phase AC switching circuit; Figure 16-48 (b) as adopted by three triac circuits. Suitable for motors and other indu
The LM3886 BTL amplifier
Figure 2-60 is LM3886 amplifier roar practical circuit, the circuit with one NE5532 as preamplifier, output power up to 200Wo. LM3886 power amplifier for use, due to the large
Electronic energy-saving lamp circuit 3
Figure 289 Star STMicroelectronics (ST) deputy public cattle produced VK05CIl. ASIC production of electronic front desk lamp can be lit 5-15W low-power compact fluorescent lamp
Ten-way operation of the dynamic braking circuit
Figure 3-142 for the reel control circuit means. Coiler is used to wound with plastic banding (such as grafting with banding tape) of. The length of plastic tape wound on a pla
High-performance recording front end circuit
Figure 3-17 is a pre-equalizer amplifier having a sound recording function has the following characteristics: (1) the circuit does not have a conventional mechanical switch cir
Transistor attenuation - feedback tone circuit
Figure 4-11 is a feedback attenuator consisting of transistors tone control circuit. The circuit in addition to a conventional high, bass control system, balance control, volum
Tone selector circuit
Figure 4-12 is a five-speed type tone selector schematics o as follows: circuit, IC1 and other components electromagnetic phono equalizer amplifier, I bar and external RC compo
Restructuring of the pitch by the pitch selector circuit
Figure 4-13 is an adaptation of a common attenuated tone control from the pitch selector. It consists of two magnifications of each of the amplifiers 10, Icl used as a line amp
FSK Demodulator/Tone Decoder with RC2211N
A monolithic phase locked loop for data communications. The IC contains a basic phase locked loop for tracking an input signal within the pass band, a quadrature phase detector which provided carrier detector and an FSK voltage comparator which provides FSK demodulation. In the circuit shown, the IC is used as an FSK demodulator such as would be...
Temperature Controller with U217B
A triac controller for switching resistive loads directly from the mains supply using the zero crossing technique. The device is powered directly from the mains via a diode and dropper resistor, and the IC has its own regulator to limit its supply to 9.25V. To ensure that no switching occurs outside of the zero crossing point, full wave logic is...
Fast circuit breaker
This 115 Vac, electronic circuit breaker uses the low drive power, low on resistance and fast turn off of the TMOS MTM15N50. The trip point is adjustable, LED fault indication is provided and battery power provides complete circuit isolation. The two "circuit breaker" terminals are across one leg of a full wave diode bridge consisting of D1-D4....
Schmitt trigger comparator
The comparator has an output pull-up resistor RL and is connected up to operate as a Schmitt trigger using the single rail supply Vcc. The feedback resistors Rl and R2 give upper and lower threshold levels VT+, VWxw, respectively. VT+ is easily set by suitable resistor selection but there is little independent choice of VT_ because VT_ cannot...
Solid state stepping switch
This circuit was designed to make switching of a 48-channel mobile transceiver safe to operate while mobile. The oscillators allow for single-stepping or a scanning function. The scan facility allows for stepping through all 48 channels to check for occupancy or otherwise, and each output is indicated with an LED and labeled accordingly, so...
555 Astable oscillator
This free-running multivibrator uses an external current sink to discharge the timing capacitor, C. Therefore, interval ^ may easily be 1000 the pulse duration, t1( which defines a positive output. Capacitor voltage, V^, is a negative going ramp with exponential rise during the pulse output periods.
Dc static switch
This circuit is a static SCR switch for use in a dc circuit. When a low power signal is applied to the gate of SCR1, this SCR is triggered and voltage is applied to the load. The right hand plate of C charges positively with respect to the left hand plate through Rl. When SCR2 is triggered on, capacitor C is connected across SCR1, so that this...
Voltage comparator circuit
An op amp is used as a comparator and a sink for LED current. The output voltage of the amplifier changes about 1.4 V depending on the direction of the current. Only one transistor is on at any time. Maximum LED current is limited to 25 mA by overcurrent protection of the uA741.
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
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