Diagram Plus guide

Using the A3952S stepper motor controller ( designed by Allegro MicroSystems ) we can design a very simple and useful motor driver circuit that can be used in many electronic applications . A3952S stepper motor controller is capable of continuous output currents up to 2 A and operating voltages range up to 50 V. Internal fixed off-time PWM current-control circuitry can be used to regulate the maximum load current to a desired value. The MODE terminal can be used to optimize the performance of the...

The clock circuit above uses seven ICs and 19 LEDs to indicate binary coded decimal time. The LEDs can be arranged (as shown in example above) so that each horizontal group of 3 or 4 LEDs represents a decimal digit between 0 and 9 and each individual LED represents a single bit or (binary digit) of the value. Binary digits have only two values (0 and 1) so a number written in binary would be something like 1001 or 0011, which represents decimal numbers 9 and 3 respectively. From right to ...

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Simple Portable Amplifier Circuit Diagram Ul, an FET op amp needs a bipolar voltage atpins 4 and 7 with a common ground for optimum gain. You can calculate the gain by dividing R2 by Rl. Zero-set balance can be had through pins i and 5 through R3. Put a voltmeter between pin 6 and ground and adjust R3 for zero voltage. Once you`ve established that, you can measure the ohmic resistance at each side of R3`s center tap and replace the potentiometer with fixed resistors. R6, R7, RS,and C3...

Today phone has become an integral part of our lives. It is the most widely used communication tool in the world. Owing to its immense popularity & widespread use, there arises a necessity for call recording devices, which find application in call cent-res, stock broking firms, police, offices, homes, etc. Here they are describing a call recorder that makes use of only a few parts. But in order to understand its working, must first have the basic knowledge of standard phone wiring as well as...

This variable-frequency, audio bandpass filter is built around two 741 op amps that are connected in cascade. Two 741 op amps are configured as identical RC active filters and are connected in cascade for better selectivity. The filter`s tuning range is from 500~Hz to 1500 Hz. The overall voltage gain is slightly greater than 1 and the filter`s is about 5, The circuit can handle input signals of 4 V peak-to-peak without being overdriven. The circuit`s input impedance is over 200 kohm and...

This dc supply is great for operating battery-powered antique radios, because it is designed to prevent harming the tube filaments. The circuit is useful for powering filaments of 00-A, 01-A, 112A, and 71A tubes, which require 5V at 250 mA.  Antique Radio Dc Filament Supply Circuit Diagram ...

Power Supply in this article use a regulator that is composed of 2 pieces of NPN transistor. A transistor acts as a power regulator and a transistor again serves as a controller output voltage.Power Supply has an adjustable output with a range of 6-12 VDC. The part that serves as a power regulator is Q1 TIP31. Then the controller output voltage is a voltage divider composed of R3, R4, VR1 and R2 provide bias to the base of Q2 to Q1 mengentrol power regulator. In a series of power supply is mounted...

Amplification is the method of increasing the amplitude of a AC signal current or voltage such as audio signal for sound or video signal for a television picture. The amplifier allows a small input signal to control a bigger amount of power in the output circuit. The output signal is a replica of the original input signal but has higher amplitude.Amplification is necessary as in most applications, the signal is weak to be used directly. For example, an audio output of 1mV from a microphone is unable...

Logarithmic Amplifier Circuit Diagram Unusual frequency compensation gives this logarithmic converter a 100 µs time constant from 1 mA down to 100 µA, increasing from 200 µe to 200 ms from 10 nA to 10 pA. Optional bias current compensation can give 10 pA resolution from - 55 °C to 100 °CScale factor is 1 V/decade and temperature compensated .Logarithmic Amplifier Circuit Diag...

Power supply circuit to generate output below were variations between 1.3V DC to 12.2V DC with 1A current. In addition, the power supply circuit is also equipped with over-current protection or shield against belebih flow. Power supply circuit is very simple, but the quality is quite good, made her basiskan regulator IC LM723 is a pretty legendary.Description: R2 to set the output voltage. The maximum current is determined by R3, over-current protection circuit inside the LM723 to detect the voltage...

This simple ON OFF touch switch circuit is based on the well known timer IC 555 (IC1), which drives a relay that acts like a switch. The metal surfaces can have what form we want, but it should be clean and very close to the circuit.Touch plate MP1 in order to close the contact of relay RL1 [ON], or plate MP2 in order to open the contact of RL1 [OFF]. The Led D2 turns on when the contacts of RL1 are closed. Two small pieces of metal can be used as sensor plates. 555 ON/OFF Touch Switch Schematic...

This is an simple and cheap LED flashing circuit.This circuit work for at lease 10V-13V power supply.Data sheet 2N2222 which is equivalent of KSP2222. ...

5.1 channel amplifier consists of 6 amplifiers 1 channel mono, which has certain specifications on each canals. Has 6 channel surround sound amplifier that consists of Front Left ,Center,Front Right ,Rear Left (Left Surround),Rear Right (Right Surround) , and LFE (Subwoofer).For clarity I give a simple illustration of the layout and the circuit for these speakers.5.1 Speaker SetupAccoustic Field GeneratorAcoustic Field Generator is generating acoustic sound with surround effects are adjustable...

A circuit for monitoring supply voltages of ±5 V and ±12 V is readily constructed as shown in the diagram. It is appreciably simpler than the usual monitors that use comparators, and AND gates. The circuit is not intended to indicate the level of the inputs. In normal operation, transistors T1 and T3 must be seen as current sources. The drop across resistors R1 and R2 is 6.3 V (12 –5 –0.7). This means that the current is 6.3mA and this flows through diode D1 when all four voltages are ...

This is Simple Regulator Loss Cutter Circuit Diagram . Large input-to-output voltage differentials, caused by wide input voltage variations, reduce a linear regulator`s efficiency and increase its power dissipation. A switching preregulator can reduce this power dissipation by minimizing the voltage drop across an adjustable linear regulator to a constant 1.5-V value. The circuit operates the LT1084 at slightly above its dropout voltage. To minimize power dissipation, a low-dropout linear...

The roll-out of smart meters in the UK is expected to help lower carbon emissions in homes and businesses. With the transparency and simplicity they will provide to customers with regards to both billing and understanding energy usage, it is easy to appreciate how smart meters will help the UK to lower its overall carbon emissions and meet the targets it has in place to cut these by 12.5 per cent by 2012. Prosenjit Dutta, head of advanced metering infrastructure (AMI) practice within the utilities...

The National Semiconductor LMV225 is a linear RF power meter IC in an SMD package. It can be used over the frequency range of 450 MHz to 2000 MHz and requires only four external components. The input coupling capacitor isolates the DC voltage of the IC from the input signal. The 10-k? resistor enables or disables the IC according to the DC voltage present at the input pin. If it is higher than 1.8 V, the detector is enabled and draws a current of around 5–8 mA. If the voltage on pin A1 is...

Integrated circuit anti-theft alarm system, wire or other lack of a simple circuit. When the lack of wires or cords lacking. MOSFET, it is working or has input voltage at pin G and thus it has a high current flows through the pin D-S that Micro piezo siren was so loud.Part ListR1  100K 1/2W 1% ResistorR2, R4  10K 1/2W 1% ResistorR3 1  Meg 1/2W 1% ResistorC1, C3  0.1uF Ceramic Disc CapacitorC2  0.01uF Ceramic Disc CapacitorIC1  4001UBE Quad 2-i/p NOR GateQ1  MPSA14...

24v DC is a very popular voltage used in industrial settings. This hobby circuit below was designed to accept four different 24v DC alarm input signals, which are then used to drive a single low power beeper. The beeper is a magnetic type with its own oscillator/driver. The four diodes form an “OR” gate so any one of the four inputs will cause the beeper to make noise. A CMOS version of the popular 555 timer is used to strobe the beeper on and off at about 1Hz.Source :Streampow...

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The DUAL LU43 is petite stylish size, but towering on sound. This 3-way multi-point orator is designed to transport accurate astronomical-fidelity sound apart from of placement. The weather-tough design makes the LU43 ideal intended for undying otherwise temporary open-air avail yourself of. incorporated with the LU43 bring out fix is an amendable logo for vertical before horizontal mounting options. The LU43 is by national absolutely something like anywhere as well as areas ranging from back yards,...

Shiftlight does not respond to buttons being pressed. The engine must be running in order to set the pre-shift and shift points on the shiftlight. The unit requires an input signal (tachometer, coil negative, crank angle sensor)if there is no input signal the unit will not respond whenbuttons pressed. MITSUBISHI RVR N23W 4G63 1992 – 97 GM – 2 President G50 VH45DE 1990 – GN – 4 Infinity Q45 G50 VH45DE 1989 – 97.Pajero V23W 6G72 1991 – GM – 2 N74W 4G64 GM – 3 N73W 4G63 M/T GM – 3 N71W 4G93 N61W 1997...

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