DATASHEET and Circuit Diagram

The L6203 has a full H-bridge integration in a single package, it is ideally suited for controlling DC motors. The schematic diagram below shows L6203 bidirectional DC motor control when combined with a current regulator L6506 to implement a transconductance amplifier for speed control.

This L6203 bidirectional DC motor control circuit appears only half of the L6506 is used and the other half of device may be used to control a second motor.

L6203 Bidirectional DC Motor Control Circuit Diagram continued »

The schematic diagram below appears LM3909 Typical 1.5V Flasher circuit. It is known that LM3909 is an oscillator, a monolithic one, which is designed to flash Light Emitting Diodes (LED). According to the datasheet, it may deliver pulses of 2 more volts while operating on a supply of 1.5V by using the timing capacitor.

The LM3909 features low cost, low voltage and low current drain, with a bright-high current LED pulse and wide temperature range. It can be applied on applications such as flashlight finder, siren for toy fire engine, sawtooth generators, emergency locators, warning indicators and etc.

LM3909 Typical 1.5V Flasher Schematic Diagram and Datasheet continued »

The schematic diagram herein shows Nissan AT model starting system operation with theft warning system.

The Nissan  AT model starting system outlines inhibitor switch, inhibitor relay, ignition switch, fuse, fusible link, contact plate, plunger, starter motor, and the battery.

Nissan AT Model Starting System Circuit Schematic continued »

The schematic diagram below shows us with an example of RS485 General Purpose Network Circuit Diagram. If we need to transfer small blocks of data over long distances we may use RS485 standard interface for this purpose since its flexibility may provides a choice of drivers, receivers, and other components depending on the cable length, data rate, number of nodes, and the need to conserve power, accordingly.

According to the schematic diagram, the general purpose RS485 circuit above can have up to 32 nodes. Each of node has SN75176B transceiver that interfaces between RS-485 and TTL logic levels. If you read fully, you will be described with sections such as general purpose link, simplified low-power link, short circuit protection, isolated link, and auto-switching link.

RS485 General Purpose Network Circuit Diagram continued »

The herein schematic appears typical stepper motor application with NJM3771. This stepper motor driver device is designed for use in microstepping applications in conjunction with the matching dual DAC (Digital-to-Analog Converter) NJU39610, according to the datasheet.

NJM3771 Dual Stepper Motor Driver features Dual chopper driver, 650 mA output current per channel, and Selectable slow/fast current decay for improved high-speed microstepping. Instead of capable for driving up to 650 mA continuous motor current, each channel of the NJM3771 consists of an H-bridge output stage, a logic section that controls the output transistors, an S-R flip-flop, and two comparators.

NJM3771 Stepper Motor Application Circuit and Datasheet continued »

LM4562 commonly used in applications such as High fidelity preamplifiers, High fidelity multimedia, High performance professional audio and many more high fidelity applications as stated in the datasheet. This LM4562 features are Optimized for superior audio signal fidelity, Easily drives 600 Ohms loads, Output short circuit protection, PSRR and CMRR exceed 120dB and VOS (0.1mV) which give excellent operational amplifier DC performance ability.

In the application note information within the LM4562 Datasheet, you will find detailed sections discuss about distortion measurements technique with Noise Measurement Circuit (click to enlarge), LM4562 Typical Circuit Diagrams for such NAB Preamp, Balanced to Single Ended Converter, Sine Wave Oscillator, AC/DC Converter, Tone Control, RIAA Preamp, Balanced Input Mic Amp, 10 Band Graphic Equalizer, and more.

LM4562 High Fidelity Audio Op Amp Datasheet continued »