This circuit can be used for large current after use nickel-cadmium batteries, rechargeable batteries, but also as a general low-voltage DC power supply. This circuit by the charging section and the dc output parts. K2 is the fast charge, slow charge selector ..

As shown in FIG lithium battery is a constant current charging control board, the figure Q1, R1, W1, TL431 composition precision adjustable voltage regulator circuit. Q2, W2, R..

Can alkaline batteries charging problem, there are two different versions. Some say you can charge, the effect is very good. Some say absolutely can not charge the battery desc..

CGS-H ceramic humidity sensor constructed low humidity detection circuit diagram . ..

Circuit, if the thermistor K273 temperature reaches the setting level or not two sensor electrodes immersed in liquid, so that it is heated by turning on the relay. This ensure..

Due to the lack of speed in the entire series TTL monostable multivibrator, and because of the requirements of ECL voltage swing wide range of small and power, which drives us to use F series circuit having a fast transition..

Powerint's DER322 reference design uses LinkSwitch-PL family LNK460VG devices, the industry's first alternative 100W A19 incandescent LED driver using a single-layer PCB, a low-cost low component count and small size characteristics, efficiency of....

LTC3202 is Linear TECHNOLOGY company does not need a charge pump gated oscillator Pictured LTC3202 charge pump using a lithium-ion battery-powered white LED driver circuit...

LB140 is shown in Figure Five-digit LED level indicator typical driver IC circuit, BL1405 widely used tape recorders and tape recorders do with level indication...

A simple level power meter to provide high-fidelity sound system bar or dot matrix display. Green LED display 0-7; 8 show yellow, red 9, the LED displays peak power. This circu..

As shown in the circuit diagram for the LED signal amplification: ..

As shown in the refrigerator for the LED lighting circuit schematic. The circuit is composed of eight LED lights white LED high-brightness light-emitting tube. LED are mounted ..

As shown is BA6104 Five-digit LED level meter driver IC basic application circuit if the level is higher than required to display 1V, only 7 feet in the power supply Vcc indire..

As shown in Figure is a large high-brightness LED driver circuit for a sufficient drive current, integrated circuits using a 7447A or 74247. Digital display tube has eight ligh..

As shown, in FIG a decimal seven storage - Decoding - drive unit 74 143, this unit has a constant output for all segments. Each at a voltage of 5V when the current is about 15 ..

As shown below for the non-contact lantern control circuit. The controller includes integrated music CIC2851, drive BG1 and BG2, thyristor SCR and other components. When the sw..

As shown, mainly by the NAND gate IC1 (CD4096), counting/timing distribution circuit IC2 (CD4017), the analog electronic switch IC3 (CD4066) and the D flip-flop IC4 (CD40174) a..

Attached to the wall is a high-rise building construction elevator indispensable vertical transportation machinery. Its drive motor usually wound wire induction motor. Using th..

Circuit shown in Figure 11-14. It uses a one-way thyristor, is poured into the liquid level automatic control circuits. Electrodes for detecting sensing element for water or ot..

As shown for the lighting inverter circuit principle 6 ~ 12W fluorescent lamps. After mains buck, rectifier, filter charging the battery. When switched inverter operation, gene..

As shown for the lighting inverter circuit principle 6 ~ 8W fluorescent. The circuit is suitable for lighting 6 ~ W fluorescent tube circuit parameters are marked in the figure..

As a photoelectric switch with photoresistor circuit, the sensitivity is very high, as shown for the light control relay. At low illumination, VT nonconductive; when there is l..

As shown is composed of a transistor relay delay pull circuit. Just power, 16 F capacitor voltage is zero, two transistors are off, the relay does not operate. With 16 F capaci..

Affected by environmental interference by = to transfer switching Confidence disgrace will produce burrs. Switch position signal will control the computer system with lanthanum burr reliability..

Great LM111 / 211/311 power supply voltage range ( 5V ~ l5V), bias current, offset current, the differential input voltage range ( 30V), whose output is compatible with TTL, DTL and MOS circuits, and You can drive LEDs and relays . ..

This circuit is used to maintain the level between two fixed points. Just transform K1 contacts off the case, it can be filling or extraction work in two ways. Load can use AC motor or solenoid-operated valve. The liquid level is detected by the two probes....

As shown, the length of the transmission wire current loop circuit will introduce a radio frequency (RF) interference, RF energy can cause sensitive XT11l2 / 114 input errors, performance in an unstable loop current or input line current. If the RTD sensor..

7 feet for loudness compensation control terminal, the foot plus the DC control voltage can be composed of simple loudness compensation, was obtained additional high bass boost..

A single power amplifier circuit LM2876 crrL constituted. VTf external transistor to form the emitter type to provide neutral level (7 feet) for the LM2876, guaranteed lC relia..

A typical representative of the dynamic noise reduction by the United States National Semiconductor first be successfully developed and integrated LM1894 (see Table 1-3), the u..

And the general high-frequency circuits, in the microwave band, the use of microstrip circuits to achieve input and output matching and frequency selective amplifier circuit. F..

As shown for the LM4910 minimum output noise/reduce the output power circuit. Reduce output noise measures are: between the output terminal of a resistor in series with the loa..