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  • COLOR_AGC

    2014-11-10 01:34:00116

    Supplies bias voltage to r-f and video i-f stages of color set using transistors in all but deflection and recliner stages, to maintain video output am...

  • RP-type ideal diode circuit

    2014-11-10 01:28:4971

    Clamping circuit is difficult to achieve in non-inverting idealized diode circuit. Inevitably the output can be saturated on the negative potential. Th...

  • High voltage speed optocoupler and application circuit diagr

    2014-11-10 00:07:16186

    High speed optocouplers, its technical parameters are as follows: Rise time t1 ≤ 300ns; Circuit eye transfer ratio CTR = 50%; Isolation voltage VSO ≥...

  • DIODE_MODIFIED_SCHMITT_TRIGGER

    2014-11-09 23:09:41168

    Addition of Rb and D1 reduces loading on driving circuit when Q1 is on, there by preventing input signal from being clamped. Same signal may therefore ...

  • Charger principle circuit diagram

    2014-11-09 21:26:3282

    It uses 1 / 10 rated capacity ( 145 mA charging current) to charge for 14 to 16 hours. The charger charging current is about 170 mA, and the charging t...

  • Latch_circuit_using_an_LM3909_chip

    2014-11-09 20:05:47106

    Latch circuit using an LM3909 chip. Circuitry inside dashed lines is the LM3909, The circuit switches to and holds its condition whenever the switch ch...

  • TEMPERATURE_MONITOR

    2014-11-09 20:03:05153

    Senses variations in ambient temperature near telemetry detector in space probe. Zener diode maintains constant voltage on transistor base.-S. Chase, J...

  • Recordable electronic doorbell

    2014-11-09 19:43:33140

    The recordable electronic doorbell is composed of the recording and playback integrated circuit IC, resistors Rl-R6, capacitors Cl-C4, microphone BM, s...

  • Two-tone electronic doorbell 2

    2014-11-09 19:36:2173

    The two-tone electronic doorbell circuit is composed of the trigger control circuit and doorbell generating circuit, and it is shown in Figure 3-108. T...

  • Video_amplifier_dc_stabilization_summing_point_technique

    2014-11-09 19:30:21110

    In this circuit, A2 handles high-frequency inputs while A1 stabilizes the dc operating point. The 4.7 k-220-Ω divider at the A2 input prevents excessi...

  • Multiplier_circuit_using_an_AD533

    2014-11-09 19:19:5091

    Multiplier circuit using an AD533. With X and Y at zero volts adjust Zo for a zero-volt DC output. With Y at 20 volts peak to peak 50 hertz and X at ze...

  • 30_KC_HALL_GENERATOR_SAMPLING_SWITCHES

    2014-11-09 15:27:1284

    Control current circuits of series-connected Hall generators X are pulsed alternately for switching d-c input signal. Triggering for identical circuit ...

  • 118_to_136_MHz_broadband_RF_amplifier_using_a_2N6083_bipolar

    2014-11-09 14:30:44120

    118 to 136 MHz broadband RF amplifier using a 2N6083 bipolar transistor. This circuit is ideal for mobile operation since the recommended supply voltag...

  • Color_TV_chroma_amplifier_demodulator_using_an_ECG791_16_pin

    2014-11-09 13:29:1198

    Color TV chroma amplifier/demodulator using an ECG791 16-pin DIP. The circuit features shotl-circuit protection, ACC, and color killer. Typical sensiti...

  • Eggs automatic incubator 3

    2014-11-09 13:28:16124

    The eggs automatic incubator circuitis composed ofthe power supplycircuit, temperature / ventilation control circuit,eggs automatically turning circuit...

  • Multiplexed_BCD_to_7_segment_decoder_driver_displays_for_a_2

    2014-11-09 12:27:04103

    Multiplexed BCD-to-7-segment decoder/driver/displays for a 24-hour clock. Supply voltage of 160 to 200 volts is required to power the display (courtesy...

  • Eggs hatching incubator circuit diagram 2

    2014-11-09 12:04:19129

    The eggs hatch incubator circuit is composed of the power supply circuit and temperature control circuit, and it is shown as the chart. Power supply ci...

  • GLITCH_CANCELLATION

    2014-11-09 11:49:59109

    Fourth section of DG201 quad CM0S analog switch provides cancellation of coupled charges (glitches), to keep sample-and-hold offset below 5 mV over ana...

  • Line_operated_IC_timer_for_Long_time_periods

    2014-11-09 10:45:43111

    This circuit provides tum-on to a 2.5-A load after a long time period. The delay is set by the values of R1 and C1, as shown by the equations. The timi...

  • High_speed_video_peak_detector

    2014-11-09 09:37:5795

    This circuit shows an AH503 or AH504 connected as a video-peak sensor or detector, using a minimum of extemal components. Figure 3-60B shows the relate...

  • Stabilized_wideband_cable_driving_amplifier_with_low_input_c

    2014-11-09 06:44:11104

    This circuit has over 20 MHz of small-signal bandwidth driving 100-mA loads, capacitance or cable. Input capacitance is below 1.5 pF and bias current i...

  • IMPROVED_CODAN

    2014-11-09 03:34:3299

    Applied to first audio tube of receiver. Tube is biased off by zener diode in cathode circuit, and keep alive current is supplied to zener from B+. Act...

  • Vector_computer_using_one_AD531_multiplier_divider_and_two_A

    2014-11-09 03:19:2689

    Vector computer using one AD531 multiplier/divider and two AD741 op amps. The circuit derives the square root of the sum of the squares (courtesy Analo...

  • Shield_or_line_driver_for_high_speed_video_applications

    2014-11-09 02:54:4463

    This circuit uses the low input current, high speed, and high-capacitance drive capabilities of the LH0033 to full advantage for high-speed video appli...

  • 12_VDC_DRIVE

    2014-11-09 02:45:29150

    Circuit uses 791 power opamp in inverting configuration with gain of 10 for driving size 8 12-VDC servomotor in either direction. Article tells how to ...

  • Wideband_amplifier_for_test_equipment_applications_high_gain

    2014-11-09 01:50:0892

    This circuit shows a 9914A used in an application where high speed at a relatively high gain is required (a gain of 100in this case). With the values g...

  • BOOTSTRAP_TIMER

    2014-11-09 01:17:08112

    Q1 and Q2 form one-shot mvbr, with Q1 normally on. C1 charges toward 24 V through R1 and D1. Voltage on C1 is followed by Darlington circuit Q3-Q4. Fee...

  • Thermostatical electric radiator circuit using TC621

    2014-11-09 00:43:1972

    As shown in the circuit, the circuit consists of temperature control switch circuit, SCR trigger control heating circuit, music sound circuit and AC bu...

  • 8_to_1_video_switch_amplifier

    2014-11-09 00:41:19111

    This circuit uses two CA3256 ICs to provide an 8-to-1 video-switch function. The analog switches of channels 1 to 8 are digitally controlled by logic, ...

  • Automatic voice greeting circuit diagram

    2014-11-09 00:39:3481

    The circuit consists of two separate infrared transmitter and receiver circuits. In the circuit, 555 forms the multivibrator, and the duty cycle is 6:1...

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