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  • Blind electronic compass circuit

    2014-11-08 05:35:12147

    The core device IC1 of electronic compass is a piece of hall-effect integration sensor UGN-3501M, its internal structure includes a hall unit and a lin...

  • 1991 Volvo 440 Electrical Wiring Schematic Diagram

    2014-11-08 03:16:27206

    The following document contains information related toVolvo 440 electrical installation schematic diagram. It such the wiring schematic for Volvo 440, ...

  • Color_TV_chroma_demodulator_with_direct_output

    2014-11-08 02:00:16123

    Color TV chroma demodulator with direct output. The ECG1099 is a 14-pinDIP with tab,R-Y,B-Y, and G-Y output voltages are 12 volts,3.8 volts,and 1...

  • Microcomputer Telephone Cost-Saving Device Circuit Diagram

    2014-11-08 01:23:26111

    The microcomputer telephone cost-saving device circuit is shown in the above picture. The circuit is made of anti-wiretapping and central processing. P...

  • 105_MHz_gate_2_contralled_RF_amplifier_using_a_TIS152_dual_g

    2014-11-08 01:09:45117

    105 MHz gate-2-contralled RF amplifier using a TIS152 dual-gate MOSFET This circuit has been optimized for third-order intermodulation distortion(court...

  • 80_METER_CW_DIRECT_CONVERSION

    2014-11-08 00:46:39124

    Resonant-dipole antenna feeds directly into balanced product detector that cancels strong interfering local broadcast signals but adds products of mixi...

  • Password electronic doorbell 2

    2014-11-08 00:12:47149

    The password electronic doorbell circuit is composed of the trigger circuit and music generating circuit, and it is shown in Figure 3-119. Trigger circ...

  • The Li-ion battery drive white light LED circuit composed of

    2014-11-07 23:33:43175

    LTC3202 is an electric charge pump without gates which is produced by Linear Technology Corp., in the figure is the Li-ion battery drive white light LE...

  • THERMISTORS_CORRECT_THRMETEAR_LINEARITY

    2014-11-07 22:15:01102

    Zero-temperature-coefficient resistors mounted near resistance thermometer element offset variation of lead resistance with temperature.-F. J. Goldwate...

  • The booster and electric charge pump converter drive LED app

    2014-11-07 21:25:5974

    In the figure, there are two projects, MAX1561 booster converter and MAX1573 pump, to drive the LED, and the complexes of the two circuits are almost t...

  • COLOR_DEMODULATOR

    2014-11-07 20:36:16123

    Uses two 6JH8 sheet beam lubes as red and blue luminance demodulators. Balanced outputs of both polarities on plates of tubes eliminate need for additi...

  • Animal litter teller device 2

    2014-11-07 20:29:35110

    The animal litter teller circuit is composed of the detection signal wireless transmitter circuit, wireless receiver alarm circuit, and it is shown in ...

  • BLOOD_PRESSURE_MONITOR

    2014-11-07 18:49:05259

    Continuous indication of blood pressure, with 3% fullscalle accuracy is obtained by mounting variable-reactance pressure transducer in 5-cc syringe ins...

  • TV_FM_sound_IF_with_tube_type_audio_output_stage

    2014-11-07 16:34:56145

    TV FM sound IF with tube-type audio output stage. The ECG710 contains a multistage wide-band amplifier section, a zener-regulated power supply section,...

  • 1_watt_noninverting_power_amplifier_using_an_MC1554_connecte

    2014-11-07 16:12:07134

    1-watt noninverting power amplifier using an MC1554 connected to a single supply. As shown voltage gain is nine (courtesy Motorola Semiconductor Produc...

  • Automatic washing circuit

    2014-11-07 14:48:40171

    The principle of automatic washing circuit is shown in figure 1, and220VAC circuitis bucked by transformer T, and it changes to low voltage current. Th...

  • Wideband_difference_amplifier

    2014-11-07 14:46:21140

    This circuit shows an AH0014 connected as a basic differential or instrumentation amplifier with a balance adjustment. The balance resistor is adjusted...

  • Password electronic doorbell 1

    2014-11-07 14:26:45126

    The password electronic doorbell circuit is composed of the electronic password circuit and music occurred circuit, and it is shown in Figure 3-118. El...

  • Analog_video_switch_and_amplifier_with_direct_coupled_input_

    2014-11-07 11:35:09127

    This circuit shows a CA3256 switch/amplifier connected for a direct-coupled input and output. One of four channels can be selected in parallel with cha...

  • ULTRASONIC_OSCILLATOR_KEYER

    2014-11-07 11:24:21177

    Generates keying pulses up to 2 sec wide at prf down to 0.1 pps. Oscillator cutoff bias is gated off during pulse operation and switched off during c-w...

  • Eggs automatic incubator circuit diagram 1

    2014-11-07 10:28:47236

    The eggs automatic incubator circuit is composed of the power supply circuit, automatic egg turning control circuit and temperature control circuit and...

  • Wideband_amplifier_for_test_equipment_applications

    2014-11-07 05:39:5999

    This circuit shows a 9826 used in an application where high speed at a relatively low gain is required (a gain of 5 in this case). Rx and Cx form a lea...

  • Air core inductor equations

    2014-11-07 05:32:40152

    Here are some air core inductor equations,because sometimes in electronic projects it's needed to design air core inductor, specially in radio frequenc...

  • Commutator_network_using_N_channel_MOSFETs

    2014-11-07 03:53:33107

    Commutator network using N-channel MOSFETs. All semiconductors are 2N4351s. Each switch has a three-input AND gate in series with the gate drive (court...

  • PN junction

    2014-11-07 03:16:00104

    A PN junction diode is an electrical device that allow current to move through it in one direction with far greater ease than in the other. A semicondu...

  • Programmable_gain_noninverting_amplifier_with_selectable_inp

    2014-11-07 03:10:02148

    Programmable gain noninverting amplifier with selectable inputs. The IH5052/53 chips are 16-pin DIP CMOS analog gates (courtesy Intersil, Inc.)....

  • Three-Port Voltage Regulator Internal Equivalent Circuit

    2014-11-07 01:03:44113

    The three-port voltage regulator's three ports are input port U1, output port Uo and common port COM which is usually connecting to the ground. Its int...

  • BLOOD_PRESSURE_REGULATOR

    2014-11-06 23:24:26150

    Chopper amplifier delivers d-c voltage to adder that is proportional to mean blood pressure. Potentiometers in adder permit introducing negative voltag...

  • Direct_coupled_wideband_log_amplifier

    2014-11-06 23:02:22107

    The SL521 shown in this figure is intended primarily for use in successive-detection log IF strips, operating at center frequencies between 10 and 100 ...

  • PORTABLE_TOY_SIREN

    2014-11-06 22:11:32132

    Can be assembled in small box as toy for small child. If mercury switch is used for S1, siren comes on automatically when box is picked up. MVBR Q1-Q2 ...

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