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  • Overvoltage protection integrated voltage regulator circuit

    2016-09-13 18:55:3661

    R1=250Ohm, R2=6kohm are variable, Ci=1uF, Co=1uF is tantalum capacitor, CAdj=10uF, when VD1 and VD2 are 1N4002, Uo=1.25~32V.Above is Overvoltage prot...

  • EAR_PROTECTOR

    2016-09-13 18:31:1060

    The ear protector is actually a peak audio- detector/shutdown circuit that disables the amplifier through its chip-disable input when the output volume...

  • TRIAC_RELAY_CONTACT_PROTECTION

    2016-09-13 17:33:1560

    Circuit NotesThis circuit can be used to prevent relay contact arcing for loads up to 50 amperes.There is some delay between the time a relay coil is e...

  • 555 DC regulated power supply protection device circuit

    2016-09-13 16:07:3962

    The protector consists of depressurization regulated power supply, VDD=+(5~12)V, it depends on which voltage stablizing unit is adopted by IC1. The con...

  • VOUT terminal protection circuit diagram

    2016-09-13 15:39:2961

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  • OVER_UNDERVOLTAGE_PROTECTOR

    2016-09-13 14:25:0561

    The ICL7665 over/undervoltage detector manufactured by Maxim (IC1) monitors the line voltage and disconnects the load if the input voltage goes below 9...

  • Protection from Overvoltage and Overcurrent

    2016-09-13 13:49:2662

    View Full Size Image View Original Datasheet The LTC4361 overvoltage/overcurrent protection controller safeguards 2.5V to 5.5V systems from input suppl...

  • SBC overvoltage protection circuit diagram

    2016-09-13 13:45:1064

    The circuit is shown as above. It can use +5 V operating voltage SBC power supply. It can prevent the damage of the SBC to +5 V the entire SBC because ...

  • Zero sequence current phase protection circuit

    2016-09-13 11:29:3060

    The circuit is as shown, press the start button ST to lead the KM pulls. Then the motor M runs into normal operation. At this moment, three-phase load ...

  • TV lightning protection circuit

    2016-09-13 11:10:2364

    The application circuit of this set is shown in the picture. Watching TV on in thunderstorms, the thunderbolt can scurry into TV and damage it through ...

  • Steam iron automatic protection circuit diagram

    2016-09-13 09:38:3964

    The circuit is shown as above, the commercial power passes C5, R7, R8 buck, VD7 ~ VDl0 commutating and VD11 regulator. The circuit provides operating v...

  • Power_op_amp_voltage_regulator_with_overvoltage_protection

    2016-09-13 08:19:1161

    This circuit shows an LM12 (Fig, 10-46) connected with other components to form a positive regulator. The output is 4-70V, set by R9. Should the LM12 n...

  • 555 household appliances protector circuit

    2016-09-13 07:54:0460

    As the figure 15-6 shows, the household appliances protector is composed of the step-down rectifier circuit, the under-voltage over-voltage sampling ci...

  • Protect Car Electronic Modules Using RBO Circuit Protection

    2016-09-13 06:32:1361

    RBO40 is one of reversed battery and overvoltage (RBO) protection device which has been developed to protect sensitive semiconductors in car electronic...

  • Signal Wire Protection Circuit

    2016-09-13 06:24:1360

    Generally the signal wire would not be connected to ground when it is running. If take a two-polar gas discharging tube to connected between the two si...

  • SHORT_PROTECTION_AND_SHUTDOWN_CIRCUIT

    2016-09-13 05:37:4360

    An LT1301 is used in the figure to boost a 3.3-V or 5-V input to 12 V, as for Vpp for flash memory. Although the LT1301 features a shutdown control, th...

  • Thermal relay overload protection circuit

    2016-09-13 04:48:0060

    Thermal relay overload protection circuit can be applied to avoid the failure, which is as shown. FT is the thermal relay in the string for the circuit...

  • The mains over-voltage protection circuit of excellent natur

    2016-09-13 04:29:0261

    See as the figure, the circuit adopts the capacitor step-down and the simple regulated power supply circuit, when the power supply is normal, the volta...

  • Overvoltage Protector with Relay (HCPL2731S)

    2016-09-13 03:11:3461

    This article describes the Overvoltage Protector with Relay (HCPL2731S). The principle is very simple, very practical. The circuit components can help ...

  • The auto reset over-voltage protection circuit

    2016-09-13 02:23:2663

    The circuit in figure 5.41 includes the power supply, trigger starting and control circuit, it controls ON/OFF of the load R1 with the help of the dual...

  • Over-voltage protection circuit with the automatic reset fun

    2016-09-13 01:17:4361

    This circuit is composed of the power supply circuit, the trigger starting circuit and the control circuit, it controls the load RL to turn on and off ...

  • Transceiver Saver (Overvoltage Protector) circuit

    2016-09-13 00:27:2160

    This is a transceiver saver circuit that protect a transceiver device (applicable to other device as well) from overvoltage of the power supply. This c...

  • Laptop Protector

    2016-09-12 23:38:5061

    Protect your valuable laptop against theft using this miniature alarm generator. Fixed in-side the laptop case, it will sound a loud alarm when someone...

  • The person and equipment safe protection solid sensing switc

    2016-09-12 21:21:1760

    When the temperature of the chipincreases to theset value, Teledye is programming sensed by TSC620 temperature sensor switches. When it reaches the hig...

  • Starting protection circuit

    2016-09-12 19:34:5361

    When the circuit is in the state of normal voltage regulation, controlling circuit can always keep VT1 base current in a fixed number. But when the pow...

  • Cable radio and amplifier protector circuit diagram

    2016-09-12 18:09:2861

    The high-power amplifiers radio used in the broadcast room of cable radio towns in rural areas is easily damaged. The reasons are: The frequent use, no...

  • The protector circuit of 555 full auto fridge

    2016-09-12 16:42:4661

    IC1(555),R1~R3,RP1,RP2 ,VT1 and so on consist a over/low voltage circuit. In the voltage range of 170V~240V, the 2-lead of IC1 is in a low voltage, whi...

  • How to protect mosfet devices

    2016-09-12 16:01:0360

    MOSFET requires very careful handling particularly when out of circuit. In circuit a MOSFET is as rugged as any other solid-state device of similar con...

  • Protection Surge with Delay the relay using ic 4011

    2016-09-12 13:35:5775

    This circuit can be used to delay other appliances connected to the output of the relay. After working set To prevent equipment damage from pressure. S...

  • The driller safety protection controller

    2016-09-12 11:47:0160

    The working principle of the circuit The driller safety protection controller consists of the trigger switches Sl-Sn, resistors of R1 and R2, potentiom...

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