The amplifier tube protector circuit is as shown in the figure.Working principle: K is the power supply switch, T1 is the small control power transform...
See as Figure 13-7, the circuit includes step-down rectified circuit, turning on delay circuit and controllable silicon control circuit. In the circuit...
See as the circuit, the +24V is generated by stepping down the 110V power supply. When the touch spot JK of the magnetic sucker circuit is closed, the ...
Electronic transformer with overcurrent protection circuit shown in Figure:( 1 ) The core of the circuit is determined by C2, C3, T3, L3 trigger circui...
Power source that, when connected to an external circuit, and now will turn to a current surge.Power supply is a high voltage surges.External circuit t...
The picture shows the DC regulator power with short circuit protection. The circuit uses the bistable circuit, which composed of VT7 and VT8, as the pr...
F/V convener with input diode protection against high-voltage transients. Model 451 has a 0 to 10 kHz full scale input range and model 453 has a 0 to 1...
As shown in data line protection for the SIM card. SIM card data line protection has been the focus of each companys products design. Select the device...
The picture shown below is about the current-reducing protection application cirrcuit with output voltage of 15V and output current of 2A which is comp...
A simple way to protect the gate of a power MOS device is to place back-to-back zener diodes between the device's gate and source (a). The breakdown vo...
The M17 movement protection circuit is as shown:...
During normal working, Tr1 and Tr2 are both disconnected, 555 resets, the discharge transistor in 555 is connected, it drains current from the base of ...
View Full Size Image View Original Datasheet Thermocouple wires are intended to be electrically floating in order to detect temperature by producing th...
The speaker overload protection circuit is as shown in figure 5. The power is 650mW, the power voltage is 12V, the resistance of the speaker is 25Ω....
The input to the circuit is taken from the amplifier's speaker-output terminals or jacks. If the right-channel signal is sufficiently large to charge C...
Developed for MOS RAM in which accidental removal of -5 V bias supply would allow buildup of currents flowing between +12 V and ground to value suffici...
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...
Simple resistive SWR bridge provides dummy load, relative power output indicator, and safe method of tuning transmitter without destroying transistors ...
Solid-state relay circuit with input protection of the MOC3011 triac driver. The input voltage to the protection circuit can be 3 to 30 volts DC (court...
Simple overvoltage protection circuit makes 10-V zener conduct when voltage E1 being measured goes over 20-V full-scale limit of voltmeter using millia...
This is a three phase three-wire system power supply phase failure protection circuit, if lacking any phase of A, B, C, the optic coupler output level ...
The MN67790 is designed as one kind of copyright protection decryption integrated circuit that is produced by the Panasonic corporation, it can be used...
DC meter protection circuit. The diodes will not conduct until the voltage across the meter reaches 0.5 to 0.7 volts. For a typical meter movement with...
Sometimes it so happens that a bench power supply output remains no longer controlled because of a defect and invariably it shoots up dangerously. Thus...
This is a transceiver saver circuit that protect? a transceiver device (applicable to other device as well)? from overvoltage of the power supply. This...
High-voltage passivated mesa transistor in output stage of Japanese home radio is protected by silicon varistor R.-T. Kojima and M. Watanabe, When You'...
25 ohm speakers overload protection circuit diagramThe power of overload protection is 650mW, power supply voltage is 12V, speaker 25ohm.Part of the co...
Contain divide this friends many you may face a problem economical. A steal the very. Today I then beg for to advise the circuit protects steal again m...
Current-limiting resistors are used in series with sections of DG300 dual analog switch to limit contact currents to 30 mA continuous or 100 mA pulsed ...
The awesome Power IC : Lm78l05 5v 500ma Regulator With Short Circuit Protection Circuit Schematic. image above is another portion National LM78LXX Seri...
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