NPN Transistor common firing circuit:
Category: Circuit Diagram
PNP transistor common circuit
PNP transistor common circuit:
PNP transistor common transmitter and common collector circuit
PNP transistor common transmitter and common collector circuit:
-300V large pulse width adjustable circuit
-The 300V large pulse width adjustable circuit is mainly composed of four parts: (1) pulse forming stage; (2) Pulse shaping stage; (3) Power amplifier stage; (4) Level conversion stage.
Schematic diagram of capacitor instantaneous discharge
The circuit is composed of n-channel insulated gate FET Q, bypass resistance RC, energy storage capacitor C and switching diodes D1 and D2. A control pulse is input to the gate of insulated gate FET Q. when the gate of Q is low potential, the gate source voltage difference is zero, FET q is turned […]
FET to transistor driving circuit
The driving circuit is composed of buffer u, resistance R2 and a pair of low-power FET Q1 and Q2. When the control signal is at the low level, the same direction buffer u outputs the low level, so that the p-channel FET Q2 connected with the + 9 V power supply is turned on, the […]
Series input limiting circuit
The series input limiting circuit is composed of power supply VCC, resistors R1, R2 and R3, switching diodes D1 and D2, capacitors C1 and C2 and operational amplifier A, and input terminal 2 is grounded.
Balance bridge composed of gas sensing element and compensation element
The gas sensing element and compensation element form a balance bridge. When no gas flows through the sensitive element, the bridge is in equilibrium and the output is zero; When the gas flows through the sensing element, the balance state of the bridge is destroyed, so as to output an unbalanced voltage proportional to the […]
Schematic diagram of active damping circuit
In the schematic diagram of active damping circuit, RAD is the active damping resistance and QAD is the active MOSFET to reduce the power consumption of rad. RD and CD are delay circuit elements. DD is a reset diode for discharging CD.
Symmetrical grid control drive circuit
The gate drive voltage is provided by the trigger pulse through the push-pull output circuit. When the trigger pulse is at high level, V5 is cut off, the base of push-pull output circuit is at low level, V3 is cut off, V4 is turned on, current is drawn from the load, and the gate obtains […]