555 neon light high frequency and high voltage source circuit diagram
Source: InternetPublisher:无人共我 Keywords: Circuit diagram neon lights high frequency and high voltage Updated: 2021/03/15
This power supply is composed of a time base circuit 555 as the core, and the circuit is as shown in the figure. 555 and R1, R2, C2, etc. form a multivibrator with an oscillation frequency of f=1.44/(R1+2R2)C2
The oscillation frequency of the parameters shown in the figure is 17.8kHz, and the duty cycle of the output pulse is close to 1:1.555. After the output is cut by D3 and other bottoms, it drives the high-frequency amplifier VT1. Due to the access of the base D3 and LED1, the amplifier It works in Category C status. C5 is used to prevent the occurrence of reverse peak voltage and protect the transistor VT1. The secondary of the amplifier transformer can output a high-frequency voltage of about 12500V, which can be used to drive a 3-6m long neon lamp to ignite and glow. VT1 uses high-power tube 3DK308A or BU406, its electrical parameters are 7A/400V/60W, ft is not less than 6MHz.
ck="window.open(this.src)" alt="Click to see larger image"/>
- What is the relationship between capacitance and impedance in an AC circuit? How do you calculate the impedance of a capacitor?
- What factors are related to the hysteresis loss of the transformer? Can the hysteresis loss be reduced?
- How to read resistor color codes? Resistor color codes illustrated
- What is the difference between CPLD and FPGA?
- Datasheet/Pinout/Technical Specifications of LMC555
- Working principle and truth table of JK flip-flop
- Why use PWM? What are its advantages?
- Share a Motorola amplifier circuit
- Tutorial on building a NOT gate using BJT transistors
- LED lights that “drain” battery power
- Introducing the CD4013 washing machine timer circuit diagram
- Circuit diagram of verbal rescue box for patients who have fainted
- Wireless frequency modulation (FM) microphone circuit diagram using Q5337
- Homemade C3355 transistor 1km FM transmitter circuit diagram
- Level display circuit diagram composed of LED level meter driver integrated circuit
- Fingerprint identification system circuit diagram based on FPGA
- Solar power panel circuit diagram
- Instantaneous water heater automatic constant temperature experimental circuit diagram
- Car battery charging circuit diagram
- DC/DC converter LTC3441 circuit diagram