Inverter drive circuit
Source: InternetPublisher:失踪的猫 Keywords: Inverter drive circuit BSP Updated: 2021/01/29
Inverter drive circuit
Shown is the drive circuit of the inverter , which mainly consists of a complementary push-pull output circuit (composed of two transistors with different polarities) Q3,
field effect transistor Q2, inductor LJ, diodes Dl, D2, etc.
It can be seen from the figure that the PWM pulse signal output by the ⑩ pin of the control chip IC2 is buffered and amplified by Q3 and then excites Q2, and Q2 works in the switching
state. Q2, Ll, Dl, and D2 form a filtered step-down switching circuit. When Q2 is turned on, +14 V supplies power to Ll and the suffix load.
The current in Ll cannot disappear immediately. Due to its self-inductance, its voltage response is reversed. rotation; the energy stored in Ll will supply power to the load through the freewheeling diode
. When the switching frequency is constant , the length of Q2 conduction time determines the level of the output voltage.
- Analysis of the working principle of switching regulator
- How to Make a Soft Latch Circuit
- Build a simple buck-boost regulator and test it on a breadboard
- Cleverly use the electronic ballast of waste energy-saving lamps as power supply transformer
- Miniature polarity reversal power supply using MAX1721
- CNC regulated power supply production
- 0.7~24V continuously adjustable current limiting power supply
- Reconstruction of the tube pre-stage by using low voltage difference power supply
- Adjustable voltage regulated power supply circuit
- Self-made high-stability, high-current, DC adjustable voltage-stabilized power supply using operational amplifier
- electromagnetic field sensor
- soil content measurement circuit
- Egg warming circuit
- Crop anti-frost circuit
- Rural fish farming control circuit
- Greenhouse temperature control circuit
- Soil water shortage prompt circuit
- Electrical schematic diagram of DC voltmeter input at non-inverting terminal
- ring amplitude modulation circuit
- Double gate field effect transistor high frequency amplifier circuit