Contents
What is MC34063?
MC34063 is basically a monolithic control circuit having all the functions required for the construction of DC to DC converters i.e. buck converter, boost converter or inverters etc. It consists of multiple functions, which are: Comparator. Oscillator. High current output switch.
How does MC34063 work?
MC34063 is a monolithic bipolar linear integrated circuit dedicated to the DC-DC converter control section. It consists of a reference voltage generator with automatic temperature compensation, a comparator, a duty-controlled oscillator, an R-S flip-flop and a high-current output switching circuit.
What kind of IC is needed for boost converter?
The IC MC34063 is contains all the primary circuitry needed for building simple DC-DC converters. Following Circuit is designed to boost Input voltage from 5V to 10V using single power supply source. This boost converter circuit is most suitable to drive or bias output actuators in the microcontroller or microprocessor based design.
What are the functions of a mc34063a converter?
The MC34063A Series is a monolithic control circuit containing the primary functions required for DC−to−DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch.
What is the current draw from the mc34063?
The current draw result (347mA) also consist the current draw from the bench power supply by the load itself. The load is powered using the bench power supply (12V / 60mA). So the actual current being drawn from the MC34063 output is 347-60 = 287mA.
Can a mc34063 be used as a MOSFET?
While the MC34063 has a built in darlington NPN transistor, it can only support voltages up to 40V which is not enough for us. Therefore we use this transistor to switch a IRF740 N-channel MOSFET (Q31) which can support up to 400V. Because the MC34063 is only able to pull the gate of Q31 high,we need a complimentary pull down.