Part Number: UC2842 Other Parts Discussed in Thread: UC3842 Tool/software: Dear experts，
The flyback power supply input voltage is 24VDC ,Vout=16V and the input capacitor is 9 x 10uF MLCCs in parallel.
When the flyback power supply is loaded with…
Part Number: UC1843A Other Parts Discussed in Thread: UC3842 Tool/software: From UCx84x datasheet (SLUS223G – APRIL 1997 – REVISED JULY 2022) Section 8.3.7 states: “The UC3842/3/4/5 oscillator must be set to a lower frequency than the sync…
Part Number: UC3842 In the UC3842 datasheet what is the synchronization function , I can't understand the word, Can somebody make a easy example to explain this to me?
Part Number: UC3842 Hi,
I need help converting a UC3842 in Flyback application Transfer Function from Plant H(s) and Closed Loop G(s) to h(t) and g(t) to do Bode Plots of Gain and determine crossover frequency.
H(s) = Fgo*(1 + (s/Wesrz)) * (1 - (s/Wrhpz…
Part Number: UC3842 Other Parts Discussed in Thread: UCC28C42 ,
How to understand the slop compensation circuit , I know the peak current mode control but I can't understand how to generate the triangle wave use BJT
Part Number: UC3842 I think the oscillator charging ramp equations is wrong the Ichg is time variant is not a constant how do the datasheet can get the delta Vosc can someone writhe more detail this data is hard to read. I want to know how to calculate…
Part Number: UC3842 Other Parts Discussed in Thread: LM5025 Dear Team,
Here is Kevin from Delta Taiwan.
Customer is using UC3842 as current mode controller.
If customer want voltage mode controller, which one will you suggest?
BR
Kevin
Part Number: UC3842 Dear Team,
Here is Kevin from Delta Taiwan.
Do we have excel tool or mahcad for UC3842 can help customer expedite the design?
BR
Kevin
Part Number: UC3842 Hi
I have built a power supply circuit using UC3842 . Input of power supply is 20VDC to 70VDC and
Output : a) 5V/0.3A (GND 1)
b) 24V / 0.2A and 5V / 0.2A (GND 2)
c) 24V / 0.2A and 5V / 0.2A (GND 3)
The power supply s functioning satisfactorily…
Controllers are not typically specified this way. For example, any general purpose PWM controller (UC3842 and all derivatives) operating in peak current mode control, can continue to operate indefinitely in an over current condition, as long as the current…
