Hi,
DC to DC Converter:=20
Zener Diode:=20
The DC to DC converter can handle input voltage upto 40V. DC to DC convert= er is configured to output 5V. I do not want the input voltage to exceed 33= Volts. That is why I am using a 33V Zener. But I think that DC to DC conve= rter will work fine if I use 6 to 7 volt and 1A Zener. Since the goal is t= o keep the output of the DC to DC converter stays at 5V. Am I right?=20
DC to DC converter is driving a Load of 15 ohms. As shown in the following = link =20
Figure 1 showing a resistor in series with the voltage source of value 17.4= V, Zener does not draw any current and output of the DC to DC converter is= desirable. Though if I reduce the value of the resistor to 30 ohm than the= voltage at the input of the DC to DC converter will raise to 13.2V.=20
Figure 3 shows that the Zener will burn and it did.=20
Questions:=20
- Do I need a Zener that can activate at 33V and can handle 2A? OR should = I get a 6 volt Zener that can handle 1 02 2 amps? I do want to keep the siz= e of the Zener and resistor small.=20
- I measured 62mA series current through 50ohm resistor but measured 300mA= at the output of the DC to DC converter. Can someone explain how did this = work?=20
Thanks jess