What is the difference between DC-DC converter and voltage regulators and reference?

[sina25]

what is a DC-DC converter?

what is a voltage regulator?

what is a voltage reference?

if you could upload a figure showing a power management system i would appreciate you........

thanks

 

[IanP]

Re: power management

Try to find answers to your questions at:

https://en.wikipedia.org/wiki/Voltage_regulator

"Linear and switching voltage regulator handbook"
https://www.onsemi.com/pub/Collateral/HB206-D.PDF
For example:

B. Voltage Reference
Naturally, the major requirement for the reference is that it be stable; variations in supply voltage or junction temperature should have little or no effect on the value of the reference voltage (Vref).
1. Zener Diode Reference
The simplest form of a voltage reference is shown in Figure 1–3a. It consists of a resistor and a zener diode. The zener voltage (VZ) is used as the reference voltage ...

Regards,
IanP

 

[Miguel Gaspar]

Re: power management

what is a DC-DC converter?

what is a voltage regulator?

what is a voltage reference?

if you could upload a figure showing a power management system i would appreciate you........

thanks

A voltage regulator is a device that has the ability to give a voltage at certain desired level. An no matter of the amount of current.

Voltage reference is like the voltage regulator but for smalls currents.

 

[sina25]

Re: power management

what is the difference between DC-DC converter and voltage regulators and voltage references?

thanks

 

[cyberblak]

Re: power management

The DC-DC converters and the voltage regulators are used for the same purpose: powering a load with a fixed voltage level.

The difference between them is that a dc-dc converter uses magnetic storage and power switches to convert the input voltage into a different voltage. In this case, the input power equals the output power + some losses in parasitic elements. Finally, a dc-dc conveter can be used to raise, lower or invert the input voltage.

The voltage regulator can only lower its input voltage to a given level, and it dissipates the difference between the input power and the output power as heat.

The voltage reference is quite different since it is only used to give a precise voltage level. This voltage could be used as a reference for an analog-to-digital converter, per example. It can not provide power to a load with this voltage.

Hope this helps,

cyberblak

 

[jinsin]

power management

Someone can tell the relevant articles materials or website of digital power management??

Thanks in advance
Best regards,jinsin

 

[siongboon]

Re: power management

DIY building DC-DC converter using LM2576.
for reference.

**broken link removed**