PSoC™ 5, 3 & 1 Forum Discussions

When charging multichemistry batteries with different cell capacities, the battery voltage can be higher or lower than the supply voltage at various stages of the charging. Thus, the supply voltage needs to be either boosted or attenuated to match the battery voltage. For example, a supply voltage of 3.3V must be attenuated, or bucked, when a single-cell NiMH (nickel-metal-hydride) battery with a typical voltage of 1.25V is being charged. When a single-cell, 4.1V lithium-ion battery is used, the input voltage needs to be boosted. Read more on EDN.

 When charging multichemistry batteries with different cell capacities, the battery voltage can be higher or lower than the supply voltage at various stages of the charging. Thus, the supply voltage needs to be either boosted or attenuated to match the battery voltage. For example, a supply voltage of 3.3V must be attenuated, or bucked, when a single-cell NiMH (nickel-metal-hydride) battery with a typical voltage of 1.25V is being charged. When a single-cell, 4.1V lithium-ion battery is used, the input voltage needs to be boosted. Read more on EDN.

We've moved the web address for our PSoC webinars.  All of our new webinars will take advantage of WebEx's Training Center features.  This will allow us to post topics to the web quicker, attendees can now register - and we can send out reminder emails.  This way, if you like something we are offering in a couple of weeks, you can register today, and be reminded as the event approaches.

The new address for these webinars is http://cypress.webex.com/meet/training.  Enjoy!

We've moved the web address for our PSoC webinars.  All of our new webinars will take advantage of WebEx's Training Center features.  This will allow us to post topics to the web quicker, attendees can now register - and we can send out reminder emails.  This way, if you like something we are offering in a couple of weeks, you can register today, and be reminded as the event approaches.

The new address for these webinars is http://cypress.webex.com/meet/training.  Enjoy!

Want to filter a bias, reference or even power supply voltage effectively, but only using circuitry that runs off a much-lower supply rail? Might sound impossible, but it is not. This article, by Kendall Castor-Perry, the "Filter Wizard", shows how it is done, with some theory in this article and a practical design in a forthcoming piece. Read the full article at EE Times.

Check out this article in EE Times by Cypress engineer, Mark Ainsworth, discussing whether or not a CPU is necessary in a microcontroller.

Although white goods may be used for a variety of applications, most of them operate on a similar concept. Each has a master processor that communicates with a legion of different control systems such as the temperature control, motor control, keypad, LCD, etc. Each control system in turn has one or many sensors and may use an independent microcontroller. This article discuss how to integrate the control systems in a microwave oven using a single microcontroller. Click here for complete article.

This two-part article discusses the following topics:

* basic understanding of the structure of an I/O block in any digital device

* different specifications of pin, which need to be understood, while selecting the device for application

* different variants of configurations of I/O block which need to be used for different application requirements

* choosing the particular configuration that will achieve both reduced BOM cost and improved system performance

Read part one - The building blocks

Read part two - Hot swap and other implementation issues