**Author:** Newton C. Braga

**Published: **Aug, 2016

**Formato: **Book and e-Book

**Pages: **183

Some years ago I had written a book directed to anyone who designs electronic and electric circuits. Engineers, technicians, teachers, students and hobbyists took a real benefit from that book. The original book is now out of print, being available only used issues. Since the book is very useful, the author decided to review the old edition, add new content and so create a new book for anyone who need a fast access to formulas, tables and calculations when designing his projects or solving a problem.

The author, who has himself designed multitudes of projects and circuits during his life, publishing many books and hundreds of articles in electronics magazines and teaching electronics, has collected an assortment of all basic information necessary for calculations needed when designing new projects or solving a problem.

More part of these formulas and calculations is now in the author´s site at www.newtoncbraga.com. The site also has versions in Portuguese (www.newtoncbraga.com.br) and in Spanish (www.incb.com.mx).

In the site the reader will also find practical examples in projects or articles where many of the formulas shown in this book are used.

When starting a project or solving a problem the main difficulty the designer or student founds is how to locate the desired information. This information is normally spread over a large number of resources, such as books, handbooks, Internet, and magazine articles.

Although many of us who are experienced in electronics have in mind the principal formulas, we sometimes have trouble with the forgotten constant, multiplication factor or exponent. Finding these values is sometimes difficult depending of the circumstances, such as where you are at the time, or the amount of resources at your disposal.

BRIDGES

128. WHEATSTONE BRIDGE

129. WIEN BRIDGE

130. RESONANCE BRIDGE

131. MAXWELL BRIDGE

132. SCHERING BRIDGE

133. OWEN BRIDGE

134. HAY BRIDGE

---

OPERATIONAL AMPLIFIERS

135. NON-INVERTING OP. AMP.

136. INVERTING OP. AMP.

137. VOLTAGE FOLLOWER

138. SUMMING OP. AMP.

139. SUBTRACTION OP. AMP.

140. DIFFERENTIATION USING OP. AMP.

141. INTEGRATION USING OP. AMP.

142. LOGARITHMIC OP. AMP.

143. VOLTAGE SOURCE

144. CONSTANT CURRENT SOURCE - Op. Amp

145. CONSTANT CURRENT SOURCE - Op. Amp.

146. ABSOLUTE VALUE AMPLIFIER - Op. Amp.

147. VOLTIMETER USING Op. Amp.

148. SQUARE WAVE OSCILLATOR - Op. Amp.

149. WIEN BRIDGE OSCILLATOR USING Op. Amp.

150. BANDPASS AMPLIFIER USING Op. Amp.

151. NOTCH FILTER - Op. Amp.

152. LOW-PASS FILTER - Op. Amp.

153. HIGH-PASS FILTER - Op. Amp.

154. BUTTERWORTH FILTER - Op. Amp.

155. SERIES VOLTAGE REGULATOR (one transistor)

156. PARALLEL VOLTAGE REGULADOR

---

INTEGRATED VOLTAGE REGULATORS

157. VOLTAGE REGULATORS

158. CURRENT REGULATOR

159. Calculating a voltage regulator

---

Digital Circuits

160. Binary to Decimal Conversion

161. BYTE TO DECIMAL CONVERSION

162. BCD to Decimal Conversion

163. HEXADECIMAL TO DECIMAL CONVERSION

164. Decimal-to-Binary Conversion

165. DECIMAL TO HEXADECIMAL

---

Logic Functions

166. AND Gate

167. NAND Gate

168. OR Gate

169. NOR Gate

170. Exclusive-OR

171. Inverter

172. Binary Addition

173. Binary Subtraction

174. Binary Multiplication

175. Binary Division

---

The Postulates of Boolean Algebra

176. Laws of Tautology

177. Laws of Commutation

178. The Laws of Association

179. Laws of Distribution

180. Laws of Absorption

181. Laws of Universe Class

182. The Laws of Null Class

183. Laws of Complementation

184. Laws of Contraposition

185. Law of Double Negation

186. Laws of Expansion

187. Laws of Duality

---

Boolean Relationships

188. Idempoint

189. Commutative

190. Associative

191. Boolean Relationship - Distributive

192. Absortion

193. Demorgan Theorem

---

Miscelaneous

194. Instantaneous Values of Sine Waves

195. Inches to Millimeters

196. Millimeters to Decimal Inches

---

Temperature Conversions

197. Degrees Celsius (C), Degrees Fahrenheit (F), Degrees Kelvin (K) and Degrees Reamur

---

Sound and Acoustics

198. Sound Wavelength

199. Velocity of Longitudinal Sound Waves

200. Sound Interval

201. Sound Pressure

202. Sound Pressure Level

203. Sound Intensity

204. Interference (Beat)

205. Doppler Effect

---

Loudspeaker Crossover Networks

206. Simple Crossover Network for Tweeter (6dB/octave)

207. 6 dB Octave Crossover Network II

208. Two-Channel 12 dB/Octave Loudspeaker Crossover

209. Two-Channel 18 dB/octave PI-Crossover Network

210. Crossover and Design Frequencies for 3-way Networks

211. Three-Channel 6 dB/Octave Crossover (Series)

212. Three-Chanell 6dB/Octave Crossover (Parallel)

213. Three-Channel 12 dB/Octave Crossover (Series)

214. Three- Channel 12 dB/Octave Crossover (Parallel)

215. Weeler's Formula

---

Optoelectronics

216. Wavelength and Frequency for Light Radiation

217. Luminous Intensity and Flux

218. Luminous Density

219. Refraction

220.LEDs

221. Photocell

222. LDR or Photoresistor

223. Photodiode

224. Phototransistor

225. Stefan-Boltzmann's Law

---

Mathematics

226. Differentiation Formulas

227. Integration Formulas

228. Tolerances

229. Fourier Transforms