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΅C Controls Charge Pump as Background Task  - 08/01/97 EDN-Design Ideas: Because of power consumption and cost, designers of battery-powered devices mainly choose components that run at 3V or lower. Unfortunately, many devices operate only at 5V, including LCDs with built-in drivers, programming lines of many EEPROMs and flash chips, and CMOS ADCs
10 Khz VFC uses Charge Pump Variation - 04/09/98 EDN-Design Ideas: (design idea)
100ma UltraLow Noise Charge Pump LED Supply with Output Current Adjust - Linear Technology LTC3201 (app note)
12V Touch Switch Exciter Circuit - This circuit is designed to generate a 20KHz pseudo sine wave signal that can power about 50 remote touch activated switch circuits.  It can support a cable length of about 2500 feet.  A typical remote switch circuit is also shown as well as a receiver circuit for those switches. ….(circuit designed by David A. Johnson)
200mhz-400mhz Voltage Controlled Oscillator (VCO) - If you need a clean emitter coupled logic (ECL) type signal between 200MHz and 400MHz this circuit works fine. It uses four voltage-controlled capacitors to change the frequency. ….(designed by David A. Johnson)
300v Peak to Peak Signal Generator - This circuit converts a square wave signal to a +-150 volt output signal with fast 100nS rise and fall times. ….(designed by David A. Johnson)
40kHz LED Test Signal Generator - This 40KHz crystal controlled oscillator circuit drives an infrared LED with powerful 40ma pulses.  The circuit can be used to test optical communications circuits, designed to receive 40KHz modulated light signals. ….(designed by David A. Johnson)
5V Power Supply Teams Low Dropout Regulator Charge Pump - 01/08/04 EDN-Design Ideas: Auxiliary power of 3.3V is replacing  5V auxiliary power that "silver boxes" supply in most computer systems, but some circuits still require a 5V supply. Such systems impose  messy task
AN152 Using the CS5521/22/23/24/28 & CS5525/26 Charge Pump Drive for External Loads
AN-347: Shielding & Guarding - AN-347 Analog Devices Application Note  (app note)
AN-348: Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application Note  (app note)  The Wrong Passive Component Can Derail Even  Best Op Amp or Data Converter. Here Are Some Basic Traps to Watch For.
AN-349: Keys to Longer Life for CMOS - AN-349 Analog Devices Application Notes  Here's How CMOS Can be Protected Against Abuse
AN-703: Driving High Power LEDs - AN-703 Analog Devices Application Note  (app note)
AN-772: A Design & Manufacturing Guide for the Lead Frame Chip Scale Package - AN-772 Analog Devices Application Note
AN813: Applying the TC1219/TC1220 Inverting Charge Pumps with Small External Capacitor Values - Microchip Application Note Published 20-Sep-04
Audio Frequency Digital Noise Generator - When you need to test an audio circuit with broadband noise, this circuit works great. It uses just three inexpensive C-MOS ICs that generate a series of output pulses whose widths vary randomly. I included a level control pot. ….(designed by David A. Johnson)
Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application Note  (app note)  The Wrong Passive Component Can Derail Even  Best Op Amp or Data Converter. Here Are Some Basic Traps to Watch For.
Boost Converter Generates 3 Analog Rails - Maxim Application Note #2026 In Figure 1, a standard boost converter consisting of IC1, C1, L1, D1, and C2 generates, in addition to  main output, two auxiliary supply rails (10V and -5V) with  addition of some small and very low-cost extra components.
Boost Converter Generates Three Analog Rails - 07/02/98 EDN-Design Ideas: The standard boost converter in Figure 1 uses not only IC1, C1, L 1, D1, and C2 to generate a main 5V output, but also additional small, low-cost components to provide two auxiliary supply rails of 10 and –5V
Buck/Boost Charge Pump Regulator Powers White LEDs from a Wide 1.6 Volt to 5.5 Volt Input - Maxim Application Note #1021
Build a Charge Pump with UltraLow Quiescent Current - 09/05/04 EDN-Design Ideas: Portable battery-powered devices often spend most of ir life in standby mode, in which  quiescent current of an internal boost converter continuously bleeds  battery. The quiescent current during standby can be larger than
Caps Provide Voltage Boost To Series Regulator - This circuit adds some capacitors and diodes to a traditional transformer type series regulator circuit to extend the normal operating range. It can insure regulation during low line voltage conditions or it can squeeze a few more watts out of a plug-in-the-wall power adapter power supply. ….(designed by David A. Johnson)
Charge Pump & Step Up DC DC Converter Solutions for Powering White LEDs in Series or Parallel Connections - Maxim Application Note #1037
Charge Pump Circuit Divides by Two - 02/18/99 EDN-Design Ideas: Small size and efficiency approaching 100% make switched-capacitor charge pumps popular for voltage doubling and inverting in miniature dc-dc applications. Few are aware, however, that most charge pumps can halve as well as double or invert an input voltage. The increasing adoption of low-voltage logic makes this χ2.....(design idea)
Charge pump converts –5V to 5V - 01/20/05 EDN-Design Ideas:.....(design idea)
Charge Pump Converts Volt in to± Volt Out - 09/02/99 EDN-Design Ideas: /A charge-pump IC's ability to produce both VIN and -VIN outputs allows  circuit in Figure 1 to generate separate positive and negative outputs from a single input voltage, regardless of  input-voltage polarity. For example,  circuit allows an RS-232C interface to generate a dual supply for low-power data-acquisition systems.....(design idea)
Charge Pump Doubles Negative Voltage - Maxim App Note #782 (app note)
Charge Pump Efficiently Divides Supply Voltage  - This circuit uses a few FETs and logic devices to down convert a DC voltage to about one half its value ….(designed by David A. Johnson)
Charge Pump Generates Positive Bias - 03/02/95 EDN-Design Ideas: (design idea)
Charge Pump Voltage Quadrupler
Choosing the Right Power Supply IC for Your Application - Maxim Application Note #737 (app note)
Circuit Provides +5 Volt Gate Bias From  48 Volt Input - Maxim Application Note #1803 (app note)
Circuit Provides 5V Gate Bias From48V - 09/19/02 EDN-Design Ideas: A small and simple circuit derives 5V from the -48V rail that telecomm applications typically use (Figure 1). Useful for gate bias and other purposes, the 5V supply delivers as much as 5-mA output current. A shunt reference.....(design idea)
CMOS Inverter 125kHz LC Oscillator - This circuit uses a single CMOS inverter to form a series resonant LD oscillator.   The values shown set the oscillation at about 125KHz buth other frequencies are possible by changing the main LC values. ….(designed by David A. Johnson)
CMOS Inverters Form 125kHz Oscillator - This circuit is similar to schematic CMOS INVERTER 125KHz LC OSCILLATOR but inverts the LC components so the inductor is grounded.  Two inverters are needed to produce the needed oscillation.  Again, the values shown set the frequency at 125KHz but can be changed to produce other frequencies. ….(designed by David A. Johnson)
CMOS Nand Gate Forms Gated 125kHz Oscillator - This circuit is similar to schematic CMOS INVERTER 125KHz LC OSCILLATOR but uses a NAND gate as an inverter.  The gate allows the oscillator to be gated on and off.  Again, the values shown set the frequency at 125KHz but can be changed to produce other frequencies. ….(designed by David A. Johnson)
Compact Inductorless Boost Circuit Regulates White LED Bias Current - Maxim Application Note #1116 (app note)
Controlling a Variable Voltage Power Supply using the DS1809 Pushbutton Control - Maxim Application Note #1035 (app note)
 
 
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