GB201207545D0 - Power control system - Google Patents

Power control system

Info

Publication number
GB201207545D0
GB201207545D0 GB201207545A GB201207545A GB201207545D0 GB 201207545 D0 GB201207545 D0 GB 201207545D0 GB 201207545 A GB201207545 A GB 201207545A GB 201207545 A GB201207545 A GB 201207545A GB 201207545 D0 GB201207545 D0 GB 201207545D0
Authority
GB
United Kingdom
Prior art keywords
voltage
controller
pwm
capacitor
pulse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB201207545A
Other versions
GB2501539A (en
GB2501539B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Control Techniques Ltd
Original Assignee
Nidec Control Techniques Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidec Control Techniques Ltd filed Critical Nidec Control Techniques Ltd
Priority to GB1207545.3A priority Critical patent/GB2501539B/en
Publication of GB201207545D0 publication Critical patent/GB201207545D0/en
Priority to CN201210563662.0A priority patent/CN103378723B/en
Publication of GB2501539A publication Critical patent/GB2501539A/en
Application granted granted Critical
Publication of GB2501539B publication Critical patent/GB2501539B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/1563—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators without using an external clock

Abstract

A pulse-width modulation (PWM) controller 103 toggles a control switch TR1 between ON and OFF states. The voltage across a charge storage unit such as capacitor C5 increases as it is charged and is detected at an input RT/CT. A voltage sustain unit 105 holds the voltage of the charge storage unit C5 at a holding voltage which is less than the timing voltage threshold of the pulse-width modulation controller 103. The sustain unit can be connected in parallel with the capacitor and comprise a resistor R4 whose resistance sets the holding voltage and a switch such as transistor TR6 which is toggled in response to the output of the PWM controller. The PWM controller can be used in a switch mode power supply which it enables to operate using near to one hundred percent duty cycle, eliminating dead time, and at high efficiency where the desired output voltage is close to the input voltage.
GB1207545.3A 2012-04-27 2012-04-27 Power control system Active GB2501539B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1207545.3A GB2501539B (en) 2012-04-27 2012-04-27 Power control system
CN201210563662.0A CN103378723B (en) 2012-04-27 2012-12-21 Power control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1207545.3A GB2501539B (en) 2012-04-27 2012-04-27 Power control system

Publications (3)

Publication Number Publication Date
GB201207545D0 true GB201207545D0 (en) 2012-06-13
GB2501539A GB2501539A (en) 2013-10-30
GB2501539B GB2501539B (en) 2018-10-24

Family

ID=46330569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1207545.3A Active GB2501539B (en) 2012-04-27 2012-04-27 Power control system

Country Status (2)

Country Link
CN (1) CN103378723B (en)
GB (1) GB2501539B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104749951A (en) * 2013-12-31 2015-07-01 鸿富锦精密工业（深圳）有限公司 Pulse width modulation controller and power supply circuit provided with same
CN110347064B (en) * 2018-04-03 2020-11-20 维谛技术有限公司 Power supply control circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377091A (en) * 1994-01-28 1994-12-27 Compaq Computer Corporation Power converter having regeneration circuit for reducing oscillations
DE10330605A1 (en) * 2003-07-07 2005-01-27 Deutsche Thomson-Brandt Gmbh Switching Power Supply
US6906473B2 (en) * 2003-08-26 2005-06-14 Osram Sylvania Inc. Feedback circuit and method of operating ballast resonant inverter

Also Published As

Publication number Publication date
GB2501539A (en) 2013-10-30
CN103378723A (en) 2013-10-30
GB2501539B (en) 2018-10-24
CN103378723B (en) 2016-09-07

Similar Documents

Publication Publication Date Title
IN2014KN01763A (en)
WO2014137786A3 (en) Using synchronous converter in asynchronous mode to prevent current reversal during battery charging
EP2779402A3 (en) Switched mode power converter controller with ramp time modulation
MX2012013183A (en) Methods and systems for controlling electrical power to dc loads.
GB2518073A (en) Adapting a battery voltage
EP2398146A3 (en) High power DC SSPC with capability of soft turn-on to large capacitive loads
WO2015130959A3 (en) Switching mode power supply with adaptively randomized spread spectrum
GB2540913A (en) Constant voltage and constant current driver circuit
IN2014DN08907A (en)
MY180830A (en) Method and device for contolling start of switching rectifier, and storage medium
TW201614941A (en) Voltage converting controller and method of voltage converting control
EP2752266A3 (en) Power supply device for electric discharge machining
MX2017003700A (en) Systems and methods for damper actuator without microcontroller.
GB201207545D0 (en) Power control system
EP2654383A3 (en) Light adjusting circuit
EP4220923A3 (en) Efficient energy use in low power products
RU2016141212A (en) Device for producing direct current flowing in the load power circuit
CN102709021B (en) Control circuit for electromagnet and electromagnetic valve
CN202455167U (en) CT (computerized tomography) power taking circuit
CN204559534U (en) A kind of timing control circuit
CN204090205U (en) Based on the low-power consumption LED drive circuit that PWM controls
CN203658754U (en) Output power-on time sequence control circuit
JP2009141408A5 (en)
CA2862952C (en) Battery storage system and controlling method of the same
CN204993980U (en) Touch panel LED