JPS6436124A - Transmission power control circuit in radio transmitter - Google Patents

Transmission power control circuit in radio transmitter

Info

Publication number
JPS6436124A
JPS6436124A JP19038887A JP19038887A JPS6436124A JP S6436124 A JPS6436124 A JP S6436124A JP 19038887 A JP19038887 A JP 19038887A JP 19038887 A JP19038887 A JP 19038887A JP S6436124 A JPS6436124 A JP S6436124A
Authority
JP
Japan
Prior art keywords
bit
power control
control circuit
temperature
control signal
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.)
Pending
Application number
JP19038887A
Other languages
Japanese (ja)
Inventor
Toshiyuki Okada
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP19038887A priority Critical patent/JPS6436124A/en
Publication of JPS6436124A publication Critical patent/JPS6436124A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To attain transmission power control under any temperature condition by providing a control means using a correction value corresponding to an output of a temperature sensing means to apply correction to the control signal thereby applying temperature compensation stably and simply. CONSTITUTION:A detection diode 3 detects an output voltage of a power amplifier 1, converts the voltage into a DC voltage, an A/D converter 4 applies A/D conversion to an output of a detection diode 3, a control circuit 5 compares the standard bit pattern of the power control signal with a bit pattern outputted from the A/D converter 4 and outputs a bit difference when any bit difference exists. The detection characteristic decrease of the detection diode 3 is given in advance to the control circuit 5, a thermister 9 senses the ambient temperature and the power control signal bit is corrected by using a correction value (bit) depending on the ambient temperature at that time. Thus, the temperature compensation is executed stably and simply under any temperature condition.
JP19038887A 1987-07-31 1987-07-31 Transmission power control circuit in radio transmitter Pending JPS6436124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19038887A JPS6436124A (en) 1987-07-31 1987-07-31 Transmission power control circuit in radio transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19038887A JPS6436124A (en) 1987-07-31 1987-07-31 Transmission power control circuit in radio transmitter

Publications (1)

Publication Number Publication Date
JPS6436124A true JPS6436124A (en) 1989-02-07

Family

ID=16257337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19038887A Pending JPS6436124A (en) 1987-07-31 1987-07-31 Transmission power control circuit in radio transmitter

Country Status (1)

Country Link
JP (1) JPS6436124A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402254A (en) * 1990-10-17 1995-03-28 Hitachi, Ltd. Liquid crystal display device with TFTS in which pixel electrodes are formed in the same plane as the gate electrodes with anodized oxide films before the deposition of silicon

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193524A (en) * 1985-02-21 1986-08-28 Oki Electric Ind Co Ltd Power amplifier circuit
JPS62203429A (en) * 1986-03-04 1987-09-08 Nec Corp Transmission power control circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193524A (en) * 1985-02-21 1986-08-28 Oki Electric Ind Co Ltd Power amplifier circuit
JPS62203429A (en) * 1986-03-04 1987-09-08 Nec Corp Transmission power control circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402254A (en) * 1990-10-17 1995-03-28 Hitachi, Ltd. Liquid crystal display device with TFTS in which pixel electrodes are formed in the same plane as the gate electrodes with anodized oxide films before the deposition of silicon
US5610738A (en) * 1990-10-17 1997-03-11 Hitachi, Ltd. Method for making LCD device in which gate insulator of TFT is formed after the pixel electrode but before the video signal line
US5671027A (en) * 1990-10-17 1997-09-23 Hitachi, Ltd. LCD device with TFTs in which pixel electrodes are formed in the same plane as the gate electrodes with anodized oxide films and before the deposition of the silicon gate insulator

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